Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 1 | import parser |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 2 | import unittest |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 3 | import operator |
Jesus Cea | e9c5318 | 2012-08-03 14:28:37 +0200 | [diff] [blame] | 4 | import struct |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 5 | from test import support |
Berker Peksag | ce64391 | 2015-05-06 06:33:17 +0300 | [diff] [blame] | 6 | from test.support.script_helper import assert_python_failure |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 7 | |
| 8 | # |
| 9 | # First, we test that we can generate trees from valid source fragments, |
| 10 | # and that these valid trees are indeed allowed by the tree-loading side |
| 11 | # of the parser module. |
| 12 | # |
| 13 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 14 | class RoundtripLegalSyntaxTestCase(unittest.TestCase): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 15 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 16 | def roundtrip(self, f, s): |
| 17 | st1 = f(s) |
| 18 | t = st1.totuple() |
| 19 | try: |
Fred Drake | 6e4f2c0 | 2001-07-17 19:33:25 +0000 | [diff] [blame] | 20 | st2 = parser.sequence2st(t) |
Guido van Rossum | b940e11 | 2007-01-10 16:19:56 +0000 | [diff] [blame] | 21 | except parser.ParserError as why: |
Anthony Baxter | c2a5a63 | 2004-08-02 06:10:11 +0000 | [diff] [blame] | 22 | self.fail("could not roundtrip %r: %s" % (s, why)) |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 23 | |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 24 | self.assertEqual(t, st2.totuple(), |
| 25 | "could not re-generate syntax tree") |
Fred Drake | 28f739a | 2000-08-25 22:42:40 +0000 | [diff] [blame] | 26 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 27 | def check_expr(self, s): |
| 28 | self.roundtrip(parser.expr, s) |
Fred Drake | 28f739a | 2000-08-25 22:42:40 +0000 | [diff] [blame] | 29 | |
Benjamin Peterson | f216c94 | 2008-10-31 02:28:05 +0000 | [diff] [blame] | 30 | def test_flags_passed(self): |
| 31 | # The unicode literals flags has to be passed from the paser to AST |
| 32 | # generation. |
| 33 | suite = parser.suite("from __future__ import unicode_literals; x = ''") |
| 34 | code = suite.compile() |
| 35 | scope = {} |
| 36 | exec(code, {}, scope) |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 37 | self.assertIsInstance(scope["x"], str) |
Benjamin Peterson | f216c94 | 2008-10-31 02:28:05 +0000 | [diff] [blame] | 38 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 39 | def check_suite(self, s): |
| 40 | self.roundtrip(parser.suite, s) |
Fred Drake | 28f739a | 2000-08-25 22:42:40 +0000 | [diff] [blame] | 41 | |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 42 | def test_yield_statement(self): |
Tim Peters | 496563a | 2002-04-01 00:28:59 +0000 | [diff] [blame] | 43 | self.check_suite("def f(): yield 1") |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 44 | self.check_suite("def f(): yield") |
| 45 | self.check_suite("def f(): x += yield") |
| 46 | self.check_suite("def f(): x = yield 1") |
| 47 | self.check_suite("def f(): x = y = yield 1") |
| 48 | self.check_suite("def f(): x = yield") |
| 49 | self.check_suite("def f(): x = y = yield") |
| 50 | self.check_suite("def f(): 1 + (yield)*2") |
| 51 | self.check_suite("def f(): (yield 1)*2") |
Tim Peters | 496563a | 2002-04-01 00:28:59 +0000 | [diff] [blame] | 52 | self.check_suite("def f(): return; yield 1") |
| 53 | self.check_suite("def f(): yield 1; return") |
Nick Coghlan | 1f7ce62 | 2012-01-13 21:43:40 +1000 | [diff] [blame] | 54 | self.check_suite("def f(): yield from 1") |
| 55 | self.check_suite("def f(): x = yield from 1") |
| 56 | self.check_suite("def f(): f((yield from 1))") |
| 57 | self.check_suite("def f(): yield 1; return 1") |
Tim Peters | 496563a | 2002-04-01 00:28:59 +0000 | [diff] [blame] | 58 | self.check_suite("def f():\n" |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 59 | " for x in range(30):\n" |
| 60 | " yield x\n") |
Phillip J. Eby | 0d6615f | 2005-08-02 00:46:46 +0000 | [diff] [blame] | 61 | self.check_suite("def f():\n" |
| 62 | " if (yield):\n" |
| 63 | " yield x\n") |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 64 | |
Yury Selivanov | 7544508 | 2015-05-11 22:57:16 -0400 | [diff] [blame] | 65 | def test_await_statement(self): |
| 66 | self.check_suite("async def f():\n await smth()") |
| 67 | self.check_suite("async def f():\n foo = await smth()") |
| 68 | self.check_suite("async def f():\n foo, bar = await smth()") |
| 69 | self.check_suite("async def f():\n (await smth())") |
| 70 | self.check_suite("async def f():\n foo((await smth()))") |
| 71 | self.check_suite("async def f():\n await foo(); return 42") |
| 72 | |
| 73 | def test_async_with_statement(self): |
| 74 | self.check_suite("async def f():\n async with 1: pass") |
| 75 | self.check_suite("async def f():\n async with a as b, c as d: pass") |
| 76 | |
| 77 | def test_async_for_statement(self): |
| 78 | self.check_suite("async def f():\n async for i in (): pass") |
