| # Python test set -- built-in functions |
| |
| import platform |
| import unittest |
| import sys |
| import warnings |
| import collections |
| import io |
| import os |
| import ast |
| import types |
| import builtins |
| import random |
| import traceback |
| from test.support import fcmp, TESTFN, unlink, run_unittest, check_warnings |
| from operator import neg |
| try: |
| import pty, signal |
| except ImportError: |
| pty = signal = None |
| |
| |
| class Squares: |
| |
| def __init__(self, max): |
| self.max = max |
| self.sofar = [] |
| |
| def __len__(self): return len(self.sofar) |
| |
| def __getitem__(self, i): |
| if not 0 <= i < self.max: raise IndexError |
| n = len(self.sofar) |
| while n <= i: |
| self.sofar.append(n*n) |
| n += 1 |
| return self.sofar[i] |
| |
| class StrSquares: |
| |
| def __init__(self, max): |
| self.max = max |
| self.sofar = [] |
| |
| def __len__(self): |
| return len(self.sofar) |
| |
| def __getitem__(self, i): |
| if not 0 <= i < self.max: |
| raise IndexError |
| n = len(self.sofar) |
| while n <= i: |
| self.sofar.append(str(n*n)) |
| n += 1 |
| return self.sofar[i] |
| |
| class BitBucket: |
| def write(self, line): |
| pass |
| |
| test_conv_no_sign = [ |
| ('0', 0), |
| ('1', 1), |
| ('9', 9), |
| ('10', 10), |
| ('99', 99), |
| ('100', 100), |
| ('314', 314), |
| (' 314', 314), |
| ('314 ', 314), |
| (' \t\t 314 \t\t ', 314), |
| (repr(sys.maxsize), sys.maxsize), |
| (' 1x', ValueError), |
| (' 1 ', 1), |
| (' 1\02 ', ValueError), |
| ('', ValueError), |
| (' ', ValueError), |
| (' \t\t ', ValueError), |
| (str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314), |
| (chr(0x200), ValueError), |
| ] |
| |
| test_conv_sign = [ |
| ('0', 0), |
| ('1', 1), |
| ('9', 9), |
| ('10', 10), |
| ('99', 99), |
| ('100', 100), |
| ('314', 314), |
| (' 314', ValueError), |
| ('314 ', 314), |
| (' \t\t 314 \t\t ', ValueError), |
| (repr(sys.maxsize), sys.maxsize), |
| (' 1x', ValueError), |
| (' 1 ', ValueError), |
| (' 1\02 ', ValueError), |
| ('', ValueError), |
| (' ', ValueError), |
| (' \t\t ', ValueError), |
| (str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314), |
| (chr(0x200), ValueError), |
| ] |
| |
| class TestFailingBool: |
| def __bool__(self): |
| raise RuntimeError |
| |
| class TestFailingIter: |
| def __iter__(self): |
| raise RuntimeError |
| |
| class BuiltinTest(unittest.TestCase): |
| |
| def test_import(self): |
| __import__('sys') |
| __import__('time') |
| __import__('string') |
| __import__(name='sys') |
| __import__(name='time', level=0) |
| self.assertRaises(ImportError, __import__, 'spamspam') |
| self.assertRaises(TypeError, __import__, 1, 2, 3, 4) |
| self.assertRaises(ValueError, __import__, '') |
| self.assertRaises(TypeError, __import__, 'sys', name='sys') |
| |
| def test_abs(self): |
| # int |
| self.assertEqual(abs(0), 0) |
| self.assertEqual(abs(1234), 1234) |
| self.assertEqual(abs(-1234), 1234) |
| self.assertTrue(abs(-sys.maxsize-1) > 0) |
| # float |
| self.assertEqual(abs(0.0), 0.0) |
| self.assertEqual(abs(3.14), 3.14) |
| self.assertEqual(abs(-3.14), 3.14) |
| # str |
| self.assertRaises(TypeError, abs, 'a') |
| # bool |
| self.assertEqual(abs(True), 1) |
| self.assertEqual(abs(False), 0) |
| # other |
| self.assertRaises(TypeError, abs) |
| self.assertRaises(TypeError, abs, None) |
| class AbsClass(object): |
| def __abs__(self): |
| return -5 |
| self.assertEqual(abs(AbsClass()), -5) |
| |
| def test_all(self): |
| self.assertEqual(all([2, 4, 6]), True) |
| self.assertEqual(all([2, None, 6]), False) |
| self.assertRaises(RuntimeError, all, [2, TestFailingBool(), 6]) |
| self.assertRaises(RuntimeError, all, TestFailingIter()) |
| self.assertRaises(TypeError, all, 10) # Non-iterable |
| self.assertRaises(TypeError, all) # No args |
| self.assertRaises(TypeError, all, [2, 4, 6], []) # Too many args |
| self.assertEqual(all([]), True) # Empty iterator |
| S = [50, 60] |
| self.assertEqual(all(x > 42 for x in S), True) |
| S = [50, 40, 60] |
| self.assertEqual(all(x > 42 for x in S), False) |
| |
| def test_any(self): |
| self.assertEqual(any([None, None, None]), False) |
| self.assertEqual(any([None, 4, None]), True) |
| self.assertRaises(RuntimeError, any, [None, TestFailingBool(), 6]) |
| self.assertRaises(RuntimeError, all, TestFailingIter()) |
| self.assertRaises(TypeError, any, 10) # Non-iterable |
| self.assertRaises(TypeError, any) # No args |
| self.assertRaises(TypeError, any, [2, 4, 6], []) # Too many args |
| self.assertEqual(any([]), False) # Empty iterator |
| S = [40, 60, 30] |
| self.assertEqual(any(x > 42 for x in S), True) |
| S = [10, 20, 30] |
| self.assertEqual(any(x > 42 for x in S), False) |
| |
| def test_ascii(self): |
| self.assertEqual(ascii(''), '\'\'') |
| self.assertEqual(ascii(0), '0') |
| self.assertEqual(ascii(()), '()') |
| self.assertEqual(ascii([]), '[]') |
| self.assertEqual(ascii({}), '{}') |
| a = [] |
| a.append(a) |
| self.assertEqual(ascii(a), '[[...]]') |
| a = {} |
| a[0] = a |
| self.assertEqual(ascii(a), '{0: {...}}') |
| # Advanced checks for unicode strings |
| def _check_uni(s): |
| self.assertEqual(ascii(s), repr(s)) |
| _check_uni("'") |
| _check_uni('"') |
| _check_uni('"\'') |
| _check_uni('\0') |
| _check_uni('\r\n\t .') |
| # Unprintable non-ASCII characters |
| _check_uni('\x85') |
| _check_uni('\u1fff') |
| _check_uni('\U00012fff') |
| # Lone surrogates |
| _check_uni('\ud800') |
| _check_uni('\udfff') |
| # Issue #9804: surrogates should be joined even for printable |
| # wide characters (UCS-2 builds). |
| self.assertEqual(ascii('\U0001d121'), "'\\U0001d121'") |
| # All together |
