Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 1 | import contextlib |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 2 | import collections |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 3 | import pickle |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 4 | import re |
| 5 | import sys |
Guido van Rossum | 91185fe | 2016-06-08 11:19:11 -0700 | [diff] [blame] | 6 | from unittest import TestCase, main, skipUnless, SkipTest |
Guido van Rossum | b7dedc8 | 2016-10-29 12:44:29 -0700 | [diff] [blame] | 7 | from copy import copy, deepcopy |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 8 | |
Ivan Levkivskyi | f06e021 | 2017-05-02 19:14:07 +0200 | [diff] [blame] | 9 | from typing import Any, NoReturn |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 10 | from typing import TypeVar, AnyStr |
| 11 | from typing import T, KT, VT # Not in __all__. |
| 12 | from typing import Union, Optional |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 13 | from typing import Tuple, List, MutableMapping |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 14 | from typing import Callable |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 15 | from typing import Generic, ClassVar, GenericMeta |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 16 | from typing import cast |
| 17 | from typing import get_type_hints |
| 18 | from typing import no_type_check, no_type_check_decorator |
Guido van Rossum | eb9aca3 | 2016-05-24 16:38:22 -0700 | [diff] [blame] | 19 | from typing import Type |
Guido van Rossum | 91185fe | 2016-06-08 11:19:11 -0700 | [diff] [blame] | 20 | from typing import NewType |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 21 | from typing import NamedTuple |
| 22 | from typing import IO, TextIO, BinaryIO |
| 23 | from typing import Pattern, Match |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 24 | import abc |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 25 | import typing |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 26 | import weakref |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 27 | try: |
| 28 | import collections.abc as collections_abc |
| 29 | except ImportError: |
| 30 | import collections as collections_abc # Fallback for PY3.2. |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 31 | |
| 32 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 33 | class BaseTestCase(TestCase): |
| 34 | |
| 35 | def assertIsSubclass(self, cls, class_or_tuple, msg=None): |
| 36 | if not issubclass(cls, class_or_tuple): |
| 37 | message = '%r is not a subclass of %r' % (cls, class_or_tuple) |
| 38 | if msg is not None: |
| 39 | message += ' : %s' % msg |
| 40 | raise self.failureException(message) |
| 41 | |
| 42 | def assertNotIsSubclass(self, cls, class_or_tuple, msg=None): |
| 43 | if issubclass(cls, class_or_tuple): |
| 44 | message = '%r is a subclass of %r' % (cls, class_or_tuple) |
| 45 | if msg is not None: |
| 46 | message += ' : %s' % msg |
| 47 | raise self.failureException(message) |
| 48 | |
Guido van Rossum | ca4b252 | 2016-11-19 10:32:41 -0800 | [diff] [blame] | 49 | def clear_caches(self): |
| 50 | for f in typing._cleanups: |
| 51 | f() |
| 52 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 53 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 54 | class Employee: |
| 55 | pass |
| 56 | |
| 57 | |
| 58 | class Manager(Employee): |
| 59 | pass |
| 60 | |
| 61 | |
| 62 | class Founder(Employee): |
| 63 | pass |
| 64 | |
| 65 | |
| 66 | class ManagingFounder(Manager, Founder): |
| 67 | pass |
| 68 | |
| 69 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 70 | class AnyTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 71 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 72 | def test_any_instance_type_error(self): |
| 73 | with self.assertRaises(TypeError): |
| 74 | isinstance(42, Any) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 75 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 76 | def test_any_subclass_type_error(self): |
| 77 | with self.assertRaises(TypeError): |
| 78 | issubclass(Employee, Any) |
| 79 | with self.assertRaises(TypeError): |
| 80 | issubclass(Any, Employee) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 81 | |
| 82 | def test_repr(self): |
| 83 | self.assertEqual(repr(Any), 'typing.Any') |
| 84 | |
| 85 | def test_errors(self): |
| 86 | with self.assertRaises(TypeError): |
| 87 | issubclass(42, Any) |
| 88 | with self.assertRaises(TypeError): |
| 89 | Any[int] # Any is not a generic type. |
| 90 | |
| 91 | def test_cannot_subclass(self): |
| 92 | with self.assertRaises(TypeError): |
| 93 | class A(Any): |
| 94 | pass |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 95 | with self.assertRaises(TypeError): |
| 96 | class A(type(Any)): |
| 97 | pass |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 98 | |
| 99 | def test_cannot_instantiate(self): |
| 100 | with self.assertRaises(TypeError): |
| 101 | Any() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 102 | with self.assertRaises(TypeError): |
| 103 | type(Any)() |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 104 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 105 | def test_any_works_with_alias(self): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 106 | # These expressions must simply not fail. |
| 107 | typing.Match[Any] |
| 108 | typing.Pattern[Any] |
| 109 | typing.IO[Any] |
| 110 | |
| 111 | |
Ivan Levkivskyi | f06e021 | 2017-05-02 19:14:07 +0200 | [diff] [blame] | 112 | class NoReturnTests(BaseTestCase): |
| 113 | |
| 114 | def test_noreturn_instance_type_error(self): |
| 115 | with self.assertRaises(TypeError): |
| 116 | isinstance(42, NoReturn) |
| 117 | |
| 118 | def test_noreturn_subclass_type_error(self): |
| 119 | with self.assertRaises(TypeError): |
| 120 | issubclass(Employee, NoReturn) |
| 121 | with self.assertRaises(TypeError): |
| 122 | issubclass(NoReturn, Employee) |
| 123 | |
| 124 | def test_repr(self): |
| 125 | self.assertEqual(repr(NoReturn), 'typing.NoReturn') |
| 126 | |
| 127 | def test_not_generic(self): |
| 128 | with self.assertRaises(TypeError): |
| 129 | NoReturn[int] |
| 130 | |
| 131 | def test_cannot_subclass(self): |
| 132 | with self.assertRaises(TypeError): |
| 133 | class A(NoReturn): |
| 134 | pass |
| 135 | with self.assertRaises(TypeError): |
| 136 | class A(type(NoReturn)): |
| 137 | pass |
| 138 | |
| 139 | def test_cannot_instantiate(self): |
| 140 | with self.assertRaises(TypeError): |
| 141 | NoReturn() |
| 142 | with self.assertRaises(TypeError): |
| 143 | type(NoReturn)() |
| 144 | |
| 145 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 146 | class TypeVarTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 147 | |
| 148 | def test_basic_plain(self): |
| 149 | T = TypeVar('T') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 150 | # T equals itself. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 151 | self.assertEqual(T, T) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 152 | # T is an instance of TypeVar |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 153 | self.assertIsInstance(T, TypeVar) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 154 | |
| 155 | def test_typevar_instance_type_error(self): |
| 156 | T = TypeVar('T') |
| 157 | with self.assertRaises(TypeError): |
| 158 | isinstance(42, T) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 159 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 160 | def test_typevar_subclass_type_error(self): |
| 161 | T = TypeVar('T') |
| 162 | with self.assertRaises(TypeError): |
| 163 | issubclass(int, T) |
| 164 | with self.assertRaises(TypeError): |
| 165 | issubclass(T, int) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 166 | |
| 167 | def test_constrained_error(self): |
| 168 | with self.assertRaises(TypeError): |
| 169 | X = TypeVar('X', int) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 170 | X |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 171 | |
| 172 | def test_union_unique(self): |
| 173 | X = TypeVar('X') |
| 174 | Y = TypeVar('Y') |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 175 | self.assertNotEqual(X, Y) |
| 176 | self.assertEqual(Union[X], X) |
| 177 | self.assertNotEqual(Union[X], Union[X, Y]) |
| 178 | self.assertEqual(Union[X, X], X) |
| 179 | self.assertNotEqual(Union[X, int], Union[X]) |
| 180 | self.assertNotEqual(Union[X, int], Union[int]) |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 181 | self.assertEqual(Union[X, int].__args__, (X, int)) |
| 182 | self.assertEqual(Union[X, int].__parameters__, (X,)) |
| 183 | self.assertIs(Union[X, int].__origin__, Union) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 184 | |
| 185 | def test_union_constrained(self): |
| 186 | A = TypeVar('A', str, bytes) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 187 | self.assertNotEqual(Union[A, str], Union[A]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 188 | |
| 189 | def test_repr(self): |
| 190 | self.assertEqual(repr(T), '~T') |
| 191 | self.assertEqual(repr(KT), '~KT') |
| 192 | self.assertEqual(repr(VT), '~VT') |
| 193 | self.assertEqual(repr(AnyStr), '~AnyStr') |
| 194 | T_co = TypeVar('T_co', covariant=True) |
| 195 | self.assertEqual(repr(T_co), '+T_co') |
| 196 | T_contra = TypeVar('T_contra', contravariant=True) |
| 197 | self.assertEqual(repr(T_contra), '-T_contra') |
| 198 | |
| 199 | def test_no_redefinition(self): |
| 200 | self.assertNotEqual(TypeVar('T'), TypeVar('T')) |
| 201 | self.assertNotEqual(TypeVar('T', int, str), TypeVar('T', int, str)) |
| 202 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 203 | def test_cannot_subclass_vars(self): |
| 204 | with self.assertRaises(TypeError): |
| 205 | class V(TypeVar('T')): |
| 206 | pass |
| 207 | |
| 208 | def test_cannot_subclass_var_itself(self): |
| 209 | with self.assertRaises(TypeError): |
| 210 | class V(TypeVar): |
| 211 | pass |
| 212 | |
| 213 | def test_cannot_instantiate_vars(self): |
| 214 | with self.assertRaises(TypeError): |
| 215 | TypeVar('A')() |
| 216 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 217 | def test_bound_errors(self): |
| 218 | with self.assertRaises(TypeError): |
| 219 | TypeVar('X', bound=42) |
| 220 | with self.assertRaises(TypeError): |
| 221 | TypeVar('X', str, float, bound=Employee) |
| 222 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 223 | def test_no_bivariant(self): |
| 224 | with self.assertRaises(ValueError): |
| 225 | TypeVar('T', covariant=True, contravariant=True) |
| 226 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 227 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 228 | class UnionTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 229 | |
| 230 | def test_basics(self): |
| 231 | u = Union[int, float] |
| 232 | self.assertNotEqual(u, Union) |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 233 | |
| 234 | def test_subclass_error(self): |
| 235 | with self.assertRaises(TypeError): |
| 236 | issubclass(int, Union) |
| 237 | with self.assertRaises(TypeError): |
| 238 | issubclass(Union, int) |
| 239 | with self.assertRaises(TypeError): |
| 240 | issubclass(int, Union[int, str]) |
| 241 | with self.assertRaises(TypeError): |
| 242 | issubclass(Union[int, str], int) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 243 | |
| 244 | def test_union_any(self): |
| 245 | u = Union[Any] |
| 246 | self.assertEqual(u, Any) |
Guido van Rossum | b47c9d2 | 2016-10-03 08:40:50 -0700 | [diff] [blame] | 247 | u1 = Union[int, Any] |
| 248 | u2 = Union[Any, int] |
| 249 | u3 = Union[Any, object] |
| 250 | self.assertEqual(u1, u2) |
| 251 | self.assertNotEqual(u1, Any) |
| 252 | self.assertNotEqual(u2, Any) |
| 253 | self.assertNotEqual(u3, Any) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 254 | |
| 255 | def test_union_object(self): |
| 256 | u = Union[object] |
| 257 | self.assertEqual(u, object) |
| 258 | u = Union[int, object] |
| 259 | self.assertEqual(u, object) |
| 260 | u = Union[object, int] |
| 261 | self.assertEqual(u, object) |
| 262 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 263 | def test_unordered(self): |
| 264 | u1 = Union[int, float] |
| 265 | u2 = Union[float, int] |
| 266 | self.assertEqual(u1, u2) |
| 267 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 268 | def test_single_class_disappears(self): |
| 269 | t = Union[Employee] |
| 270 | self.assertIs(t, Employee) |
| 271 | |
| 272 | def test_base_class_disappears(self): |
| 273 | u = Union[Employee, Manager, int] |
| 274 | self.assertEqual(u, Union[int, Employee]) |
| 275 | u = Union[Manager, int, Employee] |
| 276 | self.assertEqual(u, Union[int, Employee]) |
| 277 | u = Union[Employee, Manager] |
| 278 | self.assertIs(u, Employee) |
| 279 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 280 | def test_union_union(self): |
| 281 | u = Union[int, float] |
| 282 | v = Union[u, Employee] |
| 283 | self.assertEqual(v, Union[int, float, Employee]) |
| 284 | |
| 285 | def test_repr(self): |
| 286 | self.assertEqual(repr(Union), 'typing.Union') |
| 287 | u = Union[Employee, int] |
| 288 | self.assertEqual(repr(u), 'typing.Union[%s.Employee, int]' % __name__) |
| 289 | u = Union[int, Employee] |
| 290 | self.assertEqual(repr(u), 'typing.Union[int, %s.Employee]' % __name__) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 291 | T = TypeVar('T') |
| 292 | u = Union[T, int][int] |
| 293 | self.assertEqual(repr(u), repr(int)) |
| 294 | u = Union[List[int], int] |
| 295 | self.assertEqual(repr(u), 'typing.Union[typing.List[int], int]') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 296 | |
| 297 | def test_cannot_subclass(self): |
| 298 | with self.assertRaises(TypeError): |
| 299 | class C(Union): |
| 300 | pass |
| 301 | with self.assertRaises(TypeError): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 302 | class C(type(Union)): |
| 303 | pass |
| 304 | with self.assertRaises(TypeError): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 305 | class C(Union[int, str]): |
| 306 | pass |
| 307 | |
| 308 | def test_cannot_instantiate(self): |
| 309 | with self.assertRaises(TypeError): |
| 310 | Union() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 311 | with self.assertRaises(TypeError): |
| 312 | type(Union)() |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 313 | u = Union[int, float] |
| 314 | with self.assertRaises(TypeError): |
| 315 | u() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 316 | with self.assertRaises(TypeError): |
| 317 | type(u)() |
| 318 | |
| 319 | def test_union_generalization(self): |
| 320 | self.assertFalse(Union[str, typing.Iterable[int]] == str) |
| 321 | self.assertFalse(Union[str, typing.Iterable[int]] == typing.Iterable[int]) |
| 322 | self.assertTrue(Union[str, typing.Iterable] == typing.Iterable) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 323 | |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 324 | def test_union_compare_other(self): |
| 325 | self.assertNotEqual(Union, object) |
| 326 | self.assertNotEqual(Union, Any) |
| 327 | self.assertNotEqual(ClassVar, Union) |
| 328 | self.assertNotEqual(Optional, Union) |