| 79 | self.check_suite("async def f():\n async for i, b in (): pass") |
| 80 | |
Mark Dickinson | 407b3bd | 2012-04-29 22:18:31 +0100 | [diff] [blame] | 81 | def test_nonlocal_statement(self): |
| 82 | self.check_suite("def f():\n" |
| 83 | " x = 0\n" |
| 84 | " def g():\n" |
| 85 | " nonlocal x\n") |
| 86 | self.check_suite("def f():\n" |
| 87 | " x = y = 0\n" |
| 88 | " def g():\n" |
| 89 | " nonlocal x, y\n") |
| 90 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 91 | def test_expressions(self): |
| 92 | self.check_expr("foo(1)") |
| 93 | self.check_expr("[1, 2, 3]") |
| 94 | self.check_expr("[x**3 for x in range(20)]") |
| 95 | self.check_expr("[x**3 for x in range(20) if x % 3]") |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 96 | self.check_expr("[x**3 for x in range(20) if x % 2 if x % 3]") |
| 97 | self.check_expr("list(x**3 for x in range(20))") |
| 98 | self.check_expr("list(x**3 for x in range(20) if x % 3)") |
| 99 | self.check_expr("list(x**3 for x in range(20) if x % 2 if x % 3)") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 100 | self.check_expr("foo(*args)") |
| 101 | self.check_expr("foo(*args, **kw)") |
| 102 | self.check_expr("foo(**kw)") |
| 103 | self.check_expr("foo(key=value)") |
| 104 | self.check_expr("foo(key=value, *args)") |
| 105 | self.check_expr("foo(key=value, *args, **kw)") |
| 106 | self.check_expr("foo(key=value, **kw)") |
| 107 | self.check_expr("foo(a, b, c, *args)") |
| 108 | self.check_expr("foo(a, b, c, *args, **kw)") |
| 109 | self.check_expr("foo(a, b, c, **kw)") |
Benjamin Peterson | 3938a90 | 2008-08-20 02:33:00 +0000 | [diff] [blame] | 110 | self.check_expr("foo(a, *args, keyword=23)") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 111 | self.check_expr("foo + bar") |
Michael W. Hudson | 5e83b7a | 2003-01-29 14:20:23 +0000 | [diff] [blame] | 112 | self.check_expr("foo - bar") |
| 113 | self.check_expr("foo * bar") |
| 114 | self.check_expr("foo / bar") |
| 115 | self.check_expr("foo // bar") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 116 | self.check_expr("lambda: 0") |
| 117 | self.check_expr("lambda x: 0") |
| 118 | self.check_expr("lambda *y: 0") |
| 119 | self.check_expr("lambda *y, **z: 0") |
| 120 | self.check_expr("lambda **z: 0") |
| 121 | self.check_expr("lambda x, y: 0") |
| 122 | self.check_expr("lambda foo=bar: 0") |
| 123 | self.check_expr("lambda foo=bar, spaz=nifty+spit: 0") |
| 124 | self.check_expr("lambda foo=bar, **z: 0") |
| 125 | self.check_expr("lambda foo=bar, blaz=blat+2, **z: 0") |
| 126 | self.check_expr("lambda foo=bar, blaz=blat+2, *y, **z: 0") |
| 127 | self.check_expr("lambda x, *y, **z: 0") |
Raymond Hettinger | 354433a | 2004-05-19 08:20:33 +0000 | [diff] [blame] | 128 | self.check_expr("(x for x in range(10))") |
| 129 | self.check_expr("foo(x for x in range(10))") |
Mark Dickinson | da029fb | 2012-05-07 17:24:04 +0100 | [diff] [blame] | 130 | self.check_expr("...") |
| 131 | self.check_expr("a[...]") |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 132 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 133 | def test_simple_expression(self): |
| 134 | # expr_stmt |
| 135 | self.check_suite("a") |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 136 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 137 | def test_simple_assignments(self): |
| 138 | self.check_suite("a = b") |
| 139 | self.check_suite("a = b = c = d = e") |
Fred Drake | 28f739a | 2000-08-25 22:42:40 +0000 | [diff] [blame] | 140 | |
Yury Selivanov | f8cb8a1 | 2016-09-08 20:50:03 -0700 | [diff] [blame] | 141 | def test_var_annot(self): |
| 142 | self.check_suite("x: int = 5") |
| 143 | self.check_suite("y: List[T] = []; z: [list] = fun()") |
| 144 | self.check_suite("x: tuple = (1, 2)") |
| 145 | self.check_suite("d[f()]: int = 42") |
| 146 | self.check_suite("f(d[x]): str = 'abc'") |
| 147 | self.check_suite("x.y.z.w: complex = 42j") |
| 148 | self.check_suite("x: int") |
| 149 | self.check_suite("def f():\n" |
| 150 | " x: str\n" |
| 151 | " y: int = 5\n") |
| 152 | self.check_suite("class C:\n" |
| 153 | " x: str\n" |
| 154 | " y: int = 5\n") |
| 155 | self.check_suite("class C:\n" |
| 156 | " def __init__(self, x: int) -> None:\n" |
| 157 | " self.x: int = x\n") |
| 158 | # double check for nonsense |
| 159 | with self.assertRaises(SyntaxError): |
| 160 | exec("2+2: int", {}, {}) |
| 161 | with self.assertRaises(SyntaxError): |
| 162 | exec("[]: int = 5", {}, {}) |
| 163 | with self.assertRaises(SyntaxError): |
| 164 | exec("x, *y, z: int = range(5)", {}, {}) |
| 165 | with self.assertRaises(SyntaxError): |
| 166 | exec("t: tuple = 1, 2", {}, {}) |
| 167 | with self.assertRaises(SyntaxError): |
| 168 | exec("u = v: int", {}, {}) |
| 169 | with self.assertRaises(SyntaxError): |
| 170 | exec("False: int", {}, {}) |
| 171 | with self.assertRaises(SyntaxError): |
| 172 | exec("x.False: int", {}, {}) |
| 173 | with self.assertRaises(SyntaxError): |
| 174 | exec("x.y,: int", {}, {}) |
| 175 | with self.assertRaises(SyntaxError): |