| s = "'\0\"\n\r\t abcd\x85é\U00012fff\uD800\U0001D121xxx." |
| self.assertEqual(ascii(s), |
| r"""'\'\x00"\n\r\t abcd\x85\xe9\U00012fff\ud800\U0001d121xxx.'""") |
| |
| def test_neg(self): |
| x = -sys.maxsize-1 |
| self.assertTrue(isinstance(x, int)) |
| self.assertEqual(-x, sys.maxsize+1) |
| |
| def test_callable(self): |
| self.assertTrue(callable(len)) |
| self.assertFalse(callable("a")) |
| self.assertTrue(callable(callable)) |
| self.assertTrue(callable(lambda x, y: x + y)) |
| self.assertFalse(callable(__builtins__)) |
| def f(): pass |
| self.assertTrue(callable(f)) |
| |
| class C1: |
| def meth(self): pass |
| self.assertTrue(callable(C1)) |
| c = C1() |
| self.assertTrue(callable(c.meth)) |
| self.assertFalse(callable(c)) |
| |
| # __call__ is looked up on the class, not the instance |
| c.__call__ = None |
| self.assertFalse(callable(c)) |
| c.__call__ = lambda self: 0 |
| self.assertFalse(callable(c)) |
| del c.__call__ |
| self.assertFalse(callable(c)) |
| |
| class C2(object): |
| def __call__(self): pass |
| c2 = C2() |
| self.assertTrue(callable(c2)) |
| c2.__call__ = None |
| self.assertTrue(callable(c2)) |
| class C3(C2): pass |
| c3 = C3() |
| self.assertTrue(callable(c3)) |
| |
| def test_chr(self): |
| self.assertEqual(chr(32), ' ') |
| self.assertEqual(chr(65), 'A') |
| self.assertEqual(chr(97), 'a') |
| self.assertEqual(chr(0xff), '\xff') |
| self.assertRaises(ValueError, chr, 1<<24) |
| self.assertEqual(chr(sys.maxunicode), |
| str(('\\U%08x' % (sys.maxunicode)).encode("ascii"), |
| 'unicode-escape')) |
| self.assertRaises(TypeError, chr) |
| self.assertEqual(chr(0x0000FFFF), "\U0000FFFF") |
| self.assertEqual(chr(0x00010000), "\U00010000") |
| self.assertEqual(chr(0x00010001), "\U00010001") |
| self.assertEqual(chr(0x000FFFFE), "\U000FFFFE") |
| self.assertEqual(chr(0x000FFFFF), "\U000FFFFF") |
| self.assertEqual(chr(0x00100000), "\U00100000") |
| self.assertEqual(chr(0x00100001), "\U00100001") |
| self.assertEqual(chr(0x0010FFFE), "\U0010FFFE") |
| self.assertEqual(chr(0x0010FFFF), "\U0010FFFF") |
| self.assertRaises(ValueError, chr, -1) |
| self.assertRaises(ValueError, chr, 0x00110000) |
| self.assertRaises((OverflowError, ValueError), chr, 2**32) |
| |
| def test_cmp(self): |
| self.assertTrue(not hasattr(builtins, "cmp")) |
| |
| def test_compile(self): |
| compile('print(1)\n', '', 'exec') |
| bom = b'\xef\xbb\xbf' |
| compile(bom + b'print(1)\n', '', 'exec') |
| compile(source='pass', filename='?', mode='exec') |
| compile(dont_inherit=0, filename='tmp', source='0', mode='eval') |
| compile('pass', '?', dont_inherit=1, mode='exec') |
| compile(memoryview(b"text"), "name", "exec") |
| self.assertRaises(TypeError, compile) |
| self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'badmode') |
| self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'single', 0xff) |
| self.assertRaises(TypeError, compile, chr(0), 'f', 'exec') |
| self.assertRaises(TypeError, compile, 'pass', '?', 'exec', |
| mode='eval', source='0', filename='tmp') |
| compile('print("\xe5")\n', '', 'exec') |
| self.assertRaises(TypeError, compile, chr(0), 'f', 'exec') |
| self.assertRaises(ValueError, compile, str('a = 1'), 'f', 'bad') |
| |
| # test the optimize argument |
| |
| codestr = '''def f(): |
| """doc""" |
| try: |
| assert False |
| except AssertionError: |
| return (True, f.__doc__) |
| else: |
| return (False, f.__doc__) |
| ''' |
| def f(): """doc""" |
| values = [(-1, __debug__, f.__doc__), |
| (0, True, 'doc'), |
| (1, False, 'doc'), |
| (2, False, None)] |
| for optval, debugval, docstring in values: |
| # test both direct compilation and compilation via AST |
| codeobjs = [] |
| codeobjs.append(compile(codestr, "<test>", "exec", optimize=optval)) |
| tree = ast.parse(codestr) |
| codeobjs.append(compile(tree, "<test>", "exec", optimize=optval)) |
| for code in codeobjs: |
| ns = {} |
| exec(code, ns) |
| rv = ns['f']() |
| self.assertEqual(rv, (debugval, docstring)) |
| |
| def test_delattr(self): |
| sys.spam = 1 |
| delattr(sys, 'spam') |
| self.assertRaises(TypeError, delattr) |
| |
| def test_dir(self): |
| # dir(wrong number of arguments) |
| self.assertRaises(TypeError, dir, 42, 42) |
| |
| # dir() - local scope |
| local_var = 1 |
| self.assertIn('local_var', dir()) |
| |
| # dir(module) |
| self.assertIn('exit', dir(sys)) |
| |
| # dir(module_with_invalid__dict__) |
| class Foo(types.ModuleType): |
| __dict__ = 8 |
| f = Foo("foo") |
| self.assertRaises(TypeError, dir, f) |
| |
| # dir(type) |
| self.assertIn("strip", dir(str)) |
| self.assertNotIn("__mro__", dir(str)) |
| |
| # dir(obj) |
| class Foo(object): |
| def __init__(self): |
| self.x = 7 |
| self.y = 8 |
| self.z = 9 |
| f = Foo() |
| self.assertIn("y", dir(f)) |
| |
| # dir(obj_no__dict__) |
| class Foo(object): |
| __slots__ = [] |
| f = Foo() |
| self.assertIn("__repr__", dir(f)) |
| |
| # dir(obj_no__class__with__dict__) |
| # (an ugly trick to cause getattr(f, "__class__") to fail) |
| class Foo(object): |
| __slots__ = ["__class__", "__dict__"] |
| def __init__(self): |
| self.bar = "wow" |
| f = Foo() |
| self.assertNotIn("__repr__", dir(f)) |
| self.assertIn("bar", dir(f)) |
| |
| # dir(obj_using __dir__) |
| class Foo(object): |
| def __dir__(self): |
| return ["kan", "ga", "roo"] |
| f = Foo() |
| self.assertTrue(dir(f) == ["ga", "kan", "roo"]) |
| |
| # dir(obj__dir__not_list) |
| class Foo(object): |
| def __dir__(self): |
| return 7 |
| f = Foo() |
| self.assertRaises(TypeError, dir, f) |
| |
| # dir(traceback) |
| try: |
| raise IndexError |
| except: |
| self.assertEqual(len(dir(sys.exc_info()[2])), 4) |
| |
| |
| def test_divmod(self): |