| 329 | self.assertNotEqual([None], Optional) |
| 330 | self.assertNotEqual(Optional, typing.Mapping) |
| 331 | self.assertNotEqual(Optional[typing.MutableMapping], Union) |
| 332 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 333 | def test_optional(self): |
| 334 | o = Optional[int] |
| 335 | u = Union[int, None] |
| 336 | self.assertEqual(o, u) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 337 | |
| 338 | def test_empty(self): |
| 339 | with self.assertRaises(TypeError): |
| 340 | Union[()] |
| 341 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 342 | def test_union_instance_type_error(self): |
| 343 | with self.assertRaises(TypeError): |
| 344 | isinstance(42, Union[int, str]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 345 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 346 | def test_no_eval_union(self): |
| 347 | u = Union[int, str] |
| 348 | def f(x: u): ... |
| 349 | self.assertIs(get_type_hints(f)['x'], u) |
| 350 | |
| 351 | def test_function_repr_union(self): |
| 352 | def fun() -> int: ... |
| 353 | self.assertEqual(repr(Union[fun, int]), 'typing.Union[fun, int]') |
| 354 | |
Guido van Rossum | ca636ea | 2015-10-19 14:55:47 -0700 | [diff] [blame] | 355 | def test_union_str_pattern(self): |
| 356 | # Shouldn't crash; see http://bugs.python.org/issue25390 |
| 357 | A = Union[str, Pattern] |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 358 | A |
Guido van Rossum | ca636ea | 2015-10-19 14:55:47 -0700 | [diff] [blame] | 359 | |
Guido van Rossum | 91185fe | 2016-06-08 11:19:11 -0700 | [diff] [blame] | 360 | def test_etree(self): |
| 361 | # See https://github.com/python/typing/issues/229 |
| 362 | # (Only relevant for Python 2.) |
| 363 | try: |
| 364 | from xml.etree.cElementTree import Element |
| 365 | except ImportError: |
| 366 | raise SkipTest("cElementTree not found") |
| 367 | Union[Element, str] # Shouldn't crash |
| 368 | |
| 369 | def Elem(*args): |
| 370 | return Element(*args) |
| 371 | |
| 372 | Union[Elem, str] # Nor should this |
| 373 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 374 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 375 | class TupleTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 376 | |
| 377 | def test_basics(self): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 378 | with self.assertRaises(TypeError): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 379 | issubclass(Tuple, Tuple[int, str]) |
| 380 | with self.assertRaises(TypeError): |
| 381 | issubclass(tuple, Tuple[int, str]) |
| 382 | |
| 383 | class TP(tuple): ... |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 384 | self.assertTrue(issubclass(tuple, Tuple)) |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 385 | self.assertTrue(issubclass(TP, Tuple)) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 386 | |
Guido van Rossum | 5abcbb3 | 2016-04-18 07:37:41 -0700 | [diff] [blame] | 387 | def test_equality(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 388 | self.assertEqual(Tuple[int], Tuple[int]) |
| 389 | self.assertEqual(Tuple[int, ...], Tuple[int, ...]) |
| 390 | self.assertNotEqual(Tuple[int], Tuple[int, int]) |
| 391 | self.assertNotEqual(Tuple[int], Tuple[int, ...]) |
Guido van Rossum | 5abcbb3 | 2016-04-18 07:37:41 -0700 | [diff] [blame] | 392 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 393 | def test_tuple_subclass(self): |
| 394 | class MyTuple(tuple): |
| 395 | pass |
| 396 | self.assertTrue(issubclass(MyTuple, Tuple)) |
| 397 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 398 | def test_tuple_instance_type_error(self): |
| 399 | with self.assertRaises(TypeError): |
| 400 | isinstance((0, 0), Tuple[int, int]) |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 401 | self.assertIsInstance((0, 0), Tuple) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 402 | |
| 403 | def test_repr(self): |
| 404 | self.assertEqual(repr(Tuple), 'typing.Tuple') |
Guido van Rossum | 91185fe | 2016-06-08 11:19:11 -0700 | [diff] [blame] | 405 | self.assertEqual(repr(Tuple[()]), 'typing.Tuple[()]') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 406 | self.assertEqual(repr(Tuple[int, float]), 'typing.Tuple[int, float]') |
| 407 | self.assertEqual(repr(Tuple[int, ...]), 'typing.Tuple[int, ...]') |
| 408 | |
| 409 | def test_errors(self): |
| 410 | with self.assertRaises(TypeError): |
| 411 | issubclass(42, Tuple) |
| 412 | with self.assertRaises(TypeError): |
| 413 | issubclass(42, Tuple[int]) |
| 414 | |
| 415 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 416 | class CallableTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 417 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 418 | def test_self_subclass(self): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 419 | with self.assertRaises(TypeError): |
| 420 | self.assertTrue(issubclass(type(lambda x: x), Callable[[int], int])) |
| 421 | self.assertTrue(issubclass(type(lambda x: x), Callable)) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 422 | |
| 423 | def test_eq_hash(self): |
| 424 | self.assertEqual(Callable[[int], int], Callable[[int], int]) |
| 425 | self.assertEqual(len({Callable[[int], int], Callable[[int], int]}), 1) |
| 426 | self.assertNotEqual(Callable[[int], int], Callable[[int], str]) |
| 427 | self.assertNotEqual(Callable[[int], int], Callable[[str], int]) |
| 428 | self.assertNotEqual(Callable[[int], int], Callable[[int, int], int]) |
| 429 | self.assertNotEqual(Callable[[int], int], Callable[[], int]) |
| 430 | self.assertNotEqual(Callable[[int], int], Callable) |
| 431 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 432 | def test_cannot_instantiate(self): |
| 433 | with self.assertRaises(TypeError): |
| 434 | Callable() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 435 | with self.assertRaises(TypeError): |
| 436 | type(Callable)() |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 437 | c = Callable[[int], str] |
| 438 | with self.assertRaises(TypeError): |
| 439 | c() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 440 | with self.assertRaises(TypeError): |
| 441 | type(c)() |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 442 | |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 443 | def test_callable_wrong_forms(self): |
| 444 | with self.assertRaises(TypeError): |
| 445 | Callable[[...], int] |
| 446 | with self.assertRaises(TypeError): |
| 447 | Callable[(), int] |
| 448 | with self.assertRaises(TypeError): |
| 449 | Callable[[()], int] |
| 450 | with self.assertRaises(TypeError): |
| 451 | Callable[[int, 1], 2] |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 452 | with self.assertRaises(TypeError): |
| 453 | Callable[int] |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 454 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 455 | def test_callable_instance_works(self): |
Guido van Rossum | 1b66910 | 2015-09-04 12:15:54 -0700 | [diff] [blame] | 456 | def f(): |
| 457 | pass |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 458 | self.assertIsInstance(f, Callable) |
| 459 | self.assertNotIsInstance(None, Callable) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 460 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 461 | def test_callable_instance_type_error(self): |
Guido van Rossum | 1b66910 | 2015-09-04 12:15:54 -0700 | [diff] [blame] | 462 | def f(): |
| 463 | pass |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 464 | with self.assertRaises(TypeError): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 465 | self.assertIsInstance(f, Callable[[], None]) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 466 | with self.assertRaises(TypeError): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 467 | self.assertIsInstance(f, Callable[[], Any]) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 468 | with self.assertRaises(TypeError): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 469 | self.assertNotIsInstance(None, Callable[[], None]) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 470 | with self.assertRaises(TypeError): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 471 | self.assertNotIsInstance(None, Callable[[], Any]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 472 | |
| 473 | def test_repr(self): |
| 474 | ct0 = Callable[[], bool] |
| 475 | self.assertEqual(repr(ct0), 'typing.Callable[[], bool]') |
| 476 | ct2 = Callable[[str, float], int] |
| 477 | self.assertEqual(repr(ct2), 'typing.Callable[[str, float], int]') |
| 478 | ctv = Callable[..., str] |
| 479 | self.assertEqual(repr(ctv), 'typing.Callable[..., str]') |
| 480 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 481 | def test_callable_with_ellipsis(self): |
| 482 | |
| 483 | def foo(a: Callable[..., T]): |
| 484 | pass |
| 485 | |
| 486 | self.assertEqual(get_type_hints(foo, globals(), locals()), |
| 487 | {'a': Callable[..., T]}) |
| 488 | |
Guido van Rossum | efa798d | 2016-08-23 11:01:50 -0700 | [diff] [blame] | 489 | def test_ellipsis_in_generic(self): |
| 490 | # Shouldn't crash; see https://github.com/python/typing/issues/259 |
| 491 | typing.List[Callable[..., str]] |
| 492 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 493 | |
| 494 | XK = TypeVar('XK', str, bytes) |
| 495 | XV = TypeVar('XV') |
| 496 | |
| 497 | |
| 498 | class SimpleMapping(Generic[XK, XV]): |
| 499 | |
| 500 | def __getitem__(self, key: XK) -> XV: |
| 501 | ... |
| 502 | |
| 503 | def __setitem__(self, key: XK, value: XV): |
| 504 | ... |
| 505 | |
| 506 | def get(self, key: XK, default: XV = None) -> XV: |
| 507 | ... |
| 508 | |
| 509 | |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 510 | class MySimpleMapping(SimpleMapping[XK, XV]): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 511 | |
| 512 | def __init__(self): |
| 513 | self.store = {} |
| 514 | |
| 515 | def __getitem__(self, key: str): |
| 516 | return self.store[key] |
| 517 | |
| 518 | def __setitem__(self, key: str, value): |
| 519 | self.store[key] = value |
| 520 | |
| 521 | def get(self, key: str, default=None): |
| 522 | try: |
| 523 | return self.store[key] |
| 524 | except KeyError: |
| 525 | return default |
| 526 | |
| 527 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 528 | class ProtocolTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 529 | |
| 530 | def test_supports_int(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 531 | self.assertIsSubclass(int, typing.SupportsInt) |
| 532 | self.assertNotIsSubclass(str, typing.SupportsInt) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 533 | |
| 534 | def test_supports_float(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 535 | self.assertIsSubclass(float, typing.SupportsFloat) |
| 536 | self.assertNotIsSubclass(str, typing.SupportsFloat) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 537 | |
| 538 | def test_supports_complex(self): |
| 539 | |
| 540 | # Note: complex itself doesn't have __complex__. |
| 541 | class C: |
| 542 | def __complex__(self): |
| 543 | return 0j |
| 544 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 545 | self.assertIsSubclass(C, typing.SupportsComplex) |
| 546 | self.assertNotIsSubclass(str, typing.SupportsComplex) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 547 | |
| 548 | def test_supports_bytes(self): |
| 549 | |
| 550 | # Note: bytes itself doesn't have __bytes__. |
| 551 | class B: |
| 552 | def __bytes__(self): |
| 553 | return b'' |
| 554 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 555 | self.assertIsSubclass(B, typing.SupportsBytes) |
| 556 | self.assertNotIsSubclass(str, typing.SupportsBytes) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 557 | |
| 558 | def test_supports_abs(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 559 | self.assertIsSubclass(float, typing.SupportsAbs) |
| 560 | self.assertIsSubclass(int, typing.SupportsAbs) |
| 561 | self.assertNotIsSubclass(str, typing.SupportsAbs) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 562 | |
| 563 | def test_supports_round(self): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 564 | issubclass(float, typing.SupportsRound) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 565 | self.assertIsSubclass(float, typing.SupportsRound) |
| 566 | self.assertIsSubclass(int, typing.SupportsRound) |
| 567 | self.assertNotIsSubclass(str, typing.SupportsRound) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 568 | |
| 569 | def test_reversible(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 570 | self.assertIsSubclass(list, typing.Reversible) |
| 571 | self.assertNotIsSubclass(int, typing.Reversible) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 572 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 573 | def test_protocol_instance_type_error(self): |
| 574 | with self.assertRaises(TypeError): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 575 | isinstance(0, typing.SupportsAbs) |
Guido van Rossum | ca4b252 | 2016-11-19 10:32:41 -0800 | [diff] [blame] | 576 | class C1(typing.SupportsInt): |
| 577 | def __int__(self) -> int: |
| 578 | return 42 |
| 579 | class C2(C1): |
| 580 | pass |
| 581 | c = C2() |
| 582 | self.assertIsInstance(c, C1) |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 583 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 584 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 585 | class GenericTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 586 | |
| 587 | def test_basics(self): |
| 588 | X = SimpleMapping[str, Any] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 589 | self.assertEqual(X.__parameters__, ()) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 590 | with self.assertRaises(TypeError): |
| 591 | X[str] |
| 592 | with self.assertRaises(TypeError): |
| 593 | X[str, str] |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 594 | Y = SimpleMapping[XK, str] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 595 | self.assertEqual(Y.__parameters__, (XK,)) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 596 | Y[str] |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 597 | with self.assertRaises(TypeError): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 598 | Y[str, str] |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 599 | self.assertIsSubclass(SimpleMapping[str, int], SimpleMapping) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 600 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 601 | def test_generic_errors(self): |
Guido van Rossum | 62fe1bb | 2016-10-29 16:05:26 -0700 | [diff] [blame] | 602 | T = TypeVar('T') |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 603 | S = TypeVar('S') |
Guido van Rossum | 62fe1bb | 2016-10-29 16:05:26 -0700 | [diff] [blame] | 604 | with self.assertRaises(TypeError): |
| 605 | Generic[T]() |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 606 | with self.assertRaises(TypeError): |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 607 | Generic[T][T] |
| 608 | with self.assertRaises(TypeError): |
| 609 | Generic[T][S] |
| 610 | with self.assertRaises(TypeError): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 611 | isinstance([], List[int]) |
| 612 | with self.assertRaises(TypeError): |