| 176 | exec("[0]: int", {}, {}) |
| 177 | with self.assertRaises(SyntaxError): |
| 178 | exec("f(): int", {}, {}) |
| 179 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 180 | def test_simple_augmented_assignments(self): |
| 181 | self.check_suite("a += b") |
| 182 | self.check_suite("a -= b") |
| 183 | self.check_suite("a *= b") |
| 184 | self.check_suite("a /= b") |
Michael W. Hudson | 5e83b7a | 2003-01-29 14:20:23 +0000 | [diff] [blame] | 185 | self.check_suite("a //= b") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 186 | self.check_suite("a %= b") |
| 187 | self.check_suite("a &= b") |
| 188 | self.check_suite("a |= b") |
| 189 | self.check_suite("a ^= b") |
| 190 | self.check_suite("a <<= b") |
| 191 | self.check_suite("a >>= b") |
| 192 | self.check_suite("a **= b") |
Fred Drake | e3fb18c | 2001-01-07 06:02:19 +0000 | [diff] [blame] | 193 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 194 | def test_function_defs(self): |
| 195 | self.check_suite("def f(): pass") |
| 196 | self.check_suite("def f(*args): pass") |
| 197 | self.check_suite("def f(*args, **kw): pass") |
| 198 | self.check_suite("def f(**kw): pass") |
| 199 | self.check_suite("def f(foo=bar): pass") |
| 200 | self.check_suite("def f(foo=bar, *args): pass") |
| 201 | self.check_suite("def f(foo=bar, *args, **kw): pass") |
| 202 | self.check_suite("def f(foo=bar, **kw): pass") |
Fred Drake | e3fb18c | 2001-01-07 06:02:19 +0000 | [diff] [blame] | 203 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 204 | self.check_suite("def f(a, b): pass") |
| 205 | self.check_suite("def f(a, b, *args): pass") |
| 206 | self.check_suite("def f(a, b, *args, **kw): pass") |
| 207 | self.check_suite("def f(a, b, **kw): pass") |
| 208 | self.check_suite("def f(a, b, foo=bar): pass") |
| 209 | self.check_suite("def f(a, b, foo=bar, *args): pass") |
| 210 | self.check_suite("def f(a, b, foo=bar, *args, **kw): pass") |
| 211 | self.check_suite("def f(a, b, foo=bar, **kw): pass") |
Fred Drake | e3fb18c | 2001-01-07 06:02:19 +0000 | [diff] [blame] | 212 | |
Anthony Baxter | c2a5a63 | 2004-08-02 06:10:11 +0000 | [diff] [blame] | 213 | self.check_suite("@staticmethod\n" |
| 214 | "def f(): pass") |
| 215 | self.check_suite("@staticmethod\n" |
| 216 | "@funcattrs(x, y)\n" |
| 217 | "def f(): pass") |
| 218 | self.check_suite("@funcattrs()\n" |
| 219 | "def f(): pass") |
| 220 | |
Mark Dickinson | ea7e9f9 | 2012-04-29 18:34:40 +0100 | [diff] [blame] | 221 | # keyword-only arguments |
| 222 | self.check_suite("def f(*, a): pass") |
| 223 | self.check_suite("def f(*, a = 5): pass") |
| 224 | self.check_suite("def f(*, a = 5, b): pass") |
| 225 | self.check_suite("def f(*, a, b = 5): pass") |
| 226 | self.check_suite("def f(*, a, b = 5, **kwds): pass") |
| 227 | self.check_suite("def f(*args, a): pass") |
| 228 | self.check_suite("def f(*args, a = 5): pass") |
| 229 | self.check_suite("def f(*args, a = 5, b): pass") |
| 230 | self.check_suite("def f(*args, a, b = 5): pass") |
| 231 | self.check_suite("def f(*args, a, b = 5, **kwds): pass") |
| 232 | |
| 233 | # function annotations |
| 234 | self.check_suite("def f(a: int): pass") |
| 235 | self.check_suite("def f(a: int = 5): pass") |
| 236 | self.check_suite("def f(*args: list): pass") |
| 237 | self.check_suite("def f(**kwds: dict): pass") |
| 238 | self.check_suite("def f(*, a: int): pass") |
| 239 | self.check_suite("def f(*, a: int = 5): pass") |
| 240 | self.check_suite("def f() -> int: pass") |
| 241 | |
Brett Cannon | f418991 | 2005-04-09 02:30:16 +0000 | [diff] [blame] | 242 | def test_class_defs(self): |
| 243 | self.check_suite("class foo():pass") |
Guido van Rossum | fc158e2 | 2007-11-15 19:17:28 +0000 | [diff] [blame] | 244 | self.check_suite("class foo(object):pass") |
Mark Dickinson | 2bd61a9 | 2010-07-04 16:37:31 +0000 | [diff] [blame] | 245 | self.check_suite("@class_decorator\n" |
| 246 | "class foo():pass") |
| 247 | self.check_suite("@class_decorator(arg)\n" |
| 248 | "class foo():pass") |
| 249 | self.check_suite("@decorator1\n" |
| 250 | "@decorator2\n" |
| 251 | "class foo():pass") |
Tim Peters | e890682 | 2005-04-20 17:45:13 +0000 | [diff] [blame] | 252 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 253 | def test_import_from_statement(self): |
| 254 | self.check_suite("from sys.path import *") |
| 255 | self.check_suite("from sys.path import dirname") |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 256 | self.check_suite("from sys.path import (dirname)") |
| 257 | self.check_suite("from sys.path import (dirname,)") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 258 | self.check_suite("from sys.path import dirname as my_dirname") |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 259 | self.check_suite("from sys.path import (dirname as my_dirname)") |
| 260 | self.check_suite("from sys.path import (dirname as my_dirname,)") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 261 | self.check_suite("from sys.path import dirname, basename") |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 262 | self.check_suite("from sys.path import (dirname, basename)") |