| self.assertEqual(divmod(12, 7), (1, 5)) |
| self.assertEqual(divmod(-12, 7), (-2, 2)) |
| self.assertEqual(divmod(12, -7), (-2, -2)) |
| self.assertEqual(divmod(-12, -7), (1, -5)) |
| |
| self.assertEqual(divmod(-sys.maxsize-1, -1), (sys.maxsize+1, 0)) |
| |
| self.assertTrue(not fcmp(divmod(3.25, 1.0), (3.0, 0.25))) |
| self.assertTrue(not fcmp(divmod(-3.25, 1.0), (-4.0, 0.75))) |
| self.assertTrue(not fcmp(divmod(3.25, -1.0), (-4.0, -0.75))) |
| self.assertTrue(not fcmp(divmod(-3.25, -1.0), (3.0, -0.25))) |
| |
| self.assertRaises(TypeError, divmod) |
| |
| def test_eval(self): |
| self.assertEqual(eval('1+1'), 2) |
| self.assertEqual(eval(' 1+1\n'), 2) |
| globals = {'a': 1, 'b': 2} |
| locals = {'b': 200, 'c': 300} |
| self.assertEqual(eval('a', globals) , 1) |
| self.assertEqual(eval('a', globals, locals), 1) |
| self.assertEqual(eval('b', globals, locals), 200) |
| self.assertEqual(eval('c', globals, locals), 300) |
| globals = {'a': 1, 'b': 2} |
| locals = {'b': 200, 'c': 300} |
| bom = b'\xef\xbb\xbf' |
| self.assertEqual(eval(bom + b'a', globals, locals), 1) |
| self.assertEqual(eval('"\xe5"', globals), "\xe5") |
| self.assertRaises(TypeError, eval) |
| self.assertRaises(TypeError, eval, ()) |
| self.assertRaises(SyntaxError, eval, bom[:2] + b'a') |
| |
| def test_general_eval(self): |
| # Tests that general mappings can be used for the locals argument |
| |
| class M: |
| "Test mapping interface versus possible calls from eval()." |
| def __getitem__(self, key): |
| if key == 'a': |
| return 12 |
| raise KeyError |
| def keys(self): |
| return list('xyz') |
| |
| m = M() |
| g = globals() |
| self.assertEqual(eval('a', g, m), 12) |
| self.assertRaises(NameError, eval, 'b', g, m) |
| self.assertEqual(eval('dir()', g, m), list('xyz')) |
| self.assertEqual(eval('globals()', g, m), g) |
| self.assertEqual(eval('locals()', g, m), m) |
| self.assertRaises(TypeError, eval, 'a', m) |
| class A: |
| "Non-mapping" |
| pass |
| m = A() |
| self.assertRaises(TypeError, eval, 'a', g, m) |
| |
| # Verify that dict subclasses work as well |
| class D(dict): |
| def __getitem__(self, key): |
| if key == 'a': |
| return 12 |
| return dict.__getitem__(self, key) |
| def keys(self): |
| return list('xyz') |
| |
| d = D() |
| self.assertEqual(eval('a', g, d), 12) |
| self.assertRaises(NameError, eval, 'b', g, d) |
| self.assertEqual(eval('dir()', g, d), list('xyz')) |
| self.assertEqual(eval('globals()', g, d), g) |
| self.assertEqual(eval('locals()', g, d), d) |
| |
| # Verify locals stores (used by list comps) |
| eval('[locals() for i in (2,3)]', g, d) |
| eval('[locals() for i in (2,3)]', g, collections.UserDict()) |
| |
| class SpreadSheet: |
| "Sample application showing nested, calculated lookups." |
| _cells = {} |
| def __setitem__(self, key, formula): |
| self._cells[key] = formula |
| def __getitem__(self, key): |
| return eval(self._cells[key], globals(), self) |
| |
| ss = SpreadSheet() |
| ss['a1'] = '5' |
| ss['a2'] = 'a1*6' |
| ss['a3'] = 'a2*7' |
| self.assertEqual(ss['a3'], 210) |
| |
| # Verify that dir() catches a non-list returned by eval |
| # SF bug #1004669 |
| class C: |
| def __getitem__(self, item): |
| raise KeyError(item) |
| def keys(self): |
| return 1 # used to be 'a' but that's no longer an error |
| self.assertRaises(TypeError, eval, 'dir()', globals(), C()) |
| |
| def test_exec(self): |
| g = {} |
| exec('z = 1', g) |
| if '__builtins__' in g: |
| del g['__builtins__'] |
| self.assertEqual(g, {'z': 1}) |
| |
| exec('z = 1+1', g) |
| if '__builtins__' in g: |
| del g['__builtins__'] |
| self.assertEqual(g, {'z': 2}) |
| g = {} |
| l = {} |
| |
| with check_warnings(): |
| warnings.filterwarnings("ignore", "global statement", |
| module="<string>") |
| exec('global a; a = 1; b = 2', g, l) |
| if '__builtins__' in g: |
| del g['__builtins__'] |
| if '__builtins__' in l: |
| del l['__builtins__'] |
| self.assertEqual((g, l), ({'a': 1}, {'b': 2})) |
| |
| def test_exec_redirected(self): |
| savestdout = sys.stdout |
| sys.stdout = None # Whatever that cannot flush() |
| try: |
| # Used to raise SystemError('error return without exception set') |
| exec('a') |
| except NameError: |
| pass |
| finally: |
| sys.stdout = savestdout |
| |
| def test_filter(self): |
| self.assertEqual(list(filter(lambda c: 'a' <= c <= 'z', 'Hello World')), list('elloorld')) |
| self.assertEqual(list(filter(None, [1, 'hello', [], [3], '', None, 9, 0])), [1, 'hello', [3], 9]) |
| self.assertEqual(list(filter(lambda x: x > 0, [1, -3, 9, 0, 2])), [1, 9, 2]) |
| self.assertEqual(list(filter(None, Squares(10))), [1, 4, 9, 16, 25, 36, 49, 64, 81]) |
| self.assertEqual(list(filter(lambda x: x%2, Squares(10))), [1, 9, 25, 49, 81]) |
| def identity(item): |
| return 1 |
| filter(identity, Squares(5)) |
| self.assertRaises(TypeError, filter) |
| class BadSeq(object): |
| def __getitem__(self, index): |
| if index<4: |
| return 42 |
| raise ValueError |
| self.assertRaises(ValueError, list, filter(lambda x: x, BadSeq())) |
| def badfunc(): |
| pass |
| self.assertRaises(TypeError, list, filter(badfunc, range(5))) |
| |
| # test bltinmodule.c::filtertuple() |
| self.assertEqual(list(filter(None, (1, 2))), [1, 2]) |
| self.assertEqual(list(filter(lambda x: x>=3, (1, 2, 3, 4))), [3, 4]) |
| self.assertRaises(TypeError, list, filter(42, (1, 2))) |
| |
| def test_getattr(self): |
| self.assertTrue(getattr(sys, 'stdout') is sys.stdout) |
| self.assertRaises(TypeError, getattr, sys, 1) |
| self.assertRaises(TypeError, getattr, sys, 1, "foo") |
| self.assertRaises(TypeError, getattr) |
| self.assertRaises(AttributeError, getattr, sys, chr(sys.maxunicode)) |