| 613 | issubclass(list, List[int]) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 614 | with self.assertRaises(TypeError): |
| 615 | class NewGeneric(Generic): ... |
| 616 | with self.assertRaises(TypeError): |
| 617 | class MyGeneric(Generic[T], Generic[S]): ... |
| 618 | with self.assertRaises(TypeError): |
| 619 | class MyGeneric(List[T], Generic[S]): ... |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 620 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 621 | def test_init(self): |
| 622 | T = TypeVar('T') |
| 623 | S = TypeVar('S') |
| 624 | with self.assertRaises(TypeError): |
| 625 | Generic[T, T] |
| 626 | with self.assertRaises(TypeError): |
| 627 | Generic[T, S, T] |
| 628 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 629 | def test_repr(self): |
| 630 | self.assertEqual(repr(SimpleMapping), |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 631 | __name__ + '.' + 'SimpleMapping') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 632 | self.assertEqual(repr(MySimpleMapping), |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 633 | __name__ + '.' + 'MySimpleMapping') |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 634 | |
| 635 | def test_chain_repr(self): |
| 636 | T = TypeVar('T') |
| 637 | S = TypeVar('S') |
| 638 | |
| 639 | class C(Generic[T]): |
| 640 | pass |
| 641 | |
| 642 | X = C[Tuple[S, T]] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 643 | self.assertEqual(X, C[Tuple[S, T]]) |
| 644 | self.assertNotEqual(X, C[Tuple[T, S]]) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 645 | |
| 646 | Y = X[T, int] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 647 | self.assertEqual(Y, X[T, int]) |
| 648 | self.assertNotEqual(Y, X[S, int]) |
| 649 | self.assertNotEqual(Y, X[T, str]) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 650 | |
| 651 | Z = Y[str] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 652 | self.assertEqual(Z, Y[str]) |
| 653 | self.assertNotEqual(Z, Y[int]) |
| 654 | self.assertNotEqual(Z, Y[T]) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 655 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 656 | self.assertTrue(str(Z).endswith( |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 657 | '.C[typing.Tuple[str, int]]')) |
| 658 | |
| 659 | def test_new_repr(self): |
| 660 | T = TypeVar('T') |
| 661 | U = TypeVar('U', covariant=True) |
| 662 | S = TypeVar('S') |
| 663 | |
| 664 | self.assertEqual(repr(List), 'typing.List') |
| 665 | self.assertEqual(repr(List[T]), 'typing.List[~T]') |
| 666 | self.assertEqual(repr(List[U]), 'typing.List[+U]') |
| 667 | self.assertEqual(repr(List[S][T][int]), 'typing.List[int]') |
| 668 | self.assertEqual(repr(List[int]), 'typing.List[int]') |
| 669 | |
| 670 | def test_new_repr_complex(self): |
| 671 | T = TypeVar('T') |
| 672 | TS = TypeVar('TS') |
| 673 | |
| 674 | self.assertEqual(repr(typing.Mapping[T, TS][TS, T]), 'typing.Mapping[~TS, ~T]') |
| 675 | self.assertEqual(repr(List[Tuple[T, TS]][int, T]), |
| 676 | 'typing.List[typing.Tuple[int, ~T]]') |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 677 | self.assertEqual( |
| 678 | repr(List[Tuple[T, T]][List[int]]), |
| 679 | 'typing.List[typing.Tuple[typing.List[int], typing.List[int]]]' |
| 680 | ) |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 681 | |
| 682 | def test_new_repr_bare(self): |
| 683 | T = TypeVar('T') |
| 684 | self.assertEqual(repr(Generic[T]), 'typing.Generic[~T]') |
| 685 | self.assertEqual(repr(typing._Protocol[T]), 'typing.Protocol[~T]') |
| 686 | class C(typing.Dict[Any, Any]): ... |
| 687 | # this line should just work |
| 688 | repr(C.__mro__) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 689 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 690 | def test_dict(self): |
| 691 | T = TypeVar('T') |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 692 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 693 | class B(Generic[T]): |
| 694 | pass |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 695 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 696 | b = B() |
| 697 | b.foo = 42 |
| 698 | self.assertEqual(b.__dict__, {'foo': 42}) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 699 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 700 | class C(B[int]): |
| 701 | pass |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 702 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 703 | c = C() |
| 704 | c.bar = 'abc' |
| 705 | self.assertEqual(c.__dict__, {'bar': 'abc'}) |
| 706 | |
Ivan Levkivskyi | abb3b8a | 2017-02-24 04:03:28 +0100 | [diff] [blame] | 707 | def test_subscripted_generics_as_proxies(self): |
| 708 | T = TypeVar('T') |
| 709 | class C(Generic[T]): |
| 710 | x = 'def' |
| 711 | self.assertEqual(C[int].x, 'def') |
| 712 | self.assertEqual(C[C[int]].x, 'def') |
| 713 | C[C[int]].x = 'changed' |
| 714 | self.assertEqual(C.x, 'changed') |
| 715 | self.assertEqual(C[str].x, 'changed') |
| 716 | C[List[str]].z = 'new' |
| 717 | self.assertEqual(C.z, 'new') |
| 718 | self.assertEqual(C[Tuple[int]].z, 'new') |
| 719 | |
| 720 | self.assertEqual(C().x, 'changed') |
| 721 | self.assertEqual(C[Tuple[str]]().z, 'new') |
| 722 | |
| 723 | class D(C[T]): |
| 724 | pass |
| 725 | self.assertEqual(D[int].x, 'changed') |
| 726 | self.assertEqual(D.z, 'new') |
| 727 | D.z = 'from derived z' |
| 728 | D[int].x = 'from derived x' |
| 729 | self.assertEqual(C.x, 'changed') |
| 730 | self.assertEqual(C[int].z, 'new') |
| 731 | self.assertEqual(D.x, 'from derived x') |
| 732 | self.assertEqual(D[str].z, 'from derived z') |
| 733 | |
Ivan Levkivskyi | 365cb5b | 2017-02-24 18:28:26 +0100 | [diff] [blame] | 734 | def test_abc_registry_kept(self): |
| 735 | T = TypeVar('T') |
| 736 | class C(Generic[T]): ... |
| 737 | C.register(int) |
| 738 | self.assertIsInstance(1, C) |
| 739 | C[int] |
| 740 | self.assertIsInstance(1, C) |
| 741 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 742 | def test_false_subclasses(self): |
| 743 | class MyMapping(MutableMapping[str, str]): pass |
| 744 | self.assertNotIsInstance({}, MyMapping) |
| 745 | self.assertNotIsSubclass(dict, MyMapping) |
| 746 | |
Guido van Rossum | b47c9d2 | 2016-10-03 08:40:50 -0700 | [diff] [blame] | 747 | def test_abc_bases(self): |
| 748 | class MM(MutableMapping[str, str]): |
| 749 | def __getitem__(self, k): |
| 750 | return None |
| 751 | def __setitem__(self, k, v): |
| 752 | pass |
| 753 | def __delitem__(self, k): |
| 754 | pass |
| 755 | def __iter__(self): |
| 756 | return iter(()) |
| 757 | def __len__(self): |
| 758 | return 0 |
| 759 | # this should just work |
| 760 | MM().update() |
| 761 | self.assertIsInstance(MM(), collections_abc.MutableMapping) |
| 762 | self.assertIsInstance(MM(), MutableMapping) |
| 763 | self.assertNotIsInstance(MM(), List) |
| 764 | self.assertNotIsInstance({}, MM) |
| 765 | |
| 766 | def test_multiple_bases(self): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 767 | class MM1(MutableMapping[str, str], collections_abc.MutableMapping): |
Guido van Rossum | b47c9d2 | 2016-10-03 08:40:50 -0700 | [diff] [blame] | 768 | pass |
| 769 | with self.assertRaises(TypeError): |
| 770 | # consistent MRO not possible |
| 771 | class MM2(collections_abc.MutableMapping, MutableMapping[str, str]): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 772 | pass |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 773 | |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 774 | def test_orig_bases(self): |
| 775 | T = TypeVar('T') |
| 776 | class C(typing.Dict[str, T]): ... |
| 777 | self.assertEqual(C.__orig_bases__, (typing.Dict[str, T],)) |
| 778 | |
| 779 | def test_naive_runtime_checks(self): |
| 780 | def naive_dict_check(obj, tp): |
| 781 | # Check if a dictionary conforms to Dict type |
| 782 | if len(tp.__parameters__) > 0: |
| 783 | raise NotImplementedError |
| 784 | if tp.__args__: |
| 785 | KT, VT = tp.__args__ |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 786 | return all( |
| 787 | isinstance(k, KT) and isinstance(v, VT) |
| 788 | for k, v in obj.items() |
| 789 | ) |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 790 | self.assertTrue(naive_dict_check({'x': 1}, typing.Dict[str, int])) |
| 791 | self.assertFalse(naive_dict_check({1: 'x'}, typing.Dict[str, int])) |
| 792 | with self.assertRaises(NotImplementedError): |
| 793 | naive_dict_check({1: 'x'}, typing.Dict[str, T]) |
| 794 | |
| 795 | def naive_generic_check(obj, tp): |
| 796 | # Check if an instance conforms to the generic class |
| 797 | if not hasattr(obj, '__orig_class__'): |
| 798 | raise NotImplementedError |
| 799 | return obj.__orig_class__ == tp |
| 800 | class Node(Generic[T]): ... |
| 801 | self.assertTrue(naive_generic_check(Node[int](), Node[int])) |
| 802 | self.assertFalse(naive_generic_check(Node[str](), Node[int])) |
| 803 | self.assertFalse(naive_generic_check(Node[str](), List)) |
| 804 | with self.assertRaises(NotImplementedError): |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 805 | naive_generic_check([1, 2, 3], Node[int]) |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 806 | |
| 807 | def naive_list_base_check(obj, tp): |
| 808 | # Check if list conforms to a List subclass |
| 809 | return all(isinstance(x, tp.__orig_bases__[0].__args__[0]) |
| 810 | for x in obj) |
| 811 | class C(List[int]): ... |
| 812 | self.assertTrue(naive_list_base_check([1, 2, 3], C)) |
| 813 | self.assertFalse(naive_list_base_check(['a', 'b'], C)) |
| 814 | |
| 815 | def test_multi_subscr_base(self): |
| 816 | T = TypeVar('T') |
| 817 | U = TypeVar('U') |
| 818 | V = TypeVar('V') |
| 819 | class C(List[T][U][V]): ... |
| 820 | class D(C, List[T][U][V]): ... |
| 821 | self.assertEqual(C.__parameters__, (V,)) |
| 822 | self.assertEqual(D.__parameters__, (V,)) |
| 823 | self.assertEqual(C[int].__parameters__, ()) |
| 824 | self.assertEqual(D[int].__parameters__, ()) |
| 825 | self.assertEqual(C[int].__args__, (int,)) |
| 826 | self.assertEqual(D[int].__args__, (int,)) |
| 827 | self.assertEqual(C.__bases__, (List,)) |
| 828 | self.assertEqual(D.__bases__, (C, List)) |
| 829 | self.assertEqual(C.__orig_bases__, (List[T][U][V],)) |
| 830 | self.assertEqual(D.__orig_bases__, (C, List[T][U][V])) |
| 831 | |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 832 | def test_subscript_meta(self): |
| 833 | T = TypeVar('T') |
| 834 | self.assertEqual(Type[GenericMeta], Type[GenericMeta]) |
| 835 | self.assertEqual(Union[T, int][GenericMeta], Union[GenericMeta, int]) |
| 836 | self.assertEqual(Callable[..., GenericMeta].__args__, (Ellipsis, GenericMeta)) |
| 837 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 838 | def test_generic_hashes(self): |
| 839 | try: |
| 840 | from test import mod_generics_cache |
| 841 | except ImportError: # for Python 3.4 and previous versions |
| 842 | import mod_generics_cache |
| 843 | class A(Generic[T]): |
| 844 | ... |
| 845 | |
| 846 | class B(Generic[T]): |
| 847 | class A(Generic[T]): |
| 848 | ... |
| 849 | |
| 850 | self.assertEqual(A, A) |
| 851 | self.assertEqual(mod_generics_cache.A[str], mod_generics_cache.A[str]) |
| 852 | self.assertEqual(B.A, B.A) |
| 853 | self.assertEqual(mod_generics_cache.B.A[B.A[str]], |
| 854 | mod_generics_cache.B.A[B.A[str]]) |
| 855 | |
| 856 | self.assertNotEqual(A, B.A) |
| 857 | self.assertNotEqual(A, mod_generics_cache.A) |
| 858 | self.assertNotEqual(A, mod_generics_cache.B.A) |
| 859 | self.assertNotEqual(B.A, mod_generics_cache.A) |
| 860 | self.assertNotEqual(B.A, mod_generics_cache.B.A) |
| 861 | |
| 862 | self.assertNotEqual(A[str], B.A[str]) |
| 863 | self.assertNotEqual(A[List[Any]], B.A[List[Any]]) |
| 864 | self.assertNotEqual(A[str], mod_generics_cache.A[str]) |
| 865 | self.assertNotEqual(A[str], mod_generics_cache.B.A[str]) |
| 866 | self.assertNotEqual(B.A[int], mod_generics_cache.A[int]) |
| 867 | self.assertNotEqual(B.A[List[Any]], mod_generics_cache.B.A[List[Any]]) |
| 868 | |
| 869 | self.assertNotEqual(Tuple[A[str]], Tuple[B.A[str]]) |
| 870 | self.assertNotEqual(Tuple[A[List[Any]]], Tuple[B.A[List[Any]]]) |
| 871 | self.assertNotEqual(Union[str, A[str]], Union[str, mod_generics_cache.A[str]]) |
| 872 | self.assertNotEqual(Union[A[str], A[str]], |
| 873 | Union[A[str], mod_generics_cache.A[str]]) |
| 874 | self.assertNotEqual(typing.FrozenSet[A[str]], |
| 875 | typing.FrozenSet[mod_generics_cache.B.A[str]]) |
| 876 | |
| 877 | if sys.version_info[:2] > (3, 2): |
| 878 | self.assertTrue(repr(Tuple[A[str]]).endswith('<locals>.A[str]]')) |
| 879 | self.assertTrue(repr(Tuple[B.A[str]]).endswith('<locals>.B.A[str]]')) |
| 880 | self.assertTrue(repr(Tuple[mod_generics_cache.A[str]]) |
| 881 | .endswith('mod_generics_cache.A[str]]')) |
| 882 | self.assertTrue(repr(Tuple[mod_generics_cache.B.A[str]]) |
| 883 | .endswith('mod_generics_cache.B.A[str]]')) |
| 884 | |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 885 | def test_extended_generic_rules_eq(self): |
| 886 | T = TypeVar('T') |
| 887 | U = TypeVar('U') |
| 888 | self.assertEqual(Tuple[T, T][int], Tuple[int, int]) |
| 889 | self.assertEqual(typing.Iterable[Tuple[T, T]][T], typing.Iterable[Tuple[T, T]]) |
| 890 | with self.assertRaises(TypeError): |
| 891 | Tuple[T, int][()] |
| 892 | with self.assertRaises(TypeError): |
| 893 | Tuple[T, U][T, ...] |
| 894 | |
| 895 | self.assertEqual(Union[T, int][int], int) |
| 896 | self.assertEqual(Union[T, U][int, Union[int, str]], Union[int, str]) |
| 897 | class Base: ... |
| 898 | class Derived(Base): ... |
| 899 | self.assertEqual(Union[T, Base][Derived], Base) |
| 900 | with self.assertRaises(TypeError): |
| 901 | Union[T, int][1] |
| 902 | |
| 903 | self.assertEqual(Callable[[T], T][KT], Callable[[KT], KT]) |
| 904 | self.assertEqual(Callable[..., List[T]][int], Callable[..., List[int]]) |
| 905 | with self.assertRaises(TypeError): |
| 906 | Callable[[T], U][..., int] |
| 907 | with self.assertRaises(TypeError): |
| 908 | Callable[[T], U][[], int] |
| 909 | |
| 910 | def test_extended_generic_rules_repr(self): |
| 911 | T = TypeVar('T') |
| 912 | self.assertEqual(repr(Union[Tuple, Callable]).replace('typing.', ''), |
| 913 | 'Union[Tuple, Callable]') |
| 914 | self.assertEqual(repr(Union[Tuple, Tuple[int]]).replace('typing.', ''), |
| 915 | 'Tuple') |
| 916 | self.assertEqual(repr(Callable[..., Optional[T]][int]).replace('typing.', ''), |
| 917 | 'Callable[..., Union[int, NoneType]]') |
| 918 | self.assertEqual(repr(Callable[[], List[T]][int]).replace('typing.', ''), |
| 919 | 'Callable[[], List[int]]') |
| 920 | |
Guido van Rossum | f9099de | 2016-11-09 13:18:59 -0800 | [diff] [blame] | 921 | def test_generic_forward_ref(self): |
| 922 | def foobar(x: List[List['CC']]): ... |
| 923 | class CC: ... |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 924 | self.assertEqual( |
| 925 | get_type_hints(foobar, globals(), locals()), |
| 926 | {'x': List[List[CC]]} |
| 927 | ) |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 928 | T = TypeVar('T') |
Guido van Rossum | ca4b252 | 2016-11-19 10:32:41 -0800 | [diff] [blame] | 929 | AT = Tuple[T, ...] |
| 930 | def barfoo(x: AT): ... |