| 263 | self.check_suite("from sys.path import (dirname, basename,)") |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 264 | self.check_suite( |
| 265 | "from sys.path import dirname as my_dirname, basename") |
| 266 | self.check_suite( |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 267 | "from sys.path import (dirname as my_dirname, basename)") |
| 268 | self.check_suite( |
| 269 | "from sys.path import (dirname as my_dirname, basename,)") |
| 270 | self.check_suite( |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 271 | "from sys.path import dirname, basename as my_basename") |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 272 | self.check_suite( |
| 273 | "from sys.path import (dirname, basename as my_basename)") |
| 274 | self.check_suite( |
| 275 | "from sys.path import (dirname, basename as my_basename,)") |
Benjamin Peterson | c0747cf | 2008-11-03 20:31:38 +0000 | [diff] [blame] | 276 | self.check_suite("from .bogus import x") |
Fred Drake | e3fb18c | 2001-01-07 06:02:19 +0000 | [diff] [blame] | 277 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 278 | def test_basic_import_statement(self): |
| 279 | self.check_suite("import sys") |
| 280 | self.check_suite("import sys as system") |
| 281 | self.check_suite("import sys, math") |
| 282 | self.check_suite("import sys as system, math") |
| 283 | self.check_suite("import sys, math as my_math") |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 284 | |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 285 | def test_relative_imports(self): |
| 286 | self.check_suite("from . import name") |
| 287 | self.check_suite("from .. import name") |
Mark Dickinson | feb3b75 | 2010-07-04 18:38:57 +0000 | [diff] [blame] | 288 | # check all the way up to '....', since '...' is tokenized |
| 289 | # differently from '.' (it's an ellipsis token). |
| 290 | self.check_suite("from ... import name") |
| 291 | self.check_suite("from .... import name") |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 292 | self.check_suite("from .pkg import name") |
| 293 | self.check_suite("from ..pkg import name") |
Mark Dickinson | feb3b75 | 2010-07-04 18:38:57 +0000 | [diff] [blame] | 294 | self.check_suite("from ...pkg import name") |
| 295 | self.check_suite("from ....pkg import name") |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 296 | |
Neal Norwitz | 9caf9c0 | 2003-02-10 01:54:06 +0000 | [diff] [blame] | 297 | def test_pep263(self): |
| 298 | self.check_suite("# -*- coding: iso-8859-1 -*-\n" |
| 299 | "pass\n") |
| 300 | |
| 301 | def test_assert(self): |
| 302 | self.check_suite("assert alo < ahi and blo < bhi\n") |
| 303 | |
Benjamin Peterson | 4469d0c | 2008-11-30 22:46:23 +0000 | [diff] [blame] | 304 | def test_with(self): |
| 305 | self.check_suite("with open('x'): pass\n") |
| 306 | self.check_suite("with open('x') as f: pass\n") |
Georg Brandl | 0c31562 | 2009-05-25 21:10:36 +0000 | [diff] [blame] | 307 | self.check_suite("with open('x') as f, open('y') as g: pass\n") |
Benjamin Peterson | 4469d0c | 2008-11-30 22:46:23 +0000 | [diff] [blame] | 308 | |
Georg Brandl | eee3116 | 2008-12-07 15:15:22 +0000 | [diff] [blame] | 309 | def test_try_stmt(self): |
| 310 | self.check_suite("try: pass\nexcept: pass\n") |
| 311 | self.check_suite("try: pass\nfinally: pass\n") |
| 312 | self.check_suite("try: pass\nexcept A: pass\nfinally: pass\n") |
| 313 | self.check_suite("try: pass\nexcept A: pass\nexcept: pass\n" |
| 314 | "finally: pass\n") |
| 315 | self.check_suite("try: pass\nexcept: pass\nelse: pass\n") |
| 316 | self.check_suite("try: pass\nexcept: pass\nelse: pass\n" |
| 317 | "finally: pass\n") |
| 318 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 319 | def test_position(self): |
| 320 | # An absolutely minimal test of position information. Better |
| 321 | # tests would be a big project. |
Benjamin Peterson | 8f326b2 | 2009-12-13 02:10:36 +0000 | [diff] [blame] | 322 | code = "def f(x):\n return x + 1" |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 323 | st1 = parser.suite(code) |
| 324 | st2 = st1.totuple(line_info=1, col_info=1) |
| 325 | |
| 326 | def walk(tree): |
| 327 | node_type = tree[0] |
| 328 | next = tree[1] |
| 329 | if isinstance(next, tuple): |
| 330 | for elt in tree[1:]: |
| 331 | for x in walk(elt): |
| 332 | yield x |
| 333 | else: |
| 334 | yield tree |
| 335 | |
| 336 | terminals = list(walk(st2)) |
| 337 | self.assertEqual([ |
| 338 | (1, 'def', 1, 0), |
| 339 | (1, 'f', 1, 4), |
| 340 | (7, '(', 1, 5), |
| 341 | (1, 'x', 1, 6), |
| 342 | (8, ')', 1, 7), |
| 343 | (11, ':', 1, 8), |
| 344 | (4, '', 1, 9), |
| 345 | (5, '', 2, -1), |
| 346 | (1, 'return', 2, 4), |
| 347 | (1, 'x', 2, 11), |
| 348 | (14, '+', 2, 13), |
| 349 | (2, '1', 2, 15), |
| 350 | (4, '', 2, 16), |
Benjamin Peterson | 8f326b2 | 2009-12-13 02:10:36 +0000 | [diff] [blame] | 351 | (6, '', 2, -1), |
| 352 | (4, '', 2, -1), |
| 353 | (0, '', 2, -1)], |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 354 | terminals) |
