# Python test set -- built-in functions import platform import unittest from test.support import fcmp, TESTFN, unlink, run_unittest, check_warnings from operator import neg import sys, warnings, random, collections, io import builtins 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') 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: {...}}') def test_neg(self): x = -sys.maxsize-1 self.assertTrue(isinstance(x, int)) self.assertEqual(-x, sys.maxsize+1) # XXX(nnorwitz): This test case for callable should probably be removed. def test_callable(self): self.assertTrue(hasattr(len, '__call__')) def f(): pass self.assertTrue(hasattr(f, '__call__')) class C: def meth(self): pass self.assertTrue(hasattr(C, '__call__')) x = C() self.assertTrue(hasattr(x.meth, '__call__')) self.assertTrue(not hasattr(x, '__call__')) class D(C): def __call__(self): pass y = D() self.assertTrue(hasattr(y, '__call__')) y() 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', '', 'badmode') self.assertRaises(ValueError, compile, 'print(42)\n', '', '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') def test_delattr(self): import sys 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) import sys self.assertIn('exit', dir(sys)) # dir(module_with_invalid__dict__) import types 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="") 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): import sys 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): import sys 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 allows SystemExit and KeyboardInterrupts by class A: def __getattr__(self, what): raise KeyboardInterrupt self.assertRaises(KeyboardInterrupt, hasattr, A(), "b") class B: def __getattr__(self, what): raise SystemExit self.assertRaises(SystemExit, 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.assertEquals(type(hash(X())), int) class Z(int): def __hash__(self): return self self.assertEquals(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()) 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.assertEquals(next(it, 42), 42) class Iter(object): def __iter__(self): return self def __next__(self): raise StopIteration it = iter(Iter()) self.assertEquals(next(it, 42), 42) self.assertRaises(StopIteration, next, it) def gen(): yield 1 return it = gen() self.assertEquals(next(it), 1) self.assertRaises(StopIteration, next, it) self.assertEquals(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_range(self): self.assertEqual(list(range(3)), [0, 1, 2]) self.assertEqual(list(range(1, 5)), [1, 2, 3, 4]) self.assertEqual(list(range(0)), []) self.assertEqual(list(range(-3)), []) self.assertEqual(list(range(1, 10, 3)), [1, 4, 7]) #self.assertEqual(list(range(5, -5, -3)), [5, 2, -1, -4]) #issue 6334: the internal stored range length was being #computed incorrectly in some cases involving large arguments. x = range(10**20, 10**20+10, 3) self.assertEqual(len(x), 4) self.assertEqual(len(list(x)), 4) x = range(10**20+10, 10**20, 3) self.assertEqual(len(x), 0) self.assertEqual(len(list(x)), 0) x = range(10**20, 10**20+10, -3) self.assertEqual(len(x), 0) self.assertEqual(len(list(x)), 0) x = range(10**20+10, 10**20, -3) self.assertEqual(len(x), 4) self.assertEqual(len(list(x)), 4) # Now test range() with longs self.assertEqual(list(range(-2**100)), []) self.assertEqual(list(range(0, -2**100)), []) self.assertEqual(list(range(0, 2**100, -1)), []) self.assertEqual(list(range(0, 2**100, -1)), []) a = int(10 * sys.maxsize) b = int(100 * sys.maxsize) c = int(50 * sys.maxsize) self.assertEqual(list(range(a, a+2)), [a, a+1]) self.assertEqual(list(range(a+2, a, -1)), [a+2, a+1]) self.assertEqual(list(range(a+4, a, -2)), [a+4, a+2]) seq = list(range(a, b, c)) self.assertIn(a, seq) self.assertNotIn(b, seq) self.assertEqual(len(seq), 2) seq = list(range(b, a, -c)) self.assertIn(b, seq) self.assertNotIn(a, seq) self.assertEqual(len(seq), 2) seq = list(range(-a, -b, -c)) self.assertIn(-a, seq) self.assertNotIn(-b, seq) self.assertEqual(len(seq), 2) self.assertRaises(TypeError, range) self.assertRaises(TypeError, range, 1, 2, 3, 4) self.assertRaises(ValueError, range, 1, 2, 0) self.assertRaises(ValueError, range, a, a + 1, int(0)) """ XXX(nnorwitz): class badzero(int): def __eq__(self, other): raise RuntimeError __ne__ = __lt__ = __gt__ = __le__ = __ge__ = __eq__ # XXX This won't (but should!) raise RuntimeError if a is an int... self.assertRaises(RuntimeError, range, a, a + 1, badzero(1)) """ # Reject floats. self.assertRaises(TypeError, range, 1., 1., 1.) self.assertRaises(TypeError, range, 1e100, 1e101, 1e101) self.assertRaises(TypeError, range, 0, "spam") self.assertRaises(TypeError, range, 0, 42, "spam") #NEAL self.assertRaises(OverflowError, range, -sys.maxsize, sys.maxsize) #NEAL self.assertRaises(OverflowError, range, 0, 2*sys.maxsize) self.assertRaises(OverflowError, len, range(0, sys.maxsize**10)) bignum = 2*sys.maxsize smallnum = 42 # User-defined class with an __index__ method class I: def __init__(self, n): self.n = int(n) def __index__(self): return self.n self.assertEqual(list(range(I(bignum), I(bignum + 1))), [bignum]) self.assertEqual(list(range(I(smallnum), I(smallnum + 1))), [smallnum]) # User-defined class with a failing __index__ method class IX: def __index__(self): raise RuntimeError self.assertRaises(RuntimeError, range, IX()) # User-defined class with an invalid __index__ method class IN: def __index__(self): return "not a number" self.assertRaises(TypeError, range, IN()) # Exercise various combinations of bad arguments, to check # refcounting logic self.assertRaises(TypeError, range, 0.0) self.assertRaises(TypeError, range, 0, 0.0) self.assertRaises(TypeError, range, 0.0, 0) self.assertRaises(TypeError, range, 0.0, 0.0) self.assertRaises(TypeError, range, 0, 0, 1.0) self.assertRaises(TypeError, range, 0, 0.0, 1) self.assertRaises(TypeError, range, 0, 0.0, 1.0) self.assertRaises(TypeError, range, 0.0, 0, 1) self.assertRaises(TypeError, range, 0.0, 0, 1.0) self.assertRaises(TypeError, range, 0.0, 0.0, 1) self.assertRaises(TypeError, range, 0.0, 0.0, 1.0) 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) 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() def test_vars(self): self.assertEqual(set(vars()), set(dir())) import sys 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) 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()) # 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_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)