| 931 | self.assertIs(get_type_hints(barfoo, globals(), locals())['x'], AT) |
| 932 | CT = Callable[..., List[T]] |
| 933 | def barfoo2(x: CT): ... |
| 934 | self.assertIs(get_type_hints(barfoo2, globals(), locals())['x'], CT) |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 935 | |
| 936 | def test_extended_generic_rules_subclassing(self): |
| 937 | class T1(Tuple[T, KT]): ... |
| 938 | class T2(Tuple[T, ...]): ... |
| 939 | class C1(Callable[[T], T]): ... |
| 940 | class C2(Callable[..., int]): |
| 941 | def __call__(self): |
| 942 | return None |
| 943 | |
| 944 | self.assertEqual(T1.__parameters__, (T, KT)) |
| 945 | self.assertEqual(T1[int, str].__args__, (int, str)) |
| 946 | self.assertEqual(T1[int, T].__origin__, T1) |
| 947 | |
| 948 | self.assertEqual(T2.__parameters__, (T,)) |
| 949 | with self.assertRaises(TypeError): |
| 950 | T1[int] |
| 951 | with self.assertRaises(TypeError): |
| 952 | T2[int, str] |
| 953 | |
| 954 | self.assertEqual(repr(C1[int]).split('.')[-1], 'C1[int]') |
| 955 | self.assertEqual(C2.__parameters__, ()) |
| 956 | self.assertIsInstance(C2(), collections_abc.Callable) |
| 957 | self.assertIsSubclass(C2, collections_abc.Callable) |
| 958 | self.assertIsSubclass(C1, collections_abc.Callable) |
| 959 | self.assertIsInstance(T1(), tuple) |
| 960 | self.assertIsSubclass(T2, tuple) |
| 961 | self.assertIsSubclass(Tuple[int, ...], typing.Sequence) |
| 962 | self.assertIsSubclass(Tuple[int, ...], typing.Iterable) |
| 963 | |
| 964 | def test_fail_with_bare_union(self): |
| 965 | with self.assertRaises(TypeError): |
| 966 | List[Union] |
| 967 | with self.assertRaises(TypeError): |
| 968 | Tuple[Optional] |
| 969 | with self.assertRaises(TypeError): |
| 970 | ClassVar[ClassVar] |
| 971 | with self.assertRaises(TypeError): |
| 972 | List[ClassVar[int]] |
| 973 | |
| 974 | def test_fail_with_bare_generic(self): |
| 975 | T = TypeVar('T') |
| 976 | with self.assertRaises(TypeError): |
| 977 | List[Generic] |
| 978 | with self.assertRaises(TypeError): |
| 979 | Tuple[Generic[T]] |
| 980 | with self.assertRaises(TypeError): |
| 981 | List[typing._Protocol] |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 982 | with self.assertRaises(TypeError): |
| 983 | isinstance(1, Generic) |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 984 | |
| 985 | def test_type_erasure_special(self): |
| 986 | T = TypeVar('T') |
Guido van Rossum | ca4b252 | 2016-11-19 10:32:41 -0800 | [diff] [blame] | 987 | # this is the only test that checks type caching |
| 988 | self.clear_caches() |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 989 | class MyTup(Tuple[T, T]): ... |
| 990 | self.assertIs(MyTup[int]().__class__, MyTup) |
| 991 | self.assertIs(MyTup[int]().__orig_class__, MyTup[int]) |
| 992 | class MyCall(Callable[..., T]): |
| 993 | def __call__(self): return None |
| 994 | self.assertIs(MyCall[T]().__class__, MyCall) |
| 995 | self.assertIs(MyCall[T]().__orig_class__, MyCall[T]) |
| 996 | class MyDict(typing.Dict[T, T]): ... |
| 997 | self.assertIs(MyDict[int]().__class__, MyDict) |
| 998 | self.assertIs(MyDict[int]().__orig_class__, MyDict[int]) |
| 999 | class MyDef(typing.DefaultDict[str, T]): ... |
| 1000 | self.assertIs(MyDef[int]().__class__, MyDef) |
| 1001 | self.assertIs(MyDef[int]().__orig_class__, MyDef[int]) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1002 | # ChainMap was added in 3.3 |
| 1003 | if sys.version_info >= (3, 3): |
| 1004 | class MyChain(typing.ChainMap[str, T]): ... |
| 1005 | self.assertIs(MyChain[int]().__class__, MyChain) |
| 1006 | self.assertIs(MyChain[int]().__orig_class__, MyChain[int]) |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 1007 | |
| 1008 | def test_all_repr_eq_any(self): |
| 1009 | objs = (getattr(typing, el) for el in typing.__all__) |
| 1010 | for obj in objs: |
| 1011 | self.assertNotEqual(repr(obj), '') |
| 1012 | self.assertEqual(obj, obj) |
| 1013 | if getattr(obj, '__parameters__', None) and len(obj.__parameters__) == 1: |
| 1014 | self.assertEqual(obj[Any].__args__, (Any,)) |
| 1015 | if isinstance(obj, type): |
| 1016 | for base in obj.__mro__: |
| 1017 | self.assertNotEqual(repr(base), '') |
| 1018 | self.assertEqual(base, base) |
| 1019 | |
| 1020 | def test_substitution_helper(self): |
| 1021 | T = TypeVar('T') |
| 1022 | KT = TypeVar('KT') |
| 1023 | VT = TypeVar('VT') |
| 1024 | class Map(Generic[KT, VT]): |
| 1025 | def meth(self, k: KT, v: VT): ... |
| 1026 | StrMap = Map[str, T] |
| 1027 | obj = StrMap[int]() |
| 1028 | |
| 1029 | new_args = typing._subs_tree(obj.__orig_class__) |
| 1030 | new_annots = {k: typing._replace_arg(v, type(obj).__parameters__, new_args) |
| 1031 | for k, v in obj.meth.__annotations__.items()} |
| 1032 | |
| 1033 | self.assertEqual(new_annots, {'k': str, 'v': int}) |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 1034 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1035 | def test_pickle(self): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1036 | global C # pickle wants to reference the class by name |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1037 | T = TypeVar('T') |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1038 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1039 | class B(Generic[T]): |
| 1040 | pass |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1041 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1042 | class C(B[int]): |
| 1043 | pass |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1044 | |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1045 | c = C() |
| 1046 | c.foo = 42 |
| 1047 | c.bar = 'abc' |
Serhiy Storchaka | 6d9e923 | 2015-11-20 18:33:02 +0200 | [diff] [blame] | 1048 | for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
| 1049 | z = pickle.dumps(c, proto) |
| 1050 | x = pickle.loads(z) |
| 1051 | self.assertEqual(x.foo, 42) |
| 1052 | self.assertEqual(x.bar, 'abc') |
| 1053 | self.assertEqual(x.__dict__, {'foo': 42, 'bar': 'abc'}) |
Guido van Rossum | b7dedc8 | 2016-10-29 12:44:29 -0700 | [diff] [blame] | 1054 | simples = [Any, Union, Tuple, Callable, ClassVar, List, typing.Iterable] |
| 1055 | for s in simples: |
| 1056 | for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
| 1057 | z = pickle.dumps(s, proto) |
| 1058 | x = pickle.loads(z) |
| 1059 | self.assertEqual(s, x) |
| 1060 | |
| 1061 | def test_copy_and_deepcopy(self): |
| 1062 | T = TypeVar('T') |
| 1063 | class Node(Generic[T]): ... |
| 1064 | things = [Union[T, int], Tuple[T, int], Callable[..., T], Callable[[int], int], |
| 1065 | Tuple[Any, Any], Node[T], Node[int], Node[Any], typing.Iterable[T], |
| 1066 | typing.Iterable[Any], typing.Iterable[int], typing.Dict[int, str], |
| 1067 | typing.Dict[T, Any], ClassVar[int], ClassVar[List[T]], Tuple['T', 'T'], |
| 1068 | Union['T', int], List['T'], typing.Mapping['T', int]] |
| 1069 | for t in things + [Any]: |
| 1070 | self.assertEqual(t, copy(t)) |
| 1071 | self.assertEqual(t, deepcopy(t)) |
Guido van Rossum | bb7c57c | 2015-11-18 21:12:58 -0800 | [diff] [blame] | 1072 | |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 1073 | def test_weakref_all(self): |
| 1074 | T = TypeVar('T') |
| 1075 | things = [Any, Union[T, int], Callable[..., T], Tuple[Any, Any], |
| 1076 | Optional[List[int]], typing.Mapping[int, str], |
| 1077 | typing.re.Match[bytes], typing.Iterable['whatever']] |
| 1078 | for t in things: |
| 1079 | self.assertEqual(weakref.ref(t)(), t) |
| 1080 | |
Guido van Rossum | 61f0a02 | 2016-11-29 09:46:21 -0800 | [diff] [blame] | 1081 | def test_parameterized_slots(self): |
| 1082 | T = TypeVar('T') |
| 1083 | class C(Generic[T]): |
| 1084 | __slots__ = ('potato',) |
| 1085 | |
| 1086 | c = C() |
| 1087 | c_int = C[int]() |
| 1088 | self.assertEqual(C.__slots__, C[str].__slots__) |
| 1089 | |
| 1090 | c.potato = 0 |
| 1091 | c_int.potato = 0 |
| 1092 | with self.assertRaises(AttributeError): |
| 1093 | c.tomato = 0 |
| 1094 | with self.assertRaises(AttributeError): |
| 1095 | c_int.tomato = 0 |
| 1096 | |
| 1097 | def foo(x: C['C']): ... |
| 1098 | self.assertEqual(get_type_hints(foo, globals(), locals())['x'], C[C]) |
| 1099 | self.assertEqual(get_type_hints(foo, globals(), locals())['x'].__slots__, |
| 1100 | C.__slots__) |
| 1101 | self.assertEqual(copy(C[int]), deepcopy(C[int])) |
| 1102 | |
| 1103 | def test_parameterized_slots_dict(self): |
| 1104 | T = TypeVar('T') |
| 1105 | class D(Generic[T]): |
| 1106 | __slots__ = {'banana': 42} |
| 1107 | |
| 1108 | d = D() |
| 1109 | d_int = D[int]() |
| 1110 | self.assertEqual(D.__slots__, D[str].__slots__) |
| 1111 | |
| 1112 | d.banana = 'yes' |
| 1113 | d_int.banana = 'yes' |
| 1114 | with self.assertRaises(AttributeError): |
| 1115 | d.foobar = 'no' |
| 1116 | with self.assertRaises(AttributeError): |
| 1117 | d_int.foobar = 'no' |
| 1118 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1119 | def test_errors(self): |
| 1120 | with self.assertRaises(TypeError): |
| 1121 | B = SimpleMapping[XK, Any] |
| 1122 | |
| 1123 | class C(Generic[B]): |
| 1124 | pass |
| 1125 | |
| 1126 | def test_repr_2(self): |
| 1127 | PY32 = sys.version_info[:2] < (3, 3) |
| 1128 | |
| 1129 | class C(Generic[T]): |
| 1130 | pass |
| 1131 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1132 | self.assertEqual(C.__module__, __name__) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1133 | if not PY32: |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1134 | self.assertEqual(C.__qualname__, |
| 1135 | 'GenericTests.test_repr_2.<locals>.C') |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 1136 | self.assertEqual(repr(C).split('.')[-1], 'C') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1137 | X = C[int] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1138 | self.assertEqual(X.__module__, __name__) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1139 | if not PY32: |
Guido van Rossum | 5fc25a8 | 2016-10-29 08:54:56 -0700 | [diff] [blame] | 1140 | self.assertTrue(X.__qualname__.endswith('.<locals>.C')) |
Guido van Rossum | 7ef22d6 | 2016-10-21 14:27:58 -0700 | [diff] [blame] | 1141 | self.assertEqual(repr(X).split('.')[-1], 'C[int]') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1142 | |
| 1143 | class Y(C[int]): |
| 1144 | pass |
| 1145 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1146 | self.assertEqual(Y.__module__, __name__) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1147 | if not PY32: |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1148 | self.assertEqual(Y.__qualname__, |
| 1149 | 'GenericTests.test_repr_2.<locals>.Y') |
| 1150 | self.assertEqual(repr(Y).split('.')[-1], 'Y') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1151 | |
| 1152 | def test_eq_1(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1153 | self.assertEqual(Generic, Generic) |
| 1154 | self.assertEqual(Generic[T], Generic[T]) |
| 1155 | self.assertNotEqual(Generic[KT], Generic[VT]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1156 | |
| 1157 | def test_eq_2(self): |
| 1158 | |
| 1159 | class A(Generic[T]): |
| 1160 | pass |
| 1161 | |
| 1162 | class B(Generic[T]): |
| 1163 | pass |
| 1164 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1165 | self.assertEqual(A, A) |
| 1166 | self.assertNotEqual(A, B) |
| 1167 | self.assertEqual(A[T], A[T]) |
| 1168 | self.assertNotEqual(A[T], B[T]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1169 | |
| 1170 | def test_multiple_inheritance(self): |
| 1171 | |
| 1172 | class A(Generic[T, VT]): |
| 1173 | pass |
| 1174 | |
| 1175 | class B(Generic[KT, T]): |
| 1176 | pass |
| 1177 | |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1178 | class C(A[T, VT], Generic[VT, T, KT], B[KT, T]): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1179 | pass |
| 1180 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1181 | self.assertEqual(C.__parameters__, (VT, T, KT)) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1182 | |
| 1183 | def test_nested(self): |
| 1184 | |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1185 | G = Generic |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1186 | |
| 1187 | class Visitor(G[T]): |
| 1188 | |
| 1189 | a = None |
| 1190 | |
| 1191 | def set(self, a: T): |
| 1192 | self.a = a |
| 1193 | |
| 1194 | def get(self): |
| 1195 | return self.a |
| 1196 | |
| 1197 | def visit(self) -> T: |
| 1198 | return self.a |
| 1199 | |
| 1200 | V = Visitor[typing.List[int]] |
| 1201 | |
| 1202 | class IntListVisitor(V): |
| 1203 | |
| 1204 | def append(self, x: int): |
| 1205 | self.a.append(x) |
| 1206 | |
| 1207 | a = IntListVisitor() |
| 1208 | a.set([]) |
| 1209 | a.append(1) |
| 1210 | a.append(42) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1211 | self.assertEqual(a.get(), [1, 42]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1212 | |
| 1213 | def test_type_erasure(self): |
| 1214 | T = TypeVar('T') |
| 1215 | |
| 1216 | class Node(Generic[T]): |
Guido van Rossum | 1b66910 | 2015-09-04 12:15:54 -0700 | [diff] [blame] | 1217 | def __init__(self, label: T, |
| 1218 | left: 'Node[T]' = None, |
| 1219 | right: 'Node[T]' = None): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1220 | self.label = label # type: T |
| 1221 | self.left = left # type: Optional[Node[T]] |
| 1222 | self.right = right # type: Optional[Node[T]] |
| 1223 | |
| 1224 | def foo(x: T): |
| 1225 | a = Node(x) |
| 1226 | b = Node[T](x) |
| 1227 | c = Node[Any](x) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1228 | self.assertIs(type(a), Node) |
| 1229 | self.assertIs(type(b), Node) |
| 1230 | self.assertIs(type(c), Node) |
| 1231 | self.assertEqual(a.label, x) |
| 1232 | self.assertEqual(b.label, x) |
| 1233 | self.assertEqual(c.label, x) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1234 | |
| 1235 | foo(42) |
| 1236 | |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1237 | def test_implicit_any(self): |
| 1238 | T = TypeVar('T') |
| 1239 | |
| 1240 | class C(Generic[T]): |
| 1241 | pass |
| 1242 | |
| 1243 | class D(C): |
| 1244 | pass |
| 1245 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1246 | self.assertEqual(D.__parameters__, ()) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1247 | |
| 1248 | with self.assertRaises(Exception): |
| 1249 | D[int] |
| 1250 | with self.assertRaises(Exception): |
| 1251 | D[Any] |
| 1252 | with self.assertRaises(Exception): |
| 1253 | D[T] |
| 1254 | |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 1255 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1256 | class ClassVarTests(BaseTestCase): |
| 1257 | |
| 1258 | def test_basics(self): |
| 1259 | with self.assertRaises(TypeError): |
| 1260 | ClassVar[1] |
| 1261 | with self.assertRaises(TypeError): |
| 1262 | ClassVar[int, str] |
| 1263 | with self.assertRaises(TypeError): |
| 1264 | ClassVar[int][str] |
| 1265 | |
| 1266 | def test_repr(self): |
| 1267 | self.assertEqual(repr(ClassVar), 'typing.ClassVar') |
| 1268 | cv = ClassVar[int] |
| 1269 | self.assertEqual(repr(cv), 'typing.ClassVar[int]') |
| 1270 | cv = ClassVar[Employee] |
| 1271 | self.assertEqual(repr(cv), 'typing.ClassVar[%s.Employee]' % __name__) |
| 1272 | |
| 1273 | def test_cannot_subclass(self): |
| 1274 | with self.assertRaises(TypeError): |