| 355 | |
Benjamin Peterson | 4905e80 | 2009-09-27 02:43:28 +0000 | [diff] [blame] | 356 | def test_extended_unpacking(self): |
| 357 | self.check_suite("*a = y") |
| 358 | self.check_suite("x, *b, = m") |
| 359 | self.check_suite("[*a, *b] = y") |
| 360 | self.check_suite("for [*x, b] in x: pass") |
| 361 | |
Mark Dickinson | cf360b9 | 2012-05-07 12:01:27 +0100 | [diff] [blame] | 362 | def test_raise_statement(self): |
| 363 | self.check_suite("raise\n") |
| 364 | self.check_suite("raise e\n") |
| 365 | self.check_suite("try:\n" |
| 366 | " suite\n" |
| 367 | "except Exception as e:\n" |
| 368 | " raise ValueError from e\n") |
| 369 | |
Benjamin Peterson | 025e9eb | 2015-05-05 20:16:41 -0400 | [diff] [blame] | 370 | def test_list_displays(self): |
| 371 | self.check_expr('[]') |
| 372 | self.check_expr('[*{2}, 3, *[4]]') |
| 373 | |
Mark Dickinson | 11c1dee | 2012-05-07 16:34:34 +0100 | [diff] [blame] | 374 | def test_set_displays(self): |
Benjamin Peterson | 025e9eb | 2015-05-05 20:16:41 -0400 | [diff] [blame] | 375 | self.check_expr('{*{2}, 3, *[4]}') |
Mark Dickinson | 11c1dee | 2012-05-07 16:34:34 +0100 | [diff] [blame] | 376 | self.check_expr('{2}') |
| 377 | self.check_expr('{2,}') |
| 378 | self.check_expr('{2, 3}') |
| 379 | self.check_expr('{2, 3,}') |
| 380 | |
| 381 | def test_dict_displays(self): |
| 382 | self.check_expr('{}') |
| 383 | self.check_expr('{a:b}') |
| 384 | self.check_expr('{a:b,}') |
| 385 | self.check_expr('{a:b, c:d}') |
| 386 | self.check_expr('{a:b, c:d,}') |
Benjamin Peterson | 025e9eb | 2015-05-05 20:16:41 -0400 | [diff] [blame] | 387 | self.check_expr('{**{}}') |
| 388 | self.check_expr('{**{}, 3:4, **{5:6, 7:8}}') |
| 389 | |
| 390 | def test_argument_unpacking(self): |
Yury Selivanov | 50a2614 | 2015-08-05 17:59:45 -0400 | [diff] [blame] | 391 | self.check_expr("f(*a, **b)") |
Benjamin Peterson | 025e9eb | 2015-05-05 20:16:41 -0400 | [diff] [blame] | 392 | self.check_expr('f(a, *b, *c, *d)') |
| 393 | self.check_expr('f(**a, **b)') |
| 394 | self.check_expr('f(2, *a, *b, **b, **c, **d)') |
Yury Selivanov | 50a2614 | 2015-08-05 17:59:45 -0400 | [diff] [blame] | 395 | self.check_expr("f(*b, *() or () and (), **{} and {}, **() or {})") |
Mark Dickinson | 11c1dee | 2012-05-07 16:34:34 +0100 | [diff] [blame] | 396 | |
| 397 | def test_set_comprehensions(self): |
| 398 | self.check_expr('{x for x in seq}') |
| 399 | self.check_expr('{f(x) for x in seq}') |
| 400 | self.check_expr('{f(x) for x in seq if condition(x)}') |
| 401 | |
| 402 | def test_dict_comprehensions(self): |
| 403 | self.check_expr('{x:x for x in seq}') |
| 404 | self.check_expr('{x**2:x[3] for x in seq if condition(x)}') |
| 405 | self.check_expr('{x:x for x in seq1 for y in seq2 if condition(x, y)}') |
| 406 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 407 | |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 408 | # |
| 409 | # Second, we take *invalid* trees and make sure we get ParserError |
| 410 | # rejections for them. |
| 411 | # |
| 412 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 413 | class IllegalSyntaxTestCase(unittest.TestCase): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 414 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 415 | def check_bad_tree(self, tree, label): |
| 416 | try: |
Fred Drake | 6e4f2c0 | 2001-07-17 19:33:25 +0000 | [diff] [blame] | 417 | parser.sequence2st(tree) |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 418 | except parser.ParserError: |
| 419 | pass |
| 420 | else: |
| 421 | self.fail("did not detect invalid tree for %r" % label) |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 422 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 423 | def test_junk(self): |
| 424 | # not even remotely valid: |
| 425 | self.check_bad_tree((1, 2, 3), "<junk>") |
| 426 | |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 427 | def test_illegal_yield_1(self): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 428 | # Illegal yield statement: def f(): return 1; yield 1 |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 429 | tree = \ |
| 430 | (257, |
| 431 | (264, |
| 432 | (285, |
| 433 | (259, |
| 434 | (1, 'def'), |
| 435 | (1, 'f'), |
| 436 | (260, (7, '('), (8, ')')), |
| 437 | (11, ':'), |
| 438 | (291, |
| 439 | (4, ''), |
| 440 | (5, ''), |
| 441 | (264, |
| 442 | (265, |
| 443 | (266, |
| 444 | (272, |
| 445 | (275, |
| 446 | (1, 'return'), |
| 447 | (313, |
| 448 | (292, |
| 449 | (293, |
| 450 | (294, |
| 451 | (295, |
| 452 | (297, |
| 453 | (298, |
| 454 | (299, |
| 455 | (300, |
| 456 | (301, |
| 457 | (302, (303, (304, (305, (2, '1')))))))))))))))))), |
| 458 | (264, |
| 459 | (265, |
| 460 | (266, |
| 461 | (272, |
| 462 | (276, |
| 463 | (1, 'yield'), |
| 464 | (313, |
| 465 | (292, |
| 466 | (293, |
| 467 | (294, |
| 468 | (295, |
| 469 | (297, |
| 470 | (298, |
| 471 | (299, |
| 472 | (300, |
| 473 | (301, |
| 474 | (302, |
| 475 | (303, (304, (305, (2, '1')))))))))))))))))), |
| 476 | (4, ''))), |
| 477 | (6, ''))))), |