| # unicode surrogates are not encodable to the default encoding (utf8) |
| self.assertRaises(AttributeError, getattr, 1, "\uDAD1\uD51E") |
| |
| def test_hasattr(self): |
| self.assertTrue(hasattr(sys, 'stdout')) |
| self.assertRaises(TypeError, hasattr, sys, 1) |
| self.assertRaises(TypeError, hasattr) |
| self.assertEqual(False, hasattr(sys, chr(sys.maxunicode))) |
| |
| # Check that hasattr propagates all exceptions outside of |
| # AttributeError. |
| class A: |
| def __getattr__(self, what): |
| raise SystemExit |
| self.assertRaises(SystemExit, hasattr, A(), "b") |
| class B: |
| def __getattr__(self, what): |
| raise ValueError |
| self.assertRaises(ValueError, hasattr, B(), "b") |
| |
| def test_hash(self): |
| hash(None) |
| self.assertEqual(hash(1), hash(1)) |
| self.assertEqual(hash(1), hash(1.0)) |
| hash('spam') |
| self.assertEqual(hash('spam'), hash(b'spam')) |
| hash((0,1,2,3)) |
| def f(): pass |
| self.assertRaises(TypeError, hash, []) |
| self.assertRaises(TypeError, hash, {}) |
| # Bug 1536021: Allow hash to return long objects |
| class X: |
| def __hash__(self): |
| return 2**100 |
| self.assertEqual(type(hash(X())), int) |
| class Z(int): |
| def __hash__(self): |
| return self |
| self.assertEqual(hash(Z(42)), hash(42)) |
| |
| def test_hex(self): |
| self.assertEqual(hex(16), '0x10') |
| self.assertEqual(hex(-16), '-0x10') |
| self.assertRaises(TypeError, hex, {}) |
| |
| def test_id(self): |
| id(None) |
| id(1) |
| id(1.0) |
| id('spam') |
| id((0,1,2,3)) |
| id([0,1,2,3]) |
| id({'spam': 1, 'eggs': 2, 'ham': 3}) |
| |
| # Test input() later, alphabetized as if it were raw_input |
| |
| def test_iter(self): |
| self.assertRaises(TypeError, iter) |
| self.assertRaises(TypeError, iter, 42, 42) |
| lists = [("1", "2"), ["1", "2"], "12"] |
| for l in lists: |
| i = iter(l) |
| self.assertEqual(next(i), '1') |
| self.assertEqual(next(i), '2') |
| self.assertRaises(StopIteration, next, i) |
| |
| def test_isinstance(self): |
| class C: |
| pass |
| class D(C): |
| pass |
| class E: |
| pass |
| c = C() |
| d = D() |
| e = E() |
| self.assertTrue(isinstance(c, C)) |
| self.assertTrue(isinstance(d, C)) |
| self.assertTrue(not isinstance(e, C)) |
| self.assertTrue(not isinstance(c, D)) |
| self.assertTrue(not isinstance('foo', E)) |
| self.assertRaises(TypeError, isinstance, E, 'foo') |
| self.assertRaises(TypeError, isinstance) |
| |
| def test_issubclass(self): |
| class C: |
| pass |
| class D(C): |
| pass |
| class E: |
| pass |
| c = C() |
| d = D() |
| e = E() |
| self.assertTrue(issubclass(D, C)) |
| self.assertTrue(issubclass(C, C)) |
| self.assertTrue(not issubclass(C, D)) |
| self.assertRaises(TypeError, issubclass, 'foo', E) |
| self.assertRaises(TypeError, issubclass, E, 'foo') |
| self.assertRaises(TypeError, issubclass) |
| |
| def test_len(self): |
| self.assertEqual(len('123'), 3) |
| self.assertEqual(len(()), 0) |
| self.assertEqual(len((1, 2, 3, 4)), 4) |
| self.assertEqual(len([1, 2, 3, 4]), 4) |
| self.assertEqual(len({}), 0) |
| self.assertEqual(len({'a':1, 'b': 2}), 2) |
| class BadSeq: |
| def __len__(self): |
| raise ValueError |
| self.assertRaises(ValueError, len, BadSeq()) |
| class InvalidLen: |
| def __len__(self): |
| return None |
| self.assertRaises(TypeError, len, InvalidLen()) |
| class FloatLen: |
| def __len__(self): |
| return 4.5 |
| self.assertRaises(TypeError, len, FloatLen()) |
| class HugeLen: |
| def __len__(self): |
| return sys.maxsize + 1 |
| self.assertRaises(OverflowError, len, HugeLen()) |
| class NoLenMethod(object): pass |
| self.assertRaises(TypeError, len, NoLenMethod()) |
| |
| def test_map(self): |
| self.assertEqual( |
| list(map(lambda x: x*x, range(1,4))), |
| [1, 4, 9] |
| ) |
| try: |
| from math import sqrt |
| except ImportError: |
| def sqrt(x): |
| return pow(x, 0.5) |
| self.assertEqual( |
| list(map(lambda x: list(map(sqrt, x)), [[16, 4], [81, 9]])), |
| [[4.0, 2.0], [9.0, 3.0]] |
| ) |
| self.assertEqual( |
| list(map(lambda x, y: x+y, [1,3,2], [9,1,4])), |
| [10, 4, 6] |
| ) |
| |
| def plus(*v): |
| accu = 0 |
| for i in v: accu = accu + i |
| return accu |
| self.assertEqual( |
| list(map(plus, [1, 3, 7])), |
| [1, 3, 7] |
| ) |
| self.assertEqual( |
| list(map(plus, [1, 3, 7], [4, 9, 2])), |
| [1+4, 3+9, 7+2] |
| ) |
| self.assertEqual( |
| list(map(plus, [1, 3, 7], [4, 9, 2], [1, 1, 0])), |
| [1+4+1, 3+9+1, 7+2+0] |
| ) |
| self.assertEqual( |
| list(map(int, Squares(10))), |
| [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] |
| ) |
| def Max(a, b): |
| if a is None: |
| return b |
| if b is None: |
| return a |
| return max(a, b) |
| self.assertEqual( |
| list(map(Max, Squares(3), Squares(2))), |
| [0, 1] |
| ) |
| self.assertRaises(TypeError, map) |
| self.assertRaises(TypeError, map, lambda x: x, 42) |
| class BadSeq: |
| def __iter__(self): |
| raise ValueError |
| yield None |
| self.assertRaises(ValueError, list, map(lambda x: x, BadSeq())) |
| def badfunc(x): |
| raise RuntimeError |
| self.assertRaises(RuntimeError, list, map(badfunc, range(5))) |
| |
| def test_max(self): |
| self.assertEqual(max('123123'), '3') |
| self.assertEqual(max(1, 2, 3), 3) |
| self.assertEqual(max((1, 2, 3, 1, 2, 3)), 3) |
| self.assertEqual(max([1, 2, 3, 1, 2, 3]), 3) |
| |
| self.assertEqual(max(1, 2, 3.0), 3.0) |
| self.assertEqual(max(1, 2.0, 3), 3) |
| self.assertEqual(max(1.0, 2, 3), 3) |
| |
| for stmt in ( |
| "max(key=int)", # no args |
| "max(1, key=int)", # single arg not iterable |
| "max(1, 2, keystone=int)", # wrong keyword |
| "max(1, 2, key=int, abc=int)", # two many keywords |
| "max(1, 2, key=1)", # keyfunc is not callable |
| ): |
| try: |
| exec(stmt, globals()) |