| 1275 | class C(type(ClassVar)): |
| 1276 | pass |
| 1277 | with self.assertRaises(TypeError): |
| 1278 | class C(type(ClassVar[int])): |
| 1279 | pass |
| 1280 | |
| 1281 | def test_cannot_init(self): |
| 1282 | with self.assertRaises(TypeError): |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 1283 | ClassVar() |
| 1284 | with self.assertRaises(TypeError): |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1285 | type(ClassVar)() |
| 1286 | with self.assertRaises(TypeError): |
| 1287 | type(ClassVar[Optional[int]])() |
| 1288 | |
| 1289 | def test_no_isinstance(self): |
| 1290 | with self.assertRaises(TypeError): |
| 1291 | isinstance(1, ClassVar[int]) |
| 1292 | with self.assertRaises(TypeError): |
| 1293 | issubclass(int, ClassVar) |
| 1294 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1295 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1296 | class CastTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1297 | |
| 1298 | def test_basics(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1299 | self.assertEqual(cast(int, 42), 42) |
| 1300 | self.assertEqual(cast(float, 42), 42) |
| 1301 | self.assertIs(type(cast(float, 42)), int) |
| 1302 | self.assertEqual(cast(Any, 42), 42) |
| 1303 | self.assertEqual(cast(list, 42), 42) |
| 1304 | self.assertEqual(cast(Union[str, float], 42), 42) |
| 1305 | self.assertEqual(cast(AnyStr, 42), 42) |
| 1306 | self.assertEqual(cast(None, 42), 42) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1307 | |
| 1308 | def test_errors(self): |
| 1309 | # Bogus calls are not expected to fail. |
| 1310 | cast(42, 42) |
| 1311 | cast('hello', 42) |
| 1312 | |
| 1313 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1314 | class ForwardRefTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1315 | |
| 1316 | def test_basics(self): |
| 1317 | |
| 1318 | class Node(Generic[T]): |
| 1319 | |
| 1320 | def __init__(self, label: T): |
| 1321 | self.label = label |
| 1322 | self.left = self.right = None |
| 1323 | |
| 1324 | def add_both(self, |
| 1325 | left: 'Optional[Node[T]]', |
| 1326 | right: 'Node[T]' = None, |
| 1327 | stuff: int = None, |
| 1328 | blah=None): |
| 1329 | self.left = left |
| 1330 | self.right = right |
| 1331 | |
| 1332 | def add_left(self, node: Optional['Node[T]']): |
| 1333 | self.add_both(node, None) |
| 1334 | |
| 1335 | def add_right(self, node: 'Node[T]' = None): |
| 1336 | self.add_both(None, node) |
| 1337 | |
| 1338 | t = Node[int] |
| 1339 | both_hints = get_type_hints(t.add_both, globals(), locals()) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1340 | self.assertEqual(both_hints['left'], Optional[Node[T]]) |
| 1341 | self.assertEqual(both_hints['right'], Optional[Node[T]]) |
| 1342 | self.assertEqual(both_hints['left'], both_hints['right']) |
| 1343 | self.assertEqual(both_hints['stuff'], Optional[int]) |
| 1344 | self.assertNotIn('blah', both_hints) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1345 | |
| 1346 | left_hints = get_type_hints(t.add_left, globals(), locals()) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1347 | self.assertEqual(left_hints['node'], Optional[Node[T]]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1348 | |
| 1349 | right_hints = get_type_hints(t.add_right, globals(), locals()) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1350 | self.assertEqual(right_hints['node'], Optional[Node[T]]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1351 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 1352 | def test_forwardref_instance_type_error(self): |
| 1353 | fr = typing._ForwardRef('int') |
| 1354 | with self.assertRaises(TypeError): |
| 1355 | isinstance(42, fr) |
| 1356 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1357 | def test_forwardref_subclass_type_error(self): |
| 1358 | fr = typing._ForwardRef('int') |
| 1359 | with self.assertRaises(TypeError): |
| 1360 | issubclass(int, fr) |
| 1361 | |
| 1362 | def test_forward_equality(self): |
| 1363 | fr = typing._ForwardRef('int') |
| 1364 | self.assertEqual(fr, typing._ForwardRef('int')) |
| 1365 | self.assertNotEqual(List['int'], List[int]) |
| 1366 | |
| 1367 | def test_forward_repr(self): |
| 1368 | self.assertEqual(repr(List['int']), "typing.List[_ForwardRef('int')]") |
| 1369 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1370 | def test_union_forward(self): |
| 1371 | |
| 1372 | def foo(a: Union['T']): |
| 1373 | pass |
| 1374 | |
| 1375 | self.assertEqual(get_type_hints(foo, globals(), locals()), |
| 1376 | {'a': Union[T]}) |
| 1377 | |
| 1378 | def test_tuple_forward(self): |
| 1379 | |
| 1380 | def foo(a: Tuple['T']): |
| 1381 | pass |
| 1382 | |
| 1383 | self.assertEqual(get_type_hints(foo, globals(), locals()), |
| 1384 | {'a': Tuple[T]}) |
| 1385 | |
| 1386 | def test_callable_forward(self): |
| 1387 | |
| 1388 | def foo(a: Callable[['T'], 'T']): |
| 1389 | pass |
| 1390 | |
| 1391 | self.assertEqual(get_type_hints(foo, globals(), locals()), |
| 1392 | {'a': Callable[[T], T]}) |
| 1393 | |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 1394 | def test_callable_with_ellipsis_forward(self): |
| 1395 | |
| 1396 | def foo(a: 'Callable[..., T]'): |
| 1397 | pass |
| 1398 | |
| 1399 | self.assertEqual(get_type_hints(foo, globals(), locals()), |
| 1400 | {'a': Callable[..., T]}) |
| 1401 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1402 | def test_syntax_error(self): |
| 1403 | |
| 1404 | with self.assertRaises(SyntaxError): |
| 1405 | Generic['/T'] |
| 1406 | |
| 1407 | def test_delayed_syntax_error(self): |
| 1408 | |
| 1409 | def foo(a: 'Node[T'): |
| 1410 | pass |
| 1411 | |
| 1412 | with self.assertRaises(SyntaxError): |
| 1413 | get_type_hints(foo) |
| 1414 | |
| 1415 | def test_type_error(self): |
| 1416 | |
| 1417 | def foo(a: Tuple['42']): |
| 1418 | pass |
| 1419 | |
| 1420 | with self.assertRaises(TypeError): |
| 1421 | get_type_hints(foo) |
| 1422 | |
| 1423 | def test_name_error(self): |
| 1424 | |
| 1425 | def foo(a: 'Noode[T]'): |
| 1426 | pass |
| 1427 | |
| 1428 | with self.assertRaises(NameError): |
| 1429 | get_type_hints(foo, locals()) |
| 1430 | |
| 1431 | def test_no_type_check(self): |
| 1432 | |
| 1433 | @no_type_check |
| 1434 | def foo(a: 'whatevers') -> {}: |
| 1435 | pass |
| 1436 | |
| 1437 | th = get_type_hints(foo) |
| 1438 | self.assertEqual(th, {}) |
| 1439 | |
| 1440 | def test_no_type_check_class(self): |
| 1441 | |
| 1442 | @no_type_check |
| 1443 | class C: |
| 1444 | def foo(a: 'whatevers') -> {}: |
| 1445 | pass |
| 1446 | |
| 1447 | cth = get_type_hints(C.foo) |
| 1448 | self.assertEqual(cth, {}) |
| 1449 | ith = get_type_hints(C().foo) |
| 1450 | self.assertEqual(ith, {}) |
| 1451 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1452 | def test_no_type_check_no_bases(self): |
| 1453 | class C: |
| 1454 | def meth(self, x: int): ... |
| 1455 | @no_type_check |
| 1456 | class D(C): |
| 1457 | c = C |
| 1458 | # verify that @no_type_check never affects bases |
| 1459 | self.assertEqual(get_type_hints(C.meth), {'x': int}) |
| 1460 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1461 | def test_meta_no_type_check(self): |
| 1462 | |
| 1463 | @no_type_check_decorator |
| 1464 | def magic_decorator(deco): |
| 1465 | return deco |
| 1466 | |
| 1467 | self.assertEqual(magic_decorator.__name__, 'magic_decorator') |
| 1468 | |
| 1469 | @magic_decorator |
| 1470 | def foo(a: 'whatevers') -> {}: |
| 1471 | pass |
| 1472 | |
| 1473 | @magic_decorator |
| 1474 | class C: |
| 1475 | def foo(a: 'whatevers') -> {}: |
| 1476 | pass |
| 1477 | |
| 1478 | self.assertEqual(foo.__name__, 'foo') |
| 1479 | th = get_type_hints(foo) |
| 1480 | self.assertEqual(th, {}) |
| 1481 | cth = get_type_hints(C.foo) |
| 1482 | self.assertEqual(cth, {}) |
| 1483 | ith = get_type_hints(C().foo) |
| 1484 | self.assertEqual(ith, {}) |
| 1485 | |
| 1486 | def test_default_globals(self): |
| 1487 | code = ("class C:\n" |
| 1488 | " def foo(self, a: 'C') -> 'D': pass\n" |
| 1489 | "class D:\n" |
| 1490 | " def bar(self, b: 'D') -> C: pass\n" |
| 1491 | ) |
| 1492 | ns = {} |
| 1493 | exec(code, ns) |
| 1494 | hints = get_type_hints(ns['C'].foo) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1495 | self.assertEqual(hints, {'a': ns['C'], 'return': ns['D']}) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1496 | |
| 1497 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1498 | class OverloadTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1499 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1500 | def test_overload_fails(self): |
| 1501 | from typing import overload |
| 1502 | |
| 1503 | with self.assertRaises(RuntimeError): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1504 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1505 | @overload |
| 1506 | def blah(): |
| 1507 | pass |
| 1508 | |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1509 | blah() |
| 1510 | |
| 1511 | def test_overload_succeeds(self): |
| 1512 | from typing import overload |
| 1513 | |
| 1514 | @overload |
| 1515 | def blah(): |
| 1516 | pass |
| 1517 | |
| 1518 | def blah(): |
| 1519 | pass |
| 1520 | |
| 1521 | blah() |
| 1522 | |
| 1523 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1524 | ASYNCIO = sys.version_info[:2] >= (3, 5) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1525 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1526 | ASYNCIO_TESTS = """ |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1527 | import asyncio |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1528 | |
Guido van Rossum | 62fe1bb | 2016-10-29 16:05:26 -0700 | [diff] [blame] | 1529 | T_a = TypeVar('T_a') |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1530 | |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1531 | class AwaitableWrapper(typing.Awaitable[T_a]): |
| 1532 | |
| 1533 | def __init__(self, value): |
| 1534 | self.value = value |
| 1535 | |
| 1536 | def __await__(self) -> typing.Iterator[T_a]: |
| 1537 | yield |
| 1538 | return self.value |
| 1539 | |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1540 | class AsyncIteratorWrapper(typing.AsyncIterator[T_a]): |
| 1541 | |
| 1542 | def __init__(self, value: typing.Iterable[T_a]): |
| 1543 | self.value = value |
| 1544 | |
| 1545 | def __aiter__(self) -> typing.AsyncIterator[T_a]: |
| 1546 | return self |
| 1547 | |
| 1548 | @asyncio.coroutine |
| 1549 | def __anext__(self) -> T_a: |
| 1550 | data = yield from self.value |
| 1551 | if data: |
| 1552 | return data |
| 1553 | else: |
| 1554 | raise StopAsyncIteration |
Ivan Levkivskyi | 29fda8d | 2017-06-10 21:57:56 +0200 | [diff] [blame] | 1555 | |
| 1556 | class ACM: |
| 1557 | async def __aenter__(self) -> int: |
| 1558 | return 42 |
| 1559 | async def __aexit__(self, etype, eval, tb): |
| 1560 | return None |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1561 | """ |
| 1562 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1563 | if ASYNCIO: |
| 1564 | try: |
| 1565 | exec(ASYNCIO_TESTS) |
| 1566 | except ImportError: |
| 1567 | ASYNCIO = False |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 1568 | else: |
| 1569 | # fake names for the sake of static analysis |
| 1570 | asyncio = None |
Ivan Levkivskyi | 29fda8d | 2017-06-10 21:57:56 +0200 | [diff] [blame] | 1571 | AwaitableWrapper = AsyncIteratorWrapper = ACM = object |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1572 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1573 | PY36 = sys.version_info[:2] >= (3, 6) |
| 1574 | |
| 1575 | PY36_TESTS = """ |
| 1576 | from test import ann_module, ann_module2, ann_module3 |
Ivan Levkivskyi | 29fda8d | 2017-06-10 21:57:56 +0200 | [diff] [blame] | 1577 | from typing import AsyncContextManager |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1578 | |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1579 | class A: |
| 1580 | y: float |
| 1581 | class B(A): |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1582 | x: ClassVar[Optional['B']] = None |
| 1583 | y: int |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1584 | b: int |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1585 | class CSub(B): |
| 1586 | z: ClassVar['CSub'] = B() |
| 1587 | class G(Generic[T]): |
| 1588 | lst: ClassVar[List[T]] = [] |
| 1589 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1590 | class NoneAndForward: |
| 1591 | parent: 'NoneAndForward' |
| 1592 | meaning: None |
| 1593 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1594 | class CoolEmployee(NamedTuple): |
| 1595 | name: str |
| 1596 | cool: int |
Guido van Rossum | 3c268be | 2017-01-18 08:03:50 -0800 | [diff] [blame] | 1597 | |
| 1598 | class CoolEmployeeWithDefault(NamedTuple): |
| 1599 | name: str |
| 1600 | cool: int = 0 |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 1601 | |
| 1602 | class XMeth(NamedTuple): |
| 1603 | x: int |
| 1604 | def double(self): |
| 1605 | return 2 * self.x |
| 1606 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1607 | class XRepr(NamedTuple): |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 1608 | x: int |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1609 | y: int = 1 |
| 1610 | def __str__(self): |
| 1611 | return f'{self.x} -> {self.y}' |
| 1612 | def __add__(self, other): |
| 1613 | return 0 |
Ivan Levkivskyi | 29fda8d | 2017-06-10 21:57:56 +0200 | [diff] [blame] | 1614 | |
| 1615 | async def g_with(am: AsyncContextManager[int]): |
| 1616 | x: int |
| 1617 | async with am as x: |
| 1618 | return x |
| 1619 | |
| 1620 | try: |
| 1621 | g_with(ACM()).send(None) |
| 1622 | except StopIteration as e: |
| 1623 | assert e.args[0] == 42 |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1624 | """ |
| 1625 | |
| 1626 | if PY36: |
| 1627 | exec(PY36_TESTS) |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 1628 | else: |
| 1629 | # fake names for the sake of static analysis |
| 1630 | ann_module = ann_module2 = ann_module3 = None |
| 1631 | A = B = CSub = G = CoolEmployee = CoolEmployeeWithDefault = object |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1632 | XMeth = XRepr = NoneAndForward = object |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1633 | |
| 1634 | gth = get_type_hints |
| 1635 | |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 1636 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1637 | class GetTypeHintTests(BaseTestCase): |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1638 | def test_get_type_hints_from_various_objects(self): |
| 1639 | # For invalid objects should fail with TypeError (not AttributeError etc). |
| 1640 | with self.assertRaises(TypeError): |
| 1641 | gth(123) |
| 1642 | with self.assertRaises(TypeError): |
| 1643 | gth('abc') |
| 1644 | with self.assertRaises(TypeError): |
| 1645 | gth(None) |
| 1646 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1647 | @skipUnless(PY36, 'Python 3.6 required') |
| 1648 | def test_get_type_hints_modules(self): |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 1649 | ann_module_type_hints = {1: 2, 'f': Tuple[int, int], 'x': int, 'y': str} |
| 1650 | self.assertEqual(gth(ann_module), ann_module_type_hints) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1651 | self.assertEqual(gth(ann_module2), {}) |