| 478 | (4, ''), |
| 479 | (0, '')))) |
| 480 | self.check_bad_tree(tree, "def f():\n return 1\n yield 1") |
| 481 | |
| 482 | def test_illegal_yield_2(self): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 483 | # Illegal return in generator: def f(): return 1; yield 1 |
Fred Drake | cf580c7 | 2001-07-17 03:01:29 +0000 | [diff] [blame] | 484 | tree = \ |
| 485 | (257, |
| 486 | (264, |
| 487 | (265, |
| 488 | (266, |
| 489 | (278, |
| 490 | (1, 'from'), |
| 491 | (281, (1, '__future__')), |
| 492 | (1, 'import'), |
| 493 | (279, (1, 'generators')))), |
| 494 | (4, ''))), |
| 495 | (264, |
| 496 | (285, |
| 497 | (259, |
| 498 | (1, 'def'), |
| 499 | (1, 'f'), |
| 500 | (260, (7, '('), (8, ')')), |
| 501 | (11, ':'), |
| 502 | (291, |
| 503 | (4, ''), |
| 504 | (5, ''), |
| 505 | (264, |
| 506 | (265, |
| 507 | (266, |
| 508 | (272, |
| 509 | (275, |
| 510 | (1, 'return'), |
| 511 | (313, |
| 512 | (292, |
| 513 | (293, |
| 514 | (294, |
| 515 | (295, |
| 516 | (297, |
| 517 | (298, |
| 518 | (299, |
| 519 | (300, |
| 520 | (301, |
| 521 | (302, (303, (304, (305, (2, '1')))))))))))))))))), |
| 522 | (264, |
| 523 | (265, |
| 524 | (266, |
| 525 | (272, |
| 526 | (276, |
| 527 | (1, 'yield'), |
| 528 | (313, |
| 529 | (292, |
| 530 | (293, |
| 531 | (294, |
| 532 | (295, |
| 533 | (297, |
| 534 | (298, |
| 535 | (299, |
| 536 | (300, |
| 537 | (301, |
| 538 | (302, |
| 539 | (303, (304, (305, (2, '1')))))))))))))))))), |
| 540 | (4, ''))), |
| 541 | (6, ''))))), |
| 542 | (4, ''), |
| 543 | (0, '')))) |
| 544 | self.check_bad_tree(tree, "def f():\n return 1\n yield 1") |
| 545 | |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 546 | def test_a_comma_comma_c(self): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 547 | # Illegal input: a,,c |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 548 | tree = \ |
| 549 | (258, |
| 550 | (311, |
| 551 | (290, |
| 552 | (291, |
| 553 | (292, |
| 554 | (293, |
| 555 | (295, |
| 556 | (296, |
| 557 | (297, |
| 558 | (298, (299, (300, (301, (302, (303, (1, 'a')))))))))))))), |
| 559 | (12, ','), |
| 560 | (12, ','), |
| 561 | (290, |
| 562 | (291, |
| 563 | (292, |
| 564 | (293, |
| 565 | (295, |
| 566 | (296, |
| 567 | (297, |
| 568 | (298, (299, (300, (301, (302, (303, (1, 'c'))))))))))))))), |
| 569 | (4, ''), |
| 570 | (0, '')) |
| 571 | self.check_bad_tree(tree, "a,,c") |
| 572 | |
| 573 | def test_illegal_operator(self): |
Guido van Rossum | 32c2ae7 | 2002-08-22 19:45:32 +0000 | [diff] [blame] | 574 | # Illegal input: a $= b |
Fred Drake | 58422e5 | 2001-06-04 03:56:24 +0000 | [diff] [blame] | 575 | tree = \ |
| 576 | (257, |
| 577 | (264, |
| 578 | (265, |
| 579 | (266, |
| 580 | (267, |
| 581 | (312, |
| 582 | (291, |
| 583 | (292, |
| 584 | (293, |
| 585 | (294, |
| 586 | (296, |
| 587 | (297, |
| 588 | (298, |
| 589 | (299, |
| 590 | (300, (301, (302, (303, (304, (1, 'a'))))))))))))))), |
| 591 | (268, (37, '$=')), |
| 592 | (312, |
| 593 | (291, |
| 594 | (292, |
| 595 | (293, |
| 596 | (294, |
| 597 | (296, |
| 598 | (297, |
| 599 | (298, |
| 600 | (299, |
| 601 | (300, (301, (302, (303, (304, (1, 'b'))))))))))))))))), |
| 602 | (4, ''))), |
| 603 | (0, '')) |
| 604 | self.check_bad_tree(tree, "a $= b") |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 605 | |
Neal Norwitz | 9caf9c0 | 2003-02-10 01:54:06 +0000 | [diff] [blame] | 606 | def test_malformed_global(self): |
| 607 | #doesn't have global keyword in ast |
| 608 | tree = (257, |
| 609 | (264, |
| 610 | (265, |
| 611 | (266, |
| 612 | (282, (1, 'foo'))), (4, ''))), |
| 613 | (4, ''), |
Tim Peters | f2715e0 | 2003-02-19 02:35:07 +0000 | [diff] [blame] | 614 | (0, '')) |
Neal Norwitz | 9caf9c0 | 2003-02-10 01:54:06 +0000 | [diff] [blame] | 615 | self.check_bad_tree(tree, "malformed global ast") |
Fred Drake | 79ca79d | 2000-08-21 22:30:53 +0000 | [diff] [blame] | 616 | |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 617 | def test_missing_import_source(self): |
Mark Dickinson | 3445b48 | 2010-07-04 18:15:26 +0000 | [diff] [blame] | 618 | # from import fred |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 619 | tree = \ |
| 620 | (257, |
Mark Dickinson | 3445b48 | 2010-07-04 18:15:26 +0000 | [diff] [blame] | 621 | (268, |
| 622 | (269, |
| 623 | (270, |
| 624 | (282, |
| 625 | (284, (1, 'from'), (1, 'import'), |
| 626 | (287, (285, (1, 'fred')))))), |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 627 | (4, ''))), |
| 628 | (4, ''), (0, '')) |
Mark Dickinson | 3445b48 | 2010-07-04 18:15:26 +0000 | [diff] [blame] | 629 | self.check_bad_tree(tree, "from import fred") |
Mark Dickinson | 2cc8a5e | 2010-07-04 18:11:51 +0000 | [diff] [blame] | 630 | |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 631 | |
| 632 | class CompileTestCase(unittest.TestCase): |
| 633 | |
| 634 | # These tests are very minimal. :-( |
| 635 | |
| 636 | def test_compile_expr(self): |
| 637 | st = parser.expr('2 + 3') |
| 638 | code = parser.compilest(st) |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 639 | self.assertEqual(eval(code), 5) |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 640 | |