| except TypeError: |
| pass |
| else: |
| self.fail(stmt) |
| |
| self.assertEqual(max((1,), key=neg), 1) # one elem iterable |
| self.assertEqual(max((1,2), key=neg), 1) # two elem iterable |
| self.assertEqual(max(1, 2, key=neg), 1) # two elems |
| |
| data = [random.randrange(200) for i in range(100)] |
| keys = dict((elem, random.randrange(50)) for elem in data) |
| f = keys.__getitem__ |
| self.assertEqual(max(data, key=f), |
| sorted(reversed(data), key=f)[-1]) |
| |
| def test_min(self): |
| self.assertEqual(min('123123'), '1') |
| self.assertEqual(min(1, 2, 3), 1) |
| self.assertEqual(min((1, 2, 3, 1, 2, 3)), 1) |
| self.assertEqual(min([1, 2, 3, 1, 2, 3]), 1) |
| |
| self.assertEqual(min(1, 2, 3.0), 1) |
| self.assertEqual(min(1, 2.0, 3), 1) |
| self.assertEqual(min(1.0, 2, 3), 1.0) |
| |
| self.assertRaises(TypeError, min) |
| self.assertRaises(TypeError, min, 42) |
| self.assertRaises(ValueError, min, ()) |
| class BadSeq: |
| def __getitem__(self, index): |
| raise ValueError |
| self.assertRaises(ValueError, min, BadSeq()) |
| |
| for stmt in ( |
| "min(key=int)", # no args |
| "min(1, key=int)", # single arg not iterable |
| "min(1, 2, keystone=int)", # wrong keyword |
| "min(1, 2, key=int, abc=int)", # two many keywords |
| "min(1, 2, key=1)", # keyfunc is not callable |
| ): |
| try: |
| exec(stmt, globals()) |
| except TypeError: |
| pass |
| else: |
| self.fail(stmt) |
| |
| self.assertEqual(min((1,), key=neg), 1) # one elem iterable |
| self.assertEqual(min((1,2), key=neg), 2) # two elem iterable |
| self.assertEqual(min(1, 2, key=neg), 2) # two elems |
| |
| data = [random.randrange(200) for i in range(100)] |
| keys = dict((elem, random.randrange(50)) for elem in data) |
| f = keys.__getitem__ |
| self.assertEqual(min(data, key=f), |
| sorted(data, key=f)[0]) |
| |
| def test_next(self): |
| it = iter(range(2)) |
| self.assertEqual(next(it), 0) |
| self.assertEqual(next(it), 1) |
| self.assertRaises(StopIteration, next, it) |
| self.assertRaises(StopIteration, next, it) |
| self.assertEqual(next(it, 42), 42) |
| |
| class Iter(object): |
| def __iter__(self): |
| return self |
| def __next__(self): |
| raise StopIteration |
| |
| it = iter(Iter()) |
| self.assertEqual(next(it, 42), 42) |
| self.assertRaises(StopIteration, next, it) |
| |
| def gen(): |
| yield 1 |
| return |
| |
| it = gen() |
| self.assertEqual(next(it), 1) |
| self.assertRaises(StopIteration, next, it) |
| self.assertEqual(next(it, 42), 42) |
| |
| def test_oct(self): |
| self.assertEqual(oct(100), '0o144') |
| self.assertEqual(oct(-100), '-0o144') |
| self.assertRaises(TypeError, oct, ()) |
| |
| def write_testfile(self): |
| # NB the first 4 lines are also used to test input, below |
| fp = open(TESTFN, 'w') |
| try: |
| fp.write('1+1\n') |
| fp.write('The quick brown fox jumps over the lazy dog') |
| fp.write('.\n') |
| fp.write('Dear John\n') |
| fp.write('XXX'*100) |
| fp.write('YYY'*100) |
| finally: |
| fp.close() |
| |
| def test_open(self): |
| self.write_testfile() |
| fp = open(TESTFN, 'r') |
| try: |
| self.assertEqual(fp.readline(4), '1+1\n') |
| self.assertEqual(fp.readline(), 'The quick brown fox jumps over the lazy dog.\n') |
| self.assertEqual(fp.readline(4), 'Dear') |
| self.assertEqual(fp.readline(100), ' John\n') |
| self.assertEqual(fp.read(300), 'XXX'*100) |
| self.assertEqual(fp.read(1000), 'YYY'*100) |
| finally: |
| fp.close() |
| unlink(TESTFN) |
| |
| def test_ord(self): |
| self.assertEqual(ord(' '), 32) |
| self.assertEqual(ord('A'), 65) |
| self.assertEqual(ord('a'), 97) |
| self.assertEqual(ord('\x80'), 128) |
| self.assertEqual(ord('\xff'), 255) |
| |
| self.assertEqual(ord(b' '), 32) |
| self.assertEqual(ord(b'A'), 65) |
| self.assertEqual(ord(b'a'), 97) |
| self.assertEqual(ord(b'\x80'), 128) |
| self.assertEqual(ord(b'\xff'), 255) |
| |
| self.assertEqual(ord(chr(sys.maxunicode)), sys.maxunicode) |
| self.assertRaises(TypeError, ord, 42) |
| |
| self.assertEqual(ord(chr(0x10FFFF)), 0x10FFFF) |
| self.assertEqual(ord("\U0000FFFF"), 0x0000FFFF) |
| self.assertEqual(ord("\U00010000"), 0x00010000) |
| self.assertEqual(ord("\U00010001"), 0x00010001) |
| self.assertEqual(ord("\U000FFFFE"), 0x000FFFFE) |
| self.assertEqual(ord("\U000FFFFF"), 0x000FFFFF) |
| self.assertEqual(ord("\U00100000"), 0x00100000) |
| self.assertEqual(ord("\U00100001"), 0x00100001) |
| self.assertEqual(ord("\U0010FFFE"), 0x0010FFFE) |
| self.assertEqual(ord("\U0010FFFF"), 0x0010FFFF) |
| |
| def test_pow(self): |
| self.assertEqual(pow(0,0), 1) |
| self.assertEqual(pow(0,1), 0) |
| self.assertEqual(pow(1,0), 1) |
| self.assertEqual(pow(1,1), 1) |
| |
| self.assertEqual(pow(2,0), 1) |
| self.assertEqual(pow(2,10), 1024) |
| self.assertEqual(pow(2,20), 1024*1024) |
| self.assertEqual(pow(2,30), 1024*1024*1024) |
| |
| self.assertEqual(pow(-2,0), 1) |
| self.assertEqual(pow(-2,1), -2) |
| self.assertEqual(pow(-2,2), 4) |
| self.assertEqual(pow(-2,3), -8) |
| |
| self.assertAlmostEqual(pow(0.,0), 1.) |
| self.assertAlmostEqual(pow(0.,1), 0.) |
| self.assertAlmostEqual(pow(1.,0), 1.) |
| self.assertAlmostEqual(pow(1.,1), 1.) |
| |
| self.assertAlmostEqual(pow(2.,0), 1.) |
| self.assertAlmostEqual(pow(2.,10), 1024.) |
| self.assertAlmostEqual(pow(2.,20), 1024.*1024.) |
| self.assertAlmostEqual(pow(2.,30), 1024.*1024.*1024.) |
| |
| self.assertAlmostEqual(pow(-2.,0), 1.) |
| self.assertAlmostEqual(pow(-2.,1), -2.) |
| self.assertAlmostEqual(pow(-2.,2), 4.) |
| self.assertAlmostEqual(pow(-2.,3), -8.) |
| |
| for x in 2, 2.0: |
| for y in 10, 10.0: |
| for z in 1000, 1000.0: |
| if isinstance(x, float) or \ |
| isinstance(y, float) or \ |
| isinstance(z, float): |