| 1652 | self.assertEqual(gth(ann_module3), {}) |
| 1653 | |
| 1654 | @skipUnless(PY36, 'Python 3.6 required') |
| 1655 | def test_get_type_hints_classes(self): |
| 1656 | self.assertEqual(gth(ann_module.C, ann_module.__dict__), |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1657 | {'y': Optional[ann_module.C]}) |
| 1658 | self.assertIsInstance(gth(ann_module.j_class), dict) |
| 1659 | self.assertEqual(gth(ann_module.M), {'123': 123, 'o': type}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1660 | self.assertEqual(gth(ann_module.D), |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1661 | {'j': str, 'k': str, 'y': Optional[ann_module.C]}) |
| 1662 | self.assertEqual(gth(ann_module.Y), {'z': int}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1663 | self.assertEqual(gth(ann_module.h_class), |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1664 | {'y': Optional[ann_module.C]}) |
| 1665 | self.assertEqual(gth(ann_module.S), {'x': str, 'y': str}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1666 | self.assertEqual(gth(ann_module.foo), {'x': int}) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1667 | self.assertEqual(gth(NoneAndForward, globals()), |
| 1668 | {'parent': NoneAndForward, 'meaning': type(None)}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1669 | |
| 1670 | @skipUnless(PY36, 'Python 3.6 required') |
| 1671 | def test_respect_no_type_check(self): |
| 1672 | @no_type_check |
| 1673 | class NoTpCheck: |
| 1674 | class Inn: |
| 1675 | def __init__(self, x: 'not a type'): ... |
| 1676 | self.assertTrue(NoTpCheck.__no_type_check__) |
| 1677 | self.assertTrue(NoTpCheck.Inn.__init__.__no_type_check__) |
| 1678 | self.assertEqual(gth(ann_module2.NTC.meth), {}) |
| 1679 | class ABase(Generic[T]): |
| 1680 | def meth(x: int): ... |
| 1681 | @no_type_check |
| 1682 | class Der(ABase): ... |
| 1683 | self.assertEqual(gth(ABase.meth), {'x': int}) |
| 1684 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1685 | def test_get_type_hints_for_builtins(self): |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1686 | # Should not fail for built-in classes and functions. |
| 1687 | self.assertEqual(gth(int), {}) |
| 1688 | self.assertEqual(gth(type), {}) |
| 1689 | self.assertEqual(gth(dir), {}) |
| 1690 | self.assertEqual(gth(len), {}) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1691 | self.assertEqual(gth(object.__str__), {}) |
| 1692 | self.assertEqual(gth(object().__str__), {}) |
| 1693 | self.assertEqual(gth(str.join), {}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1694 | |
| 1695 | def test_previous_behavior(self): |
| 1696 | def testf(x, y): ... |
| 1697 | testf.__annotations__['x'] = 'int' |
| 1698 | self.assertEqual(gth(testf), {'x': int}) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1699 | def testg(x: None): ... |
| 1700 | self.assertEqual(gth(testg), {'x': type(None)}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1701 | |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1702 | def test_get_type_hints_for_object_with_annotations(self): |
| 1703 | class A: ... |
| 1704 | class B: ... |
| 1705 | b = B() |
| 1706 | b.__annotations__ = {'x': 'A'} |
| 1707 | self.assertEqual(gth(b, locals()), {'x': A}) |
| 1708 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1709 | @skipUnless(PY36, 'Python 3.6 required') |
| 1710 | def test_get_type_hints_ClassVar(self): |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1711 | self.assertEqual(gth(ann_module2.CV, ann_module2.__dict__), |
| 1712 | {'var': typing.ClassVar[ann_module2.CV]}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1713 | self.assertEqual(gth(B, globals()), |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1714 | {'y': int, 'x': ClassVar[Optional[B]], 'b': int}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1715 | self.assertEqual(gth(CSub, globals()), |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1716 | {'z': ClassVar[CSub], 'y': int, 'b': int, |
| 1717 | 'x': ClassVar[Optional[B]]}) |
Guido van Rossum | 991d14f | 2016-11-09 13:12:51 -0800 | [diff] [blame] | 1718 | self.assertEqual(gth(G), {'lst': ClassVar[List[T]]}) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 1719 | |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1720 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1721 | class CollectionsAbcTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1722 | |
| 1723 | def test_hashable(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1724 | self.assertIsInstance(42, typing.Hashable) |
| 1725 | self.assertNotIsInstance([], typing.Hashable) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1726 | |
| 1727 | def test_iterable(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1728 | self.assertIsInstance([], typing.Iterable) |
Guido van Rossum | 1b66910 | 2015-09-04 12:15:54 -0700 | [diff] [blame] | 1729 | # Due to ABC caching, the second time takes a separate code |
| 1730 | # path and could fail. So call this a few times. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1731 | self.assertIsInstance([], typing.Iterable) |
| 1732 | self.assertIsInstance([], typing.Iterable) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1733 | self.assertNotIsInstance(42, typing.Iterable) |
Guido van Rossum | 1b66910 | 2015-09-04 12:15:54 -0700 | [diff] [blame] | 1734 | # Just in case, also test issubclass() a few times. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1735 | self.assertIsSubclass(list, typing.Iterable) |
| 1736 | self.assertIsSubclass(list, typing.Iterable) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1737 | |
| 1738 | def test_iterator(self): |
| 1739 | it = iter([]) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1740 | self.assertIsInstance(it, typing.Iterator) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1741 | self.assertNotIsInstance(42, typing.Iterator) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1742 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1743 | @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1744 | def test_awaitable(self): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1745 | ns = {} |
| 1746 | exec( |
| 1747 | "async def foo() -> typing.Awaitable[int]:\n" |
| 1748 | " return await AwaitableWrapper(42)\n", |
| 1749 | globals(), ns) |
| 1750 | foo = ns['foo'] |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1751 | g = foo() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1752 | self.assertIsInstance(g, typing.Awaitable) |
| 1753 | self.assertNotIsInstance(foo, typing.Awaitable) |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1754 | g.send(None) # Run foo() till completion, to avoid warning. |
| 1755 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1756 | @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') |
Guido van Rossum | 62fe1bb | 2016-10-29 16:05:26 -0700 | [diff] [blame] | 1757 | def test_coroutine(self): |
| 1758 | ns = {} |
| 1759 | exec( |
| 1760 | "async def foo():\n" |
| 1761 | " return\n", |
| 1762 | globals(), ns) |
| 1763 | foo = ns['foo'] |
| 1764 | g = foo() |
| 1765 | self.assertIsInstance(g, typing.Coroutine) |
| 1766 | with self.assertRaises(TypeError): |
| 1767 | isinstance(g, typing.Coroutine[int]) |
| 1768 | self.assertNotIsInstance(foo, typing.Coroutine) |
| 1769 | try: |
| 1770 | g.send(None) |
| 1771 | except StopIteration: |
| 1772 | pass |
| 1773 | |
| 1774 | @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1775 | def test_async_iterable(self): |
| 1776 | base_it = range(10) # type: Iterator[int] |
| 1777 | it = AsyncIteratorWrapper(base_it) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1778 | self.assertIsInstance(it, typing.AsyncIterable) |
| 1779 | self.assertIsInstance(it, typing.AsyncIterable) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1780 | self.assertNotIsInstance(42, typing.AsyncIterable) |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1781 | |
Guido van Rossum | ac353df | 2016-10-21 16:12:17 -0700 | [diff] [blame] | 1782 | @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1783 | def test_async_iterator(self): |
| 1784 | base_it = range(10) # type: Iterator[int] |
| 1785 | it = AsyncIteratorWrapper(base_it) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1786 | self.assertIsInstance(it, typing.AsyncIterator) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1787 | self.assertNotIsInstance(42, typing.AsyncIterator) |
Guido van Rossum | f17c200 | 2015-12-03 17:31:24 -0800 | [diff] [blame] | 1788 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1789 | def test_sized(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1790 | self.assertIsInstance([], typing.Sized) |
| 1791 | self.assertNotIsInstance(42, typing.Sized) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1792 | |
| 1793 | def test_container(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1794 | self.assertIsInstance([], typing.Container) |
| 1795 | self.assertNotIsInstance(42, typing.Container) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1796 | |
Guido van Rossum | efa798d | 2016-08-23 11:01:50 -0700 | [diff] [blame] | 1797 | def test_collection(self): |
| 1798 | if hasattr(typing, 'Collection'): |
| 1799 | self.assertIsInstance(tuple(), typing.Collection) |
| 1800 | self.assertIsInstance(frozenset(), typing.Collection) |
| 1801 | self.assertIsSubclass(dict, typing.Collection) |
| 1802 | self.assertNotIsInstance(42, typing.Collection) |
| 1803 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1804 | def test_abstractset(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1805 | self.assertIsInstance(set(), typing.AbstractSet) |
| 1806 | self.assertNotIsInstance(42, typing.AbstractSet) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1807 | |
| 1808 | def test_mutableset(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1809 | self.assertIsInstance(set(), typing.MutableSet) |
| 1810 | self.assertNotIsInstance(frozenset(), typing.MutableSet) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1811 | |
| 1812 | def test_mapping(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1813 | self.assertIsInstance({}, typing.Mapping) |
| 1814 | self.assertNotIsInstance(42, typing.Mapping) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1815 | |
| 1816 | def test_mutablemapping(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1817 | self.assertIsInstance({}, typing.MutableMapping) |
| 1818 | self.assertNotIsInstance(42, typing.MutableMapping) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1819 | |
| 1820 | def test_sequence(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1821 | self.assertIsInstance([], typing.Sequence) |
| 1822 | self.assertNotIsInstance(42, typing.Sequence) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1823 | |
| 1824 | def test_mutablesequence(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1825 | self.assertIsInstance([], typing.MutableSequence) |
| 1826 | self.assertNotIsInstance((), typing.MutableSequence) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1827 | |
| 1828 | def test_bytestring(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1829 | self.assertIsInstance(b'', typing.ByteString) |
| 1830 | self.assertIsInstance(bytearray(b''), typing.ByteString) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1831 | |
| 1832 | def test_list(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1833 | self.assertIsSubclass(list, typing.List) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1834 | |
Raymond Hettinger | 8049052 | 2017-01-16 22:42:37 -0800 | [diff] [blame] | 1835 | def test_deque(self): |
| 1836 | self.assertIsSubclass(collections.deque, typing.Deque) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1837 | class MyDeque(typing.Deque[int]): ... |
| 1838 | self.assertIsInstance(MyDeque(), collections.deque) |
| 1839 | |
| 1840 | def test_counter(self): |
| 1841 | self.assertIsSubclass(collections.Counter, typing.Counter) |
Raymond Hettinger | 8049052 | 2017-01-16 22:42:37 -0800 | [diff] [blame] | 1842 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1843 | def test_set(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1844 | self.assertIsSubclass(set, typing.Set) |
| 1845 | self.assertNotIsSubclass(frozenset, typing.Set) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1846 | |
| 1847 | def test_frozenset(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1848 | self.assertIsSubclass(frozenset, typing.FrozenSet) |
| 1849 | self.assertNotIsSubclass(set, typing.FrozenSet) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1850 | |
| 1851 | def test_dict(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1852 | self.assertIsSubclass(dict, typing.Dict) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1853 | |
| 1854 | def test_no_list_instantiation(self): |
| 1855 | with self.assertRaises(TypeError): |
| 1856 | typing.List() |
| 1857 | with self.assertRaises(TypeError): |
| 1858 | typing.List[T]() |
| 1859 | with self.assertRaises(TypeError): |
| 1860 | typing.List[int]() |
| 1861 | |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1862 | def test_list_subclass(self): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1863 | |
| 1864 | class MyList(typing.List[int]): |
| 1865 | pass |
| 1866 | |
| 1867 | a = MyList() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1868 | self.assertIsInstance(a, MyList) |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1869 | self.assertIsInstance(a, typing.Sequence) |
| 1870 | |
| 1871 | self.assertIsSubclass(MyList, list) |
| 1872 | self.assertNotIsSubclass(list, MyList) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1873 | |
| 1874 | def test_no_dict_instantiation(self): |
| 1875 | with self.assertRaises(TypeError): |
| 1876 | typing.Dict() |
| 1877 | with self.assertRaises(TypeError): |
| 1878 | typing.Dict[KT, VT]() |
| 1879 | with self.assertRaises(TypeError): |
| 1880 | typing.Dict[str, int]() |
| 1881 | |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1882 | def test_dict_subclass(self): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1883 | |
| 1884 | class MyDict(typing.Dict[str, int]): |
| 1885 | pass |
| 1886 | |
| 1887 | d = MyDict() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1888 | self.assertIsInstance(d, MyDict) |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1889 | self.assertIsInstance(d, typing.MutableMapping) |
| 1890 | |
| 1891 | self.assertIsSubclass(MyDict, dict) |
| 1892 | self.assertNotIsSubclass(dict, MyDict) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1893 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1894 | def test_defaultdict_instantiation(self): |
| 1895 | self.assertIs(type(typing.DefaultDict()), collections.defaultdict) |
| 1896 | self.assertIs(type(typing.DefaultDict[KT, VT]()), collections.defaultdict) |
| 1897 | self.assertIs(type(typing.DefaultDict[str, int]()), collections.defaultdict) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1898 | |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1899 | def test_defaultdict_subclass(self): |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1900 | |