| 641 | def test_compile_suite(self): |
| 642 | st = parser.suite('x = 2; y = x + 3') |
| 643 | code = parser.compilest(st) |
| 644 | globs = {} |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 645 | exec(code, globs) |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 646 | self.assertEqual(globs['y'], 5) |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 647 | |
| 648 | def test_compile_error(self): |
| 649 | st = parser.suite('1 = 3 + 4') |
| 650 | self.assertRaises(SyntaxError, parser.compilest, st) |
| 651 | |
Guido van Rossum | b5a755e | 2007-07-18 18:15:48 +0000 | [diff] [blame] | 652 | def test_compile_badunicode(self): |
Guido van Rossum | 7eb6ca5 | 2007-07-18 21:00:22 +0000 | [diff] [blame] | 653 | st = parser.suite('a = "\\U12345678"') |
Guido van Rossum | b5a755e | 2007-07-18 18:15:48 +0000 | [diff] [blame] | 654 | self.assertRaises(SyntaxError, parser.compilest, st) |
Guido van Rossum | 7eb6ca5 | 2007-07-18 21:00:22 +0000 | [diff] [blame] | 655 | st = parser.suite('a = "\\u1"') |
Guido van Rossum | b5a755e | 2007-07-18 18:15:48 +0000 | [diff] [blame] | 656 | self.assertRaises(SyntaxError, parser.compilest, st) |
| 657 | |
Mark Dickinson | d35a32e | 2010-06-17 12:33:22 +0000 | [diff] [blame] | 658 | def test_issue_9011(self): |
| 659 | # Issue 9011: compilation of an unary minus expression changed |
| 660 | # the meaning of the ST, so that a second compilation produced |
| 661 | # incorrect results. |
| 662 | st = parser.expr('-3') |
| 663 | code1 = parser.compilest(st) |
| 664 | self.assertEqual(eval(code1), -3) |
| 665 | code2 = parser.compilest(st) |
| 666 | self.assertEqual(eval(code2), -3) |
| 667 | |
Serhiy Storchaka | 9305d83 | 2016-06-18 13:53:36 +0300 | [diff] [blame] | 668 | def test_compile_filename(self): |
| 669 | st = parser.expr('a + 5') |
| 670 | code = parser.compilest(st) |
| 671 | self.assertEqual(code.co_filename, '<syntax-tree>') |
| 672 | code = st.compile() |
| 673 | self.assertEqual(code.co_filename, '<syntax-tree>') |
Serhiy Storchaka | febc332 | 2016-08-06 23:29:29 +0300 | [diff] [blame] | 674 | for filename in 'file.py', b'file.py': |
Serhiy Storchaka | 9305d83 | 2016-06-18 13:53:36 +0300 | [diff] [blame] | 675 | code = parser.compilest(st, filename) |
| 676 | self.assertEqual(code.co_filename, 'file.py') |
| 677 | code = st.compile(filename) |
| 678 | self.assertEqual(code.co_filename, 'file.py') |
Serhiy Storchaka | febc332 | 2016-08-06 23:29:29 +0300 | [diff] [blame] | 679 | for filename in bytearray(b'file.py'), memoryview(b'file.py'): |
| 680 | with self.assertWarns(DeprecationWarning): |
| 681 | code = parser.compilest(st, filename) |
| 682 | self.assertEqual(code.co_filename, 'file.py') |
| 683 | with self.assertWarns(DeprecationWarning): |
| 684 | code = st.compile(filename) |
| 685 | self.assertEqual(code.co_filename, 'file.py') |
Serhiy Storchaka | 9305d83 | 2016-06-18 13:53:36 +0300 | [diff] [blame] | 686 | self.assertRaises(TypeError, parser.compilest, st, list(b'file.py')) |
| 687 | self.assertRaises(TypeError, st.compile, list(b'file.py')) |
| 688 | |
| 689 | |
Christian Heimes | 90c3d9b | 2008-02-23 13:18:03 +0000 | [diff] [blame] | 690 | class ParserStackLimitTestCase(unittest.TestCase): |
Mark Dickinson | d35a32e | 2010-06-17 12:33:22 +0000 | [diff] [blame] | 691 | """try to push the parser to/over its limits. |
Christian Heimes | 90c3d9b | 2008-02-23 13:18:03 +0000 | [diff] [blame] | 692 | see http://bugs.python.org/issue1881 for a discussion |
| 693 | """ |
| 694 | def _nested_expression(self, level): |
| 695 | return "["*level+"]"*level |
| 696 | |
| 697 | def test_deeply_nested_list(self): |
| 698 | # XXX used to be 99 levels in 2.x |
| 699 | e = self._nested_expression(93) |
| 700 | st = parser.expr(e) |
| 701 | st.compile() |
| 702 | |
| 703 | def test_trigger_memory_error(self): |
| 704 | e = self._nested_expression(100) |
Ezio Melotti | 3919184 | 2013-03-09 22:17:33 +0200 | [diff] [blame] | 705 | rc, out, err = assert_python_failure('-c', e) |
| 706 | # parsing the expression will result in an error message |
| 707 | # followed by a MemoryError (see #11963) |
Ezio Melotti | e7c3299 | 2013-03-10 03:25:45 +0200 | [diff] [blame] | 708 | self.assertIn(b's_push: parser stack overflow', err) |
| 709 | self.assertIn(b'MemoryError', err) |
Christian Heimes | 90c3d9b | 2008-02-23 13:18:03 +0000 | [diff] [blame] | 710 | |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 711 | class STObjectTestCase(unittest.TestCase): |
| 712 | """Test operations on ST objects themselves""" |
| 713 | |
| 714 | def test_comparisons(self): |
| 715 | # ST objects should support order and equality comparisons |
| 716 | st1 = parser.expr('2 + 3') |
| 717 | st2 = parser.suite('x = 2; y = x + 3') |
| 718 | st3 = parser.expr('list(x**3 for x in range(20))') |
| 719 | st1_copy = parser.expr('2 + 3') |
| 720 | st2_copy = parser.suite('x = 2; y = x + 3') |
| 721 | st3_copy = parser.expr('list(x**3 for x in range(20))') |