| self.assertRaises(TypeError, pow, x, y, z) |
| else: |
| self.assertAlmostEqual(pow(x, y, z), 24.0) |
| |
| self.assertAlmostEqual(pow(-1, 0.5), 1j) |
| self.assertAlmostEqual(pow(-1, 1/3), 0.5 + 0.8660254037844386j) |
| |
| self.assertRaises(TypeError, pow, -1, -2, 3) |
| self.assertRaises(ValueError, pow, 1, 2, 0) |
| |
| self.assertRaises(TypeError, pow) |
| |
| def test_input(self): |
| self.write_testfile() |
| fp = open(TESTFN, 'r') |
| savestdin = sys.stdin |
| savestdout = sys.stdout # Eats the echo |
| try: |
| sys.stdin = fp |
| sys.stdout = BitBucket() |
| self.assertEqual(input(), "1+1") |
| self.assertEqual(input(), 'The quick brown fox jumps over the lazy dog.') |
| self.assertEqual(input('testing\n'), 'Dear John') |
| |
| # SF 1535165: don't segfault on closed stdin |
| # sys.stdout must be a regular file for triggering |
| sys.stdout = savestdout |
| sys.stdin.close() |
| self.assertRaises(ValueError, input) |
| |
| sys.stdout = BitBucket() |
| sys.stdin = io.StringIO("NULL\0") |
| self.assertRaises(TypeError, input, 42, 42) |
| sys.stdin = io.StringIO(" 'whitespace'") |
| self.assertEqual(input(), " 'whitespace'") |
| sys.stdin = io.StringIO() |
| self.assertRaises(EOFError, input) |
| |
| del sys.stdout |
| self.assertRaises(RuntimeError, input, 'prompt') |
| del sys.stdin |
| self.assertRaises(RuntimeError, input, 'prompt') |
| finally: |
| sys.stdin = savestdin |
| sys.stdout = savestdout |
| fp.close() |
| unlink(TESTFN) |
| |
| @unittest.skipUnless(pty, "the pty and signal modules must be available") |
| def check_input_tty(self, prompt, terminal_input, stdio_encoding=None): |
| if not sys.stdin.isatty() or not sys.stdout.isatty(): |
| self.skipTest("stdin and stdout must be ttys") |
| r, w = os.pipe() |
| try: |
| pid, fd = pty.fork() |
| except (OSError, AttributeError) as e: |
| os.close(r) |
| os.close(w) |
| self.skipTest("pty.fork() raised {}".format(e)) |
| if pid == 0: |
| # Child |
| try: |
| # Make sure we don't get stuck if there's a problem |
| signal.alarm(2) |
| os.close(r) |
| # Check the error handlers are accounted for |
| if stdio_encoding: |
| sys.stdin = io.TextIOWrapper(sys.stdin.detach(), |
| encoding=stdio_encoding, |
| errors='surrogateescape') |
| sys.stdout = io.TextIOWrapper(sys.stdout.detach(), |
| encoding=stdio_encoding, |
| errors='replace') |
| with open(w, "w") as wpipe: |
| print("tty =", sys.stdin.isatty() and sys.stdout.isatty(), file=wpipe) |
| print(ascii(input(prompt)), file=wpipe) |
| except: |
| traceback.print_exc() |
| finally: |
| # We don't want to return to unittest... |
| os._exit(0) |
| # Parent |
| os.close(w) |
| os.write(fd, terminal_input + b"\r\n") |
| # Get results from the pipe |
| with open(r, "r") as rpipe: |
| lines = [] |
| while True: |
| line = rpipe.readline().strip() |
| if line == "": |
| # The other end was closed => the child exited |
| break |
| lines.append(line) |
| # Check the result was got and corresponds to the user's terminal input |
| if len(lines) != 2: |
| # Something went wrong, try to get at stderr |
| with open(fd, "r", encoding="ascii", errors="ignore") as child_output: |
| self.fail("got %d lines in pipe but expected 2, child output was:\n%s" |
| % (len(lines), child_output.read())) |
| os.close(fd) |
| # Check we did exercise the GNU readline path |
| self.assertIn(lines[0], {'tty = True', 'tty = False'}) |
| if lines[0] != 'tty = True': |
| self.skipTest("standard IO in should have been a tty") |
| input_result = eval(lines[1]) # ascii() -> eval() roundtrip |
| if stdio_encoding: |
| expected = terminal_input.decode(stdio_encoding, 'surrogateescape') |
| else: |
| expected = terminal_input.decode(sys.stdin.encoding) # what else? |
| self.assertEqual(input_result, expected) |
| |
| def test_input_tty(self): |
| # Test input() functionality when wired to a tty (the code path |
| # is different and invokes GNU readline if available). |
| self.check_input_tty("prompt", b"quux") |
| |
| def test_input_tty_non_ascii(self): |
| # Check stdin/stdout encoding is used when invoking GNU readline |
| self.check_input_tty("prompté", b"quux\xe9", "utf-8") |
| |
| def test_input_tty_non_ascii_unicode_errors(self): |
| # Check stdin/stdout error handler is used when invoking GNU readline |
| self.check_input_tty("prompté", b"quux\xe9", "ascii") |
| |
| def test_repr(self): |
| self.assertEqual(repr(''), '\'\'') |
| self.assertEqual(repr(0), '0') |
| self.assertEqual(repr(()), '()') |
| self.assertEqual(repr([]), '[]') |
| self.assertEqual(repr({}), '{}') |
| a = [] |
| a.append(a) |
| self.assertEqual(repr(a), '[[...]]') |
| a = {} |
| a[0] = a |
| self.assertEqual(repr(a), '{0: {...}}') |
| |
| def test_round(self): |
| self.assertEqual(round(0.0), 0.0) |
| self.assertEqual(type(round(0.0)), int) |
| self.assertEqual(round(1.0), 1.0) |
| self.assertEqual(round(10.0), 10.0) |
| self.assertEqual(round(1000000000.0), 1000000000.0) |
| self.assertEqual(round(1e20), 1e20) |
| |
| self.assertEqual(round(-1.0), -1.0) |
| self.assertEqual(round(-10.0), -10.0) |
| self.assertEqual(round(-1000000000.0), -1000000000.0) |
| self.assertEqual(round(-1e20), -1e20) |
| |
| self.assertEqual(round(0.1), 0.0) |
| self.assertEqual(round(1.1), 1.0) |
| self.assertEqual(round(10.1), 10.0) |
| self.assertEqual(round(1000000000.1), 1000000000.0) |
| |
| self.assertEqual(round(-1.1), -1.0) |
| self.assertEqual(round(-10.1), -10.0) |
| self.assertEqual(round(-1000000000.1), -1000000000.0) |
| |
| self.assertEqual(round(0.9), 1.0) |
| self.assertEqual(round(9.9), 10.0) |
| self.assertEqual(round(999999999.9), 1000000000.0) |
| |
| self.assertEqual(round(-0.9), -1.0) |