| 1901 | class MyDefDict(typing.DefaultDict[str, int]): |
| 1902 | pass |
| 1903 | |
| 1904 | dd = MyDefDict() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1905 | self.assertIsInstance(dd, MyDefDict) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 1906 | |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 1907 | self.assertIsSubclass(MyDefDict, collections.defaultdict) |
| 1908 | self.assertNotIsSubclass(collections.defaultdict, MyDefDict) |
| 1909 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 1910 | @skipUnless(sys.version_info >= (3, 3), 'ChainMap was added in 3.3') |
| 1911 | def test_chainmap_instantiation(self): |
| 1912 | self.assertIs(type(typing.ChainMap()), collections.ChainMap) |
| 1913 | self.assertIs(type(typing.ChainMap[KT, VT]()), collections.ChainMap) |
| 1914 | self.assertIs(type(typing.ChainMap[str, int]()), collections.ChainMap) |
| 1915 | class CM(typing.ChainMap[KT, VT]): ... |
| 1916 | self.assertIs(type(CM[int, str]()), CM) |
| 1917 | |
| 1918 | @skipUnless(sys.version_info >= (3, 3), 'ChainMap was added in 3.3') |
| 1919 | def test_chainmap_subclass(self): |
| 1920 | |
| 1921 | class MyChainMap(typing.ChainMap[str, int]): |
| 1922 | pass |
| 1923 | |
| 1924 | cm = MyChainMap() |
| 1925 | self.assertIsInstance(cm, MyChainMap) |
| 1926 | |
| 1927 | self.assertIsSubclass(MyChainMap, collections.ChainMap) |
| 1928 | self.assertNotIsSubclass(collections.ChainMap, MyChainMap) |
| 1929 | |
| 1930 | def test_deque_instantiation(self): |
| 1931 | self.assertIs(type(typing.Deque()), collections.deque) |
| 1932 | self.assertIs(type(typing.Deque[T]()), collections.deque) |
| 1933 | self.assertIs(type(typing.Deque[int]()), collections.deque) |
| 1934 | class D(typing.Deque[T]): ... |
| 1935 | self.assertIs(type(D[int]()), D) |
| 1936 | |
| 1937 | def test_counter_instantiation(self): |
| 1938 | self.assertIs(type(typing.Counter()), collections.Counter) |
| 1939 | self.assertIs(type(typing.Counter[T]()), collections.Counter) |
| 1940 | self.assertIs(type(typing.Counter[int]()), collections.Counter) |
| 1941 | class C(typing.Counter[T]): ... |
| 1942 | self.assertIs(type(C[int]()), C) |
| 1943 | |
| 1944 | def test_counter_subclass_instantiation(self): |
| 1945 | |
| 1946 | class MyCounter(typing.Counter[int]): |
| 1947 | pass |
| 1948 | |
| 1949 | d = MyCounter() |
| 1950 | self.assertIsInstance(d, MyCounter) |
| 1951 | self.assertIsInstance(d, typing.Counter) |
| 1952 | self.assertIsInstance(d, collections.Counter) |
Raymond Hettinger | 8049052 | 2017-01-16 22:42:37 -0800 | [diff] [blame] | 1953 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1954 | def test_no_set_instantiation(self): |
| 1955 | with self.assertRaises(TypeError): |
| 1956 | typing.Set() |
| 1957 | with self.assertRaises(TypeError): |
| 1958 | typing.Set[T]() |
| 1959 | with self.assertRaises(TypeError): |
| 1960 | typing.Set[int]() |
| 1961 | |
| 1962 | def test_set_subclass_instantiation(self): |
| 1963 | |
| 1964 | class MySet(typing.Set[int]): |
| 1965 | pass |
| 1966 | |
| 1967 | d = MySet() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1968 | self.assertIsInstance(d, MySet) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1969 | |
| 1970 | def test_no_frozenset_instantiation(self): |
| 1971 | with self.assertRaises(TypeError): |
| 1972 | typing.FrozenSet() |
| 1973 | with self.assertRaises(TypeError): |
| 1974 | typing.FrozenSet[T]() |
| 1975 | with self.assertRaises(TypeError): |
| 1976 | typing.FrozenSet[int]() |
| 1977 | |
| 1978 | def test_frozenset_subclass_instantiation(self): |
| 1979 | |
| 1980 | class MyFrozenSet(typing.FrozenSet[int]): |
| 1981 | pass |
| 1982 | |
| 1983 | d = MyFrozenSet() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1984 | self.assertIsInstance(d, MyFrozenSet) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1985 | |
| 1986 | def test_no_tuple_instantiation(self): |
| 1987 | with self.assertRaises(TypeError): |
| 1988 | Tuple() |
| 1989 | with self.assertRaises(TypeError): |
| 1990 | Tuple[T]() |
| 1991 | with self.assertRaises(TypeError): |
| 1992 | Tuple[int]() |
| 1993 | |
| 1994 | def test_generator(self): |
| 1995 | def foo(): |
| 1996 | yield 42 |
| 1997 | g = foo() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 1998 | self.assertIsSubclass(type(g), typing.Generator) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 1999 | |
| 2000 | def test_no_generator_instantiation(self): |
| 2001 | with self.assertRaises(TypeError): |
| 2002 | typing.Generator() |
| 2003 | with self.assertRaises(TypeError): |
| 2004 | typing.Generator[T, T, T]() |
| 2005 | with self.assertRaises(TypeError): |
| 2006 | typing.Generator[int, int, int]() |
| 2007 | |
Guido van Rossum | e9ed560 | 2017-01-18 13:10:31 -0800 | [diff] [blame] | 2008 | @skipUnless(PY36, 'Python 3.6 required') |
| 2009 | def test_async_generator(self): |
| 2010 | ns = {} |
| 2011 | exec("async def f():\n" |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 2012 | " yield 42\n", globals(), ns) |
Guido van Rossum | e9ed560 | 2017-01-18 13:10:31 -0800 | [diff] [blame] | 2013 | g = ns['f']() |
| 2014 | self.assertIsSubclass(type(g), typing.AsyncGenerator) |
| 2015 | |
| 2016 | @skipUnless(PY36, 'Python 3.6 required') |
| 2017 | def test_no_async_generator_instantiation(self): |
| 2018 | with self.assertRaises(TypeError): |
| 2019 | typing.AsyncGenerator() |
| 2020 | with self.assertRaises(TypeError): |
| 2021 | typing.AsyncGenerator[T, T]() |
| 2022 | with self.assertRaises(TypeError): |
| 2023 | typing.AsyncGenerator[int, int]() |
| 2024 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2025 | def test_subclassing(self): |
| 2026 | |
| 2027 | class MMA(typing.MutableMapping): |
| 2028 | pass |
| 2029 | |
| 2030 | with self.assertRaises(TypeError): # It's abstract |
| 2031 | MMA() |
| 2032 | |
| 2033 | class MMC(MMA): |
Guido van Rossum | b47c9d2 | 2016-10-03 08:40:50 -0700 | [diff] [blame] | 2034 | def __getitem__(self, k): |
| 2035 | return None |
| 2036 | def __setitem__(self, k, v): |
| 2037 | pass |
| 2038 | def __delitem__(self, k): |
| 2039 | pass |
| 2040 | def __iter__(self): |
| 2041 | return iter(()) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2042 | def __len__(self): |
| 2043 | return 0 |
| 2044 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2045 | self.assertEqual(len(MMC()), 0) |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2046 | assert callable(MMC.update) |
| 2047 | self.assertIsInstance(MMC(), typing.Mapping) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2048 | |
| 2049 | class MMB(typing.MutableMapping[KT, VT]): |
Guido van Rossum | b47c9d2 | 2016-10-03 08:40:50 -0700 | [diff] [blame] | 2050 | def __getitem__(self, k): |
| 2051 | return None |
| 2052 | def __setitem__(self, k, v): |
| 2053 | pass |
| 2054 | def __delitem__(self, k): |
| 2055 | pass |
| 2056 | def __iter__(self): |
| 2057 | return iter(()) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2058 | def __len__(self): |
| 2059 | return 0 |
| 2060 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2061 | self.assertEqual(len(MMB()), 0) |
| 2062 | self.assertEqual(len(MMB[str, str]()), 0) |
| 2063 | self.assertEqual(len(MMB[KT, VT]()), 0) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2064 | |
Guido van Rossum | 1cea70f | 2016-05-18 08:35:00 -0700 | [diff] [blame] | 2065 | self.assertNotIsSubclass(dict, MMA) |
| 2066 | self.assertNotIsSubclass(dict, MMB) |
| 2067 | |
| 2068 | self.assertIsSubclass(MMA, typing.Mapping) |
| 2069 | self.assertIsSubclass(MMB, typing.Mapping) |
| 2070 | self.assertIsSubclass(MMC, typing.Mapping) |
| 2071 | |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2072 | self.assertIsInstance(MMB[KT, VT](), typing.Mapping) |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2073 | self.assertIsInstance(MMB[KT, VT](), collections_abc.Mapping) |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2074 | |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2075 | self.assertIsSubclass(MMA, collections_abc.Mapping) |
| 2076 | self.assertIsSubclass(MMB, collections_abc.Mapping) |
| 2077 | self.assertIsSubclass(MMC, collections_abc.Mapping) |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2078 | |
| 2079 | self.assertIsSubclass(MMB[str, str], typing.Mapping) |
| 2080 | self.assertIsSubclass(MMC, MMA) |
| 2081 | |
| 2082 | class I(typing.Iterable): ... |
| 2083 | self.assertNotIsSubclass(list, I) |
| 2084 | |
| 2085 | class G(typing.Generator[int, int, int]): ... |
| 2086 | def g(): yield 0 |
| 2087 | self.assertIsSubclass(G, typing.Generator) |
| 2088 | self.assertIsSubclass(G, typing.Iterable) |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2089 | if hasattr(collections_abc, 'Generator'): |
| 2090 | self.assertIsSubclass(G, collections_abc.Generator) |
| 2091 | self.assertIsSubclass(G, collections_abc.Iterable) |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2092 | self.assertNotIsSubclass(type(g), G) |
| 2093 | |
Guido van Rossum | e9ed560 | 2017-01-18 13:10:31 -0800 | [diff] [blame] | 2094 | @skipUnless(PY36, 'Python 3.6 required') |
| 2095 | def test_subclassing_async_generator(self): |
| 2096 | class G(typing.AsyncGenerator[int, int]): |
| 2097 | def asend(self, value): |
| 2098 | pass |
| 2099 | def athrow(self, typ, val=None, tb=None): |
| 2100 | pass |
| 2101 | |
| 2102 | ns = {} |
| 2103 | exec('async def g(): yield 0', globals(), ns) |
| 2104 | g = ns['g'] |
| 2105 | self.assertIsSubclass(G, typing.AsyncGenerator) |
| 2106 | self.assertIsSubclass(G, typing.AsyncIterable) |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2107 | self.assertIsSubclass(G, collections_abc.AsyncGenerator) |
| 2108 | self.assertIsSubclass(G, collections_abc.AsyncIterable) |
Guido van Rossum | e9ed560 | 2017-01-18 13:10:31 -0800 | [diff] [blame] | 2109 | self.assertNotIsSubclass(type(g), G) |
| 2110 | |
| 2111 | instance = G() |
| 2112 | self.assertIsInstance(instance, typing.AsyncGenerator) |
| 2113 | self.assertIsInstance(instance, typing.AsyncIterable) |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2114 | self.assertIsInstance(instance, collections_abc.AsyncGenerator) |
| 2115 | self.assertIsInstance(instance, collections_abc.AsyncIterable) |
Guido van Rossum | e9ed560 | 2017-01-18 13:10:31 -0800 | [diff] [blame] | 2116 | self.assertNotIsInstance(type(g), G) |
| 2117 | self.assertNotIsInstance(g, G) |
| 2118 | |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2119 | def test_subclassing_subclasshook(self): |
| 2120 | |
| 2121 | class Base(typing.Iterable): |
| 2122 | @classmethod |
| 2123 | def __subclasshook__(cls, other): |
| 2124 | if other.__name__ == 'Foo': |
| 2125 | return True |
| 2126 | else: |
| 2127 | return False |
| 2128 | |
| 2129 | class C(Base): ... |
| 2130 | class Foo: ... |
| 2131 | class Bar: ... |
| 2132 | self.assertIsSubclass(Foo, Base) |
| 2133 | self.assertIsSubclass(Foo, C) |
| 2134 | self.assertNotIsSubclass(Bar, C) |
| 2135 | |
| 2136 | def test_subclassing_register(self): |
| 2137 | |
| 2138 | class A(typing.Container): ... |
| 2139 | class B(A): ... |
| 2140 | |
| 2141 | class C: ... |
| 2142 | A.register(C) |
| 2143 | self.assertIsSubclass(C, A) |
| 2144 | self.assertNotIsSubclass(C, B) |
| 2145 | |
| 2146 | class D: ... |
| 2147 | B.register(D) |
| 2148 | self.assertIsSubclass(D, A) |
| 2149 | self.assertIsSubclass(D, B) |
| 2150 | |
| 2151 | class M(): ... |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2152 | collections_abc.MutableMapping.register(M) |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2153 | self.assertIsSubclass(M, typing.Mapping) |
| 2154 | |
| 2155 | def test_collections_as_base(self): |
| 2156 | |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2157 | class M(collections_abc.Mapping): ... |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2158 | self.assertIsSubclass(M, typing.Mapping) |
| 2159 | self.assertIsSubclass(M, typing.Iterable) |
| 2160 | |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2161 | class S(collections_abc.MutableSequence): ... |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2162 | self.assertIsSubclass(S, typing.MutableSequence) |
| 2163 | self.assertIsSubclass(S, typing.Iterable) |
| 2164 | |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2165 | class I(collections_abc.Iterable): ... |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2166 | self.assertIsSubclass(I, typing.Iterable) |
| 2167 | |
Serhiy Storchaka | 2e576f5 | 2017-04-24 09:05:00 +0300 | [diff] [blame] | 2168 | class A(collections_abc.Mapping, metaclass=abc.ABCMeta): ... |
Guido van Rossum | e259267 | 2016-10-08 20:27:22 -0700 | [diff] [blame] | 2169 | class B: ... |
| 2170 | A.register(B) |
| 2171 | self.assertIsSubclass(B, typing.Mapping) |
| 2172 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2173 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2174 | class OtherABCTests(BaseTestCase): |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2175 | |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2176 | def test_contextmanager(self): |
| 2177 | @contextlib.contextmanager |
| 2178 | def manager(): |
| 2179 | yield 42 |
| 2180 | |
| 2181 | cm = manager() |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2182 | self.assertIsInstance(cm, typing.ContextManager) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2183 | self.assertNotIsInstance(42, typing.ContextManager) |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2184 | |
Ivan Levkivskyi | 29fda8d | 2017-06-10 21:57:56 +0200 | [diff] [blame] | 2185 | @skipUnless(ASYNCIO, 'Python 3.5 required') |
| 2186 | def test_async_contextmanager(self): |
| 2187 | class NotACM: |
| 2188 | pass |
| 2189 | self.assertIsInstance(ACM(), typing.AsyncContextManager) |
| 2190 | self.assertNotIsInstance(NotACM(), typing.AsyncContextManager) |
| 2191 | @contextlib.contextmanager |
| 2192 | def manager(): |
| 2193 | yield 42 |
| 2194 | |
| 2195 | cm = manager() |
| 2196 | self.assertNotIsInstance(cm, typing.AsyncContextManager) |
| 2197 | self.assertEqual(typing.AsyncContextManager[int].__args__, (int,)) |
| 2198 | with self.assertRaises(TypeError): |
| 2199 | isinstance(42, typing.AsyncContextManager[int]) |
| 2200 | with self.assertRaises(TypeError): |
| 2201 | typing.AsyncContextManager[int, str] |
| 2202 | |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2203 | |
Guido van Rossum | eb9aca3 | 2016-05-24 16:38:22 -0700 | [diff] [blame] | 2204 | class TypeTests(BaseTestCase): |
| 2205 | |
| 2206 | def test_type_basic(self): |
| 2207 | |
| 2208 | class User: pass |
| 2209 | class BasicUser(User): pass |
| 2210 | class ProUser(User): pass |
| 2211 | |
| 2212 | def new_user(user_class: Type[User]) -> User: |
| 2213 | return user_class() |
| 2214 | |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 2215 | new_user(BasicUser) |
Guido van Rossum | eb9aca3 | 2016-05-24 16:38:22 -0700 | [diff] [blame] | 2216 | |
| 2217 | def test_type_typevar(self): |
| 2218 | |
| 2219 | class User: pass |
| 2220 | class BasicUser(User): pass |
| 2221 | class ProUser(User): pass |
| 2222 | |
| 2223 | U = TypeVar('U', bound=User) |
| 2224 | |