| 722 | |
| 723 | # exercise fast path for object identity |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 724 | self.assertEqual(st1 == st1, True) |
| 725 | self.assertEqual(st2 == st2, True) |
| 726 | self.assertEqual(st3 == st3, True) |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 727 | # slow path equality |
| 728 | self.assertEqual(st1, st1_copy) |
| 729 | self.assertEqual(st2, st2_copy) |
| 730 | self.assertEqual(st3, st3_copy) |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 731 | self.assertEqual(st1 == st2, False) |
| 732 | self.assertEqual(st1 == st3, False) |
| 733 | self.assertEqual(st2 == st3, False) |
| 734 | self.assertEqual(st1 != st1, False) |
| 735 | self.assertEqual(st2 != st2, False) |
| 736 | self.assertEqual(st3 != st3, False) |
| 737 | self.assertEqual(st1 != st1_copy, False) |
| 738 | self.assertEqual(st2 != st2_copy, False) |
| 739 | self.assertEqual(st3 != st3_copy, False) |
| 740 | self.assertEqual(st2 != st1, True) |
| 741 | self.assertEqual(st1 != st3, True) |
| 742 | self.assertEqual(st3 != st2, True) |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 743 | # we don't particularly care what the ordering is; just that |
| 744 | # it's usable and self-consistent |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 745 | self.assertEqual(st1 < st2, not (st2 <= st1)) |
| 746 | self.assertEqual(st1 < st3, not (st3 <= st1)) |
| 747 | self.assertEqual(st2 < st3, not (st3 <= st2)) |
| 748 | self.assertEqual(st1 < st2, st2 > st1) |
| 749 | self.assertEqual(st1 < st3, st3 > st1) |
| 750 | self.assertEqual(st2 < st3, st3 > st2) |
| 751 | self.assertEqual(st1 <= st2, st2 >= st1) |
| 752 | self.assertEqual(st3 <= st1, st1 >= st3) |
| 753 | self.assertEqual(st2 <= st3, st3 >= st2) |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 754 | # transitivity |
| 755 | bottom = min(st1, st2, st3) |
| 756 | top = max(st1, st2, st3) |
| 757 | mid = sorted([st1, st2, st3])[1] |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 758 | self.assertTrue(bottom < mid) |
| 759 | self.assertTrue(bottom < top) |
| 760 | self.assertTrue(mid < top) |
| 761 | self.assertTrue(bottom <= mid) |
| 762 | self.assertTrue(bottom <= top) |
| 763 | self.assertTrue(mid <= top) |
| 764 | self.assertTrue(bottom <= bottom) |
| 765 | self.assertTrue(mid <= mid) |
| 766 | self.assertTrue(top <= top) |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 767 | # interaction with other types |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 768 | self.assertEqual(st1 == 1588.602459, False) |
| 769 | self.assertEqual('spanish armada' != st2, True) |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 770 | self.assertRaises(TypeError, operator.ge, st3, None) |
| 771 | self.assertRaises(TypeError, operator.le, False, st1) |
| 772 | self.assertRaises(TypeError, operator.lt, st1, 1815) |
| 773 | self.assertRaises(TypeError, operator.gt, b'waterloo', st2) |
| 774 | |
Jesus Cea | e9c5318 | 2012-08-03 14:28:37 +0200 | [diff] [blame] | 775 | check_sizeof = support.check_sizeof |
| 776 | |
| 777 | @support.cpython_only |
| 778 | def test_sizeof(self): |
| 779 | def XXXROUNDUP(n): |
| 780 | if n <= 1: |
| 781 | return n |
| 782 | if n <= 128: |
| 783 | return (n + 3) & ~3 |
| 784 | return 1 << (n - 1).bit_length() |
| 785 | |
| 786 | basesize = support.calcobjsize('Pii') |
| 787 | nodesize = struct.calcsize('hP3iP0h') |
| 788 | def sizeofchildren(node): |
| 789 | if node is None: |
| 790 | return 0 |
| 791 | res = 0 |
| 792 | hasstr = len(node) > 1 and isinstance(node[-1], str) |
| 793 | if hasstr: |
| 794 | res += len(node[-1]) + 1 |
| 795 | children = node[1:-1] if hasstr else node[1:] |
| 796 | if children: |
| 797 | res += XXXROUNDUP(len(children)) * nodesize |
Jesus Cea | e9c5318 | 2012-08-03 14:28:37 +0200 | [diff] [blame] | 798 | for child in children: |
| 799 | res += sizeofchildren(child) |
| 800 | return res |
| 801 | |
| 802 | def check_st_sizeof(st): |
| 803 | self.check_sizeof(st, basesize + nodesize + |
| 804 | sizeofchildren(st.totuple())) |
| 805 | |
| 806 | check_st_sizeof(parser.expr('2 + 3')) |
| 807 | check_st_sizeof(parser.expr('2 + 3 + 4')) |
| 808 | check_st_sizeof(parser.suite('x = 2 + 3')) |
| 809 | check_st_sizeof(parser.suite('')) |
| 810 | check_st_sizeof(parser.suite('# -*- coding: utf-8 -*-')) |
| 811 | check_st_sizeof(parser.expr('[' + '2,' * 1000 + ']')) |
| 812 | |
Mark Dickinson | 211c625 | 2009-02-01 10:28:51 +0000 | [diff] [blame] | 813 | |
| 814 | # XXX tests for pickling and unpickling of ST objects should go here |
| 815 | |
Benjamin Peterson | f719957d | 2011-06-04 22:06:42 -0500 | [diff] [blame] | 816 | class OtherParserCase(unittest.TestCase): |
| 817 | |
| 818 | def test_two_args_to_expr(self): |
| 819 | # See bug #12264 |
| 820 | with self.assertRaises(TypeError): |
| 821 | parser.expr("a", "b") |
| 822 | |
Fred Drake | 2e2be37 | 2001-09-20 21:33:42 +0000 | [diff] [blame] | 823 | if __name__ == "__main__": |
Zachary Ware | 38c707e | 2015-04-13 15:00:43 -0500 | [diff] [blame] | 824 | unittest.main() |