| self.assertEqual(round(-9.9), -10.0) |
| self.assertEqual(round(-999999999.9), -1000000000.0) |
| |
| self.assertEqual(round(-8.0, -1), -10.0) |
| self.assertEqual(type(round(-8.0, -1)), float) |
| |
| self.assertEqual(type(round(-8.0, 0)), float) |
| self.assertEqual(type(round(-8.0, 1)), float) |
| |
| # Check even / odd rounding behaviour |
| self.assertEqual(round(5.5), 6) |
| self.assertEqual(round(6.5), 6) |
| self.assertEqual(round(-5.5), -6) |
| self.assertEqual(round(-6.5), -6) |
| |
| # Check behavior on ints |
| self.assertEqual(round(0), 0) |
| self.assertEqual(round(8), 8) |
| self.assertEqual(round(-8), -8) |
| self.assertEqual(type(round(0)), int) |
| self.assertEqual(type(round(-8, -1)), int) |
| self.assertEqual(type(round(-8, 0)), int) |
| self.assertEqual(type(round(-8, 1)), int) |
| |
| # test new kwargs |
| self.assertEqual(round(number=-8.0, ndigits=-1), -10.0) |
| |
| self.assertRaises(TypeError, round) |
| |
| # test generic rounding delegation for reals |
| class TestRound: |
| def __round__(self): |
| return 23 |
| |
| class TestNoRound: |
| pass |
| |
| self.assertEqual(round(TestRound()), 23) |
| |
| self.assertRaises(TypeError, round, 1, 2, 3) |
| self.assertRaises(TypeError, round, TestNoRound()) |
| |
| t = TestNoRound() |
| t.__round__ = lambda *args: args |
| self.assertRaises(TypeError, round, t) |
| self.assertRaises(TypeError, round, t, 0) |
| |
| # Some versions of glibc for alpha have a bug that affects |
| # float -> integer rounding (floor, ceil, rint, round) for |
| # values in the range [2**52, 2**53). See: |
| # |
| # http://sources.redhat.com/bugzilla/show_bug.cgi?id=5350 |
| # |
| # We skip this test on Linux/alpha if it would fail. |
| linux_alpha = (platform.system().startswith('Linux') and |
| platform.machine().startswith('alpha')) |
| system_round_bug = round(5e15+1) != 5e15+1 |
| @unittest.skipIf(linux_alpha and system_round_bug, |
| "test will fail; failure is probably due to a " |
| "buggy system round function") |
| def test_round_large(self): |
| # Issue #1869: integral floats should remain unchanged |
| self.assertEqual(round(5e15-1), 5e15-1) |
| self.assertEqual(round(5e15), 5e15) |
| self.assertEqual(round(5e15+1), 5e15+1) |
| self.assertEqual(round(5e15+2), 5e15+2) |
| self.assertEqual(round(5e15+3), 5e15+3) |
| |
| def test_setattr(self): |
| setattr(sys, 'spam', 1) |
| self.assertEqual(sys.spam, 1) |
| self.assertRaises(TypeError, setattr, sys, 1, 'spam') |
| self.assertRaises(TypeError, setattr) |
| |
| |
| def test_sum(self): |
| self.assertEqual(sum([]), 0) |
| self.assertEqual(sum(list(range(2,8))), 27) |
| self.assertEqual(sum(iter(list(range(2,8)))), 27) |
| self.assertEqual(sum(Squares(10)), 285) |
| self.assertEqual(sum(iter(Squares(10))), 285) |
| self.assertEqual(sum([[1], [2], [3]], []), [1, 2, 3]) |
| |
| self.assertRaises(TypeError, sum) |
| self.assertRaises(TypeError, sum, 42) |
| self.assertRaises(TypeError, sum, ['a', 'b', 'c']) |
| self.assertRaises(TypeError, sum, ['a', 'b', 'c'], '') |
| self.assertRaises(TypeError, sum, [[1], [2], [3]]) |
| self.assertRaises(TypeError, sum, [{2:3}]) |
| self.assertRaises(TypeError, sum, [{2:3}]*2, {2:3}) |
| |
| class BadSeq: |
| def __getitem__(self, index): |
| raise ValueError |
| self.assertRaises(ValueError, sum, BadSeq()) |
| |
| empty = [] |
| sum(([x] for x in range(10)), empty) |
| self.assertEqual(empty, []) |
| |
| def test_type(self): |
| self.assertEqual(type(''), type('123')) |
| self.assertNotEqual(type(''), type(())) |
| |
| # We don't want self in vars(), so these are static methods |
| |
| @staticmethod |
| def get_vars_f0(): |
| return vars() |
| |
| @staticmethod |
| def get_vars_f2(): |
| BuiltinTest.get_vars_f0() |
| a = 1 |
| b = 2 |
| return vars() |
| |
| class C_get_vars(object): |
| def getDict(self): |
| return {'a':2} |
| __dict__ = property(fget=getDict) |
| |
| def test_vars(self): |
| self.assertEqual(set(vars()), set(dir())) |
| self.assertEqual(set(vars(sys)), set(dir(sys))) |
| self.assertEqual(self.get_vars_f0(), {}) |
| self.assertEqual(self.get_vars_f2(), {'a': 1, 'b': 2}) |
| self.assertRaises(TypeError, vars, 42, 42) |
| self.assertRaises(TypeError, vars, 42) |
| self.assertEqual(vars(self.C_get_vars()), {'a':2}) |
| |
| def test_zip(self): |
| a = (1, 2, 3) |
| b = (4, 5, 6) |
| t = [(1, 4), (2, 5), (3, 6)] |
| self.assertEqual(list(zip(a, b)), t) |
| b = [4, 5, 6] |
| self.assertEqual(list(zip(a, b)), t) |
| b = (4, 5, 6, 7) |
| self.assertEqual(list(zip(a, b)), t) |
| class I: |
| def __getitem__(self, i): |
| if i < 0 or i > 2: raise IndexError |
| return i + 4 |
| self.assertEqual(list(zip(a, I())), t) |
| self.assertEqual(list(zip()), []) |
| self.assertEqual(list(zip(*[])), []) |
| self.assertRaises(TypeError, zip, None) |
| class G: |
| pass |
| self.assertRaises(TypeError, zip, a, G()) |
| self.assertRaises(RuntimeError, zip, a, TestFailingIter()) |
| |
| # Make sure zip doesn't try to allocate a billion elements for the |
| # result list when one of its arguments doesn't say how long it is. |
| # A MemoryError is the most likely failure mode. |
| class SequenceWithoutALength: |
| def __getitem__(self, i): |
| if i == 5: |
| raise IndexError |
| else: |
| return i |
| self.assertEqual( |
| list(zip(SequenceWithoutALength(), range(2**30))), |
| list(enumerate(range(5))) |
| ) |
| |
| class BadSeq: |
| def __getitem__(self, i): |
| if i == 5: |
| raise ValueError |
| else: |
| return i |
| self.assertRaises(ValueError, list, zip(BadSeq(), BadSeq())) |
| |
| def test_format(self): |
| # Test the basic machinery of the format() builtin. Don't test |
| # the specifics of the various formatters |