| 2225 | def new_user(user_class: Type[U]) -> U: |
| 2226 | return user_class() |
| 2227 | |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 2228 | new_user(BasicUser) |
Guido van Rossum | eb9aca3 | 2016-05-24 16:38:22 -0700 | [diff] [blame] | 2229 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 2230 | def test_type_optional(self): |
| 2231 | A = Optional[Type[BaseException]] |
| 2232 | |
| 2233 | def foo(a: A) -> Optional[BaseException]: |
| 2234 | if a is None: |
| 2235 | return None |
| 2236 | else: |
| 2237 | return a() |
| 2238 | |
| 2239 | assert isinstance(foo(KeyboardInterrupt), KeyboardInterrupt) |
| 2240 | assert foo(None) is None |
| 2241 | |
Guido van Rossum | eb9aca3 | 2016-05-24 16:38:22 -0700 | [diff] [blame] | 2242 | |
Guido van Rossum | 91185fe | 2016-06-08 11:19:11 -0700 | [diff] [blame] | 2243 | class NewTypeTests(BaseTestCase): |
| 2244 | |
| 2245 | def test_basic(self): |
| 2246 | UserId = NewType('UserId', int) |
| 2247 | UserName = NewType('UserName', str) |
| 2248 | self.assertIsInstance(UserId(5), int) |
| 2249 | self.assertIsInstance(UserName('Joe'), str) |
| 2250 | self.assertEqual(UserId(5) + 1, 6) |
| 2251 | |
| 2252 | def test_errors(self): |
| 2253 | UserId = NewType('UserId', int) |
| 2254 | UserName = NewType('UserName', str) |
| 2255 | with self.assertRaises(TypeError): |
| 2256 | issubclass(UserId, int) |
| 2257 | with self.assertRaises(TypeError): |
| 2258 | class D(UserName): |
| 2259 | pass |
| 2260 | |
| 2261 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2262 | class NamedTupleTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2263 | |
| 2264 | def test_basics(self): |
| 2265 | Emp = NamedTuple('Emp', [('name', str), ('id', int)]) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2266 | self.assertIsSubclass(Emp, tuple) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2267 | joe = Emp('Joe', 42) |
| 2268 | jim = Emp(name='Jim', id=1) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2269 | self.assertIsInstance(joe, Emp) |
| 2270 | self.assertIsInstance(joe, tuple) |
| 2271 | self.assertEqual(joe.name, 'Joe') |
| 2272 | self.assertEqual(joe.id, 42) |
| 2273 | self.assertEqual(jim.name, 'Jim') |
| 2274 | self.assertEqual(jim.id, 1) |
| 2275 | self.assertEqual(Emp.__name__, 'Emp') |
| 2276 | self.assertEqual(Emp._fields, ('name', 'id')) |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 2277 | self.assertEqual(Emp.__annotations__, |
| 2278 | collections.OrderedDict([('name', str), ('id', int)])) |
| 2279 | self.assertIs(Emp._field_types, Emp.__annotations__) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2280 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 2281 | def test_namedtuple_pyversion(self): |
| 2282 | if sys.version_info[:2] < (3, 6): |
| 2283 | with self.assertRaises(TypeError): |
| 2284 | NamedTuple('Name', one=int, other=str) |
| 2285 | with self.assertRaises(TypeError): |
| 2286 | class NotYet(NamedTuple): |
| 2287 | whatever = 0 |
| 2288 | |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 2289 | @skipUnless(PY36, 'Python 3.6 required') |
| 2290 | def test_annotation_usage(self): |
| 2291 | tim = CoolEmployee('Tim', 9000) |
| 2292 | self.assertIsInstance(tim, CoolEmployee) |
| 2293 | self.assertIsInstance(tim, tuple) |
| 2294 | self.assertEqual(tim.name, 'Tim') |
| 2295 | self.assertEqual(tim.cool, 9000) |
| 2296 | self.assertEqual(CoolEmployee.__name__, 'CoolEmployee') |
| 2297 | self.assertEqual(CoolEmployee._fields, ('name', 'cool')) |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 2298 | self.assertEqual(CoolEmployee.__annotations__, |
| 2299 | collections.OrderedDict(name=str, cool=int)) |
| 2300 | self.assertIs(CoolEmployee._field_types, CoolEmployee.__annotations__) |
Guido van Rossum | 0a6976d | 2016-09-11 15:34:56 -0700 | [diff] [blame] | 2301 | |
Guido van Rossum | 2f84144 | 2016-11-15 09:48:06 -0800 | [diff] [blame] | 2302 | @skipUnless(PY36, 'Python 3.6 required') |
Guido van Rossum | 3c268be | 2017-01-18 08:03:50 -0800 | [diff] [blame] | 2303 | def test_annotation_usage_with_default(self): |
| 2304 | jelle = CoolEmployeeWithDefault('Jelle') |
| 2305 | self.assertIsInstance(jelle, CoolEmployeeWithDefault) |
| 2306 | self.assertIsInstance(jelle, tuple) |
| 2307 | self.assertEqual(jelle.name, 'Jelle') |
| 2308 | self.assertEqual(jelle.cool, 0) |
| 2309 | cooler_employee = CoolEmployeeWithDefault('Sjoerd', 1) |
| 2310 | self.assertEqual(cooler_employee.cool, 1) |
| 2311 | |
| 2312 | self.assertEqual(CoolEmployeeWithDefault.__name__, 'CoolEmployeeWithDefault') |
| 2313 | self.assertEqual(CoolEmployeeWithDefault._fields, ('name', 'cool')) |
| 2314 | self.assertEqual(CoolEmployeeWithDefault._field_types, dict(name=str, cool=int)) |
| 2315 | self.assertEqual(CoolEmployeeWithDefault._field_defaults, dict(cool=0)) |
| 2316 | |
| 2317 | with self.assertRaises(TypeError): |
| 2318 | exec(""" |
| 2319 | class NonDefaultAfterDefault(NamedTuple): |
| 2320 | x: int = 3 |
| 2321 | y: int |
| 2322 | """) |
| 2323 | |
| 2324 | @skipUnless(PY36, 'Python 3.6 required') |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 2325 | def test_annotation_usage_with_methods(self): |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 2326 | self.assertEqual(XMeth(1).double(), 2) |
| 2327 | self.assertEqual(XMeth(42).x, XMeth(42)[0]) |
| 2328 | self.assertEqual(str(XRepr(42)), '42 -> 1') |
| 2329 | self.assertEqual(XRepr(1, 2) + XRepr(3), 0) |
| 2330 | |
| 2331 | with self.assertRaises(AttributeError): |
| 2332 | exec(""" |
| 2333 | class XMethBad(NamedTuple): |
| 2334 | x: int |
| 2335 | def _fields(self): |
| 2336 | return 'no chance for this' |
| 2337 | """) |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 2338 | |
Ivan Levkivskyi | f06e021 | 2017-05-02 19:14:07 +0200 | [diff] [blame] | 2339 | with self.assertRaises(AttributeError): |
| 2340 | exec(""" |
| 2341 | class XMethBad2(NamedTuple): |
| 2342 | x: int |
| 2343 | def _source(self): |
| 2344 | return 'no chance for this as well' |
| 2345 | """) |
| 2346 | |
Guido van Rossum | 95919c0 | 2017-01-22 17:47:20 -0800 | [diff] [blame] | 2347 | @skipUnless(PY36, 'Python 3.6 required') |
Guido van Rossum | 2f84144 | 2016-11-15 09:48:06 -0800 | [diff] [blame] | 2348 | def test_namedtuple_keyword_usage(self): |
| 2349 | LocalEmployee = NamedTuple("LocalEmployee", name=str, age=int) |
| 2350 | nick = LocalEmployee('Nick', 25) |
| 2351 | self.assertIsInstance(nick, tuple) |
| 2352 | self.assertEqual(nick.name, 'Nick') |
| 2353 | self.assertEqual(LocalEmployee.__name__, 'LocalEmployee') |
| 2354 | self.assertEqual(LocalEmployee._fields, ('name', 'age')) |
Guido van Rossum | 83ec302 | 2017-01-17 20:43:28 -0800 | [diff] [blame] | 2355 | self.assertEqual(LocalEmployee.__annotations__, dict(name=str, age=int)) |
| 2356 | self.assertIs(LocalEmployee._field_types, LocalEmployee.__annotations__) |
Guido van Rossum | 2f84144 | 2016-11-15 09:48:06 -0800 | [diff] [blame] | 2357 | with self.assertRaises(TypeError): |
| 2358 | NamedTuple('Name', [('x', int)], y=str) |
| 2359 | with self.assertRaises(TypeError): |
| 2360 | NamedTuple('Name', x=1, y='a') |
| 2361 | |
Guido van Rossum | 557d1eb | 2015-11-19 08:16:31 -0800 | [diff] [blame] | 2362 | def test_pickle(self): |
| 2363 | global Emp # pickle wants to reference the class by name |
| 2364 | Emp = NamedTuple('Emp', [('name', str), ('id', int)]) |
| 2365 | jane = Emp('jane', 37) |
Serhiy Storchaka | 6d9e923 | 2015-11-20 18:33:02 +0200 | [diff] [blame] | 2366 | for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
| 2367 | z = pickle.dumps(jane, proto) |
| 2368 | jane2 = pickle.loads(z) |
| 2369 | self.assertEqual(jane2, jane) |
Guido van Rossum | 557d1eb | 2015-11-19 08:16:31 -0800 | [diff] [blame] | 2370 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2371 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2372 | class IOTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2373 | |
| 2374 | def test_io(self): |
| 2375 | |
| 2376 | def stuff(a: IO) -> AnyStr: |
| 2377 | return a.readline() |
| 2378 | |
| 2379 | a = stuff.__annotations__['a'] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2380 | self.assertEqual(a.__parameters__, (AnyStr,)) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2381 | |
| 2382 | def test_textio(self): |
| 2383 | |
| 2384 | def stuff(a: TextIO) -> str: |
| 2385 | return a.readline() |
| 2386 | |
| 2387 | a = stuff.__annotations__['a'] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2388 | self.assertEqual(a.__parameters__, ()) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2389 | |
| 2390 | def test_binaryio(self): |
| 2391 | |
| 2392 | def stuff(a: BinaryIO) -> bytes: |
| 2393 | return a.readline() |
| 2394 | |
| 2395 | a = stuff.__annotations__['a'] |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2396 | self.assertEqual(a.__parameters__, ()) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2397 | |
| 2398 | def test_io_submodule(self): |
| 2399 | from typing.io import IO, TextIO, BinaryIO, __all__, __name__ |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2400 | self.assertIs(IO, typing.IO) |
| 2401 | self.assertIs(TextIO, typing.TextIO) |
| 2402 | self.assertIs(BinaryIO, typing.BinaryIO) |
| 2403 | self.assertEqual(set(__all__), set(['IO', 'TextIO', 'BinaryIO'])) |
| 2404 | self.assertEqual(__name__, 'typing.io') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2405 | |
| 2406 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2407 | class RETests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2408 | # Much of this is really testing _TypeAlias. |
| 2409 | |
| 2410 | def test_basics(self): |
| 2411 | pat = re.compile('[a-z]+', re.I) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2412 | self.assertIsSubclass(pat.__class__, Pattern) |
| 2413 | self.assertIsSubclass(type(pat), Pattern) |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 2414 | self.assertIsInstance(pat, Pattern) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2415 | |
| 2416 | mat = pat.search('12345abcde.....') |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2417 | self.assertIsSubclass(mat.__class__, Match) |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2418 | self.assertIsSubclass(type(mat), Match) |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 2419 | self.assertIsInstance(mat, Match) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2420 | |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 2421 | # these should just work |
Guido van Rossum | d7adfe1 | 2017-01-22 17:43:53 -0800 | [diff] [blame] | 2422 | Pattern[Union[str, bytes]] |
| 2423 | Match[Union[bytes, str]] |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2424 | |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 2425 | def test_alias_equality(self): |
| 2426 | self.assertEqual(Pattern[str], Pattern[str]) |
| 2427 | self.assertNotEqual(Pattern[str], Pattern[bytes]) |
| 2428 | self.assertNotEqual(Pattern[str], Match[str]) |
| 2429 | self.assertNotEqual(Pattern[str], str) |
| 2430 | |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2431 | def test_errors(self): |
| 2432 | with self.assertRaises(TypeError): |
| 2433 | # Doesn't fit AnyStr. |
| 2434 | Pattern[int] |
| 2435 | with self.assertRaises(TypeError): |
| 2436 | # Can't change type vars? |
| 2437 | Match[T] |
| 2438 | m = Match[Union[str, bytes]] |
| 2439 | with self.assertRaises(TypeError): |
| 2440 | # Too complicated? |
| 2441 | m[str] |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 2442 | with self.assertRaises(TypeError): |
| 2443 | # We don't support isinstance(). |
Guido van Rossum | d70fe63 | 2015-08-05 12:11:06 +0200 | [diff] [blame] | 2444 | isinstance(42, Pattern[str]) |
Ivan Levkivskyi | b692dc8 | 2017-02-13 22:50:14 +0100 | [diff] [blame] | 2445 | with self.assertRaises(TypeError): |
| 2446 | # We don't support issubclass(). |
| 2447 | issubclass(Pattern[bytes], Pattern[str]) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2448 | |
| 2449 | def test_repr(self): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2450 | self.assertEqual(repr(Pattern), 'Pattern[~AnyStr]') |
| 2451 | self.assertEqual(repr(Pattern[str]), 'Pattern[str]') |
| 2452 | self.assertEqual(repr(Pattern[bytes]), 'Pattern[bytes]') |
| 2453 | self.assertEqual(repr(Match), 'Match[~AnyStr]') |
| 2454 | self.assertEqual(repr(Match[str]), 'Match[str]') |
| 2455 | self.assertEqual(repr(Match[bytes]), 'Match[bytes]') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2456 | |
| 2457 | def test_re_submodule(self): |
| 2458 | from typing.re import Match, Pattern, __all__, __name__ |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2459 | self.assertIs(Match, typing.Match) |
| 2460 | self.assertIs(Pattern, typing.Pattern) |
| 2461 | self.assertEqual(set(__all__), set(['Match', 'Pattern'])) |
| 2462 | self.assertEqual(__name__, 'typing.re') |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2463 | |
| 2464 | def test_cannot_subclass(self): |
| 2465 | with self.assertRaises(TypeError) as ex: |
| 2466 | |
| 2467 | class A(typing.Match): |
| 2468 | pass |
| 2469 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2470 | self.assertEqual(str(ex.exception), |
Guido van Rossum | 4cefe74 | 2016-09-27 15:20:12 -0700 | [diff] [blame] | 2471 | "Cannot subclass typing._TypeAlias") |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2472 | |
| 2473 | |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2474 | class AllTests(BaseTestCase): |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2475 | """Tests for __all__.""" |
| 2476 | |
| 2477 | def test_all(self): |
| 2478 | from typing import __all__ as a |
| 2479 | # Just spot-check the first and last of every category. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2480 | self.assertIn('AbstractSet', a) |
| 2481 | self.assertIn('ValuesView', a) |
| 2482 | self.assertIn('cast', a) |
| 2483 | self.assertIn('overload', a) |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2484 | if hasattr(contextlib, 'AbstractContextManager'): |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2485 | self.assertIn('ContextManager', a) |
Guido van Rossum | bd5b9a0 | 2016-04-05 08:28:52 -0700 | [diff] [blame] | 2486 | # Check that io and re are not exported. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2487 | self.assertNotIn('io', a) |
| 2488 | self.assertNotIn('re', a) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2489 | # Spot-check that stdlib modules aren't exported. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2490 | self.assertNotIn('os', a) |
| 2491 | self.assertNotIn('sys', a) |
Guido van Rossum | 6aafbd4 | 2016-04-17 17:52:05 -0700 | [diff] [blame] | 2492 | # Check that Text is defined. |
Zachary Ware | 75b1bdc | 2016-04-19 11:49:37 -0500 | [diff] [blame] | 2493 | self.assertIn('Text', a) |
Ivan Levkivskyi | f06e021 | 2017-05-02 19:14:07 +0200 | [diff] [blame] | 2494 | # Check previously missing classes. |
| 2495 | self.assertIn('SupportsBytes', a) |
| 2496 | self.assertIn('SupportsComplex', a) |
Guido van Rossum | 46dbb7d | 2015-05-22 10:14:11 -0700 | [diff] [blame] | 2497 | |
| 2498 | |
| 2499 | if __name__ == '__main__': |
| 2500 | main() |