| self.assertEqual(format(3, ''), '3') |
| |
| # Returns some classes to use for various tests. There's |
| # an old-style version, and a new-style version |
| def classes_new(): |
| class A(object): |
| def __init__(self, x): |
| self.x = x |
| def __format__(self, format_spec): |
| return str(self.x) + format_spec |
| class DerivedFromA(A): |
| pass |
| |
| class Simple(object): pass |
| class DerivedFromSimple(Simple): |
| def __init__(self, x): |
| self.x = x |
| def __format__(self, format_spec): |
| return str(self.x) + format_spec |
| class DerivedFromSimple2(DerivedFromSimple): pass |
| return A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2 |
| |
| def class_test(A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2): |
| self.assertEqual(format(A(3), 'spec'), '3spec') |
| self.assertEqual(format(DerivedFromA(4), 'spec'), '4spec') |
| self.assertEqual(format(DerivedFromSimple(5), 'abc'), '5abc') |
| self.assertEqual(format(DerivedFromSimple2(10), 'abcdef'), |
| '10abcdef') |
| |
| class_test(*classes_new()) |
| |
| def empty_format_spec(value): |
| # test that: |
| # format(x, '') == str(x) |
| # format(x) == str(x) |
| self.assertEqual(format(value, ""), str(value)) |
| self.assertEqual(format(value), str(value)) |
| |
| # for builtin types, format(x, "") == str(x) |
| empty_format_spec(17**13) |
| empty_format_spec(1.0) |
| empty_format_spec(3.1415e104) |
| empty_format_spec(-3.1415e104) |
| empty_format_spec(3.1415e-104) |
| empty_format_spec(-3.1415e-104) |
| empty_format_spec(object) |
| empty_format_spec(None) |
| |
| # TypeError because self.__format__ returns the wrong type |
| class BadFormatResult: |
| def __format__(self, format_spec): |
| return 1.0 |
| self.assertRaises(TypeError, format, BadFormatResult(), "") |
| |
| # TypeError because format_spec is not unicode or str |
| self.assertRaises(TypeError, format, object(), 4) |
| self.assertRaises(TypeError, format, object(), object()) |
| |
| # tests for object.__format__ really belong elsewhere, but |
| # there's no good place to put them |
| x = object().__format__('') |
| self.assertTrue(x.startswith('<object object at')) |
| |
| # first argument to object.__format__ must be string |
| self.assertRaises(TypeError, object().__format__, 3) |
| self.assertRaises(TypeError, object().__format__, object()) |
| self.assertRaises(TypeError, object().__format__, None) |
| |
| # -------------------------------------------------------------------- |
| # Issue #7994: object.__format__ with a non-empty format string is |
| # pending deprecated |
| def test_deprecated_format_string(obj, fmt_str, should_raise_warning): |
| with warnings.catch_warnings(record=True) as w: |
| warnings.simplefilter("always", PendingDeprecationWarning) |
| format(obj, fmt_str) |
| if should_raise_warning: |
| self.assertEqual(len(w), 1) |
| self.assertIsInstance(w[0].message, PendingDeprecationWarning) |
| self.assertIn('object.__format__ with a non-empty format ' |
| 'string', str(w[0].message)) |
| else: |
| self.assertEqual(len(w), 0) |
| |
| fmt_strs = ['', 's'] |
| |
| class A: |
| def __format__(self, fmt_str): |
| return format('', fmt_str) |
| |
| for fmt_str in fmt_strs: |
| test_deprecated_format_string(A(), fmt_str, False) |
| |
| class B: |
| pass |
| |
| class C(object): |
| pass |
| |
| for cls in [object, B, C]: |
| for fmt_str in fmt_strs: |
| test_deprecated_format_string(cls(), fmt_str, len(fmt_str) != 0) |
| # -------------------------------------------------------------------- |
| |
| # make sure we can take a subclass of str as a format spec |
| class DerivedFromStr(str): pass |
| self.assertEqual(format(0, DerivedFromStr('10')), ' 0') |
| |
| def test_bin(self): |
| self.assertEqual(bin(0), '0b0') |
| self.assertEqual(bin(1), '0b1') |
| self.assertEqual(bin(-1), '-0b1') |
| self.assertEqual(bin(2**65), '0b1' + '0' * 65) |
| self.assertEqual(bin(2**65-1), '0b' + '1' * 65) |
| self.assertEqual(bin(-(2**65)), '-0b1' + '0' * 65) |
| self.assertEqual(bin(-(2**65-1)), '-0b' + '1' * 65) |
| |
| def test_bytearray_translate(self): |
| x = bytearray(b"abc") |
| self.assertRaises(ValueError, x.translate, b"1", 1) |
| self.assertRaises(TypeError, x.translate, b"1"*256, 1) |
| |
| class TestSorted(unittest.TestCase): |
| |
| def test_basic(self): |
| data = list(range(100)) |
| copy = data[:] |
| random.shuffle(copy) |
| self.assertEqual(data, sorted(copy)) |
| self.assertNotEqual(data, copy) |
| |
| data.reverse() |
| random.shuffle(copy) |
| self.assertEqual(data, sorted(copy, key=lambda x: -x)) |
| self.assertNotEqual(data, copy) |
| random.shuffle(copy) |
| self.assertEqual(data, sorted(copy, reverse=1)) |
| self.assertNotEqual(data, copy) |
| |
| def test_inputtypes(self): |
| s = 'abracadabra' |
| types = [list, tuple, str] |
| for T in types: |
| self.assertEqual(sorted(s), sorted(T(s))) |
| |
| s = ''.join(set(s)) # unique letters only |
| types = [str, set, frozenset, list, tuple, dict.fromkeys] |
| for T in types: |
| self.assertEqual(sorted(s), sorted(T(s))) |
| |
| def test_baddecorator(self): |
| data = 'The quick Brown fox Jumped over The lazy Dog'.split() |
| self.assertRaises(TypeError, sorted, data, None, lambda x,y: 0) |
| |
| def test_main(verbose=None): |
| test_classes = (BuiltinTest, TestSorted) |
| |
| run_unittest(*test_classes) |
| |
| # verify reference counting |
| if verbose and hasattr(sys, "gettotalrefcount"): |
| import gc |
| counts = [None] * 5 |
| for i in range(len(counts)): |
| run_unittest(*test_classes) |
| gc.collect() |
| counts[i] = sys.gettotalrefcount() |
| print(counts) |
| |
| |
| if __name__ == "__main__": |
| test_main(verbose=True) |