# Python test set -- built-in functions import test.support, unittest from test.support import fcmp, TESTFN, unlink, run_unittest, \ run_with_locale from operator import neg import sys, warnings, random, collections, io, fractions warnings.filterwarnings("ignore", "hex../oct.. of negative int", FutureWarning, __name__) warnings.filterwarnings("ignore", "integer argument expected", DeprecationWarning, "unittest") 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) # long self.assertEqual(abs(0), 0) self.assertEqual(abs(1234), 1234) self.assertEqual(abs(-1234), 1234) # 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(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.assert_(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.assert_(hasattr(len, '__call__')) def f(): pass self.assert_(hasattr(f, '__call__')) class C: def meth(self): pass self.assert_(hasattr(C, '__call__')) x = C() self.assert_(hasattr(x.meth, '__call__')) self.assert_(not hasattr(x, '__call__')) class D(C): def __call__(self): pass y = D() self.assert_(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.assertEqual(cmp(-1, 1), -1) self.assertEqual(cmp(1, -1), 1) self.assertEqual(cmp(1, 1), 0) # verify that circular objects are not handled a = []; a.append(a) b = []; b.append(b) from collections import UserList c = UserList(); c.append(c) self.assertRaises(RuntimeError, cmp, a, b) self.assertRaises(RuntimeError, cmp, b, c) self.assertRaises(RuntimeError, cmp, c, a) self.assertRaises(RuntimeError, cmp, a, c) # okay, now break the cycles a.pop(); b.pop(); c.pop() self.assertRaises(TypeError, 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.assert_('local_var' in dir()) # dir(module) import sys self.assert_('exit' in 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.assert_("strip" in dir(str)) self.assert_("__mro__" not in dir(str)) # dir(obj) class Foo(object): def __init__(self): self.x = 7 self.y = 8 self.z = 9 f = Foo() self.assert_("y" in dir(f)) # dir(obj_no__dict__) class Foo(object): __slots__ = [] f = Foo() self.assert_("__repr__" in 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.assert_("__repr__" not in dir(f)) self.assert_("bar" in dir(f)) # dir(obj_using __dir__) class Foo(object): def __dir__(self): return ["kan", "ga", "roo"] f = Foo() self.assert_(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(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(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.assert_(not fcmp(divmod(3.25, 1.0), (3.0, 0.25))) self.assert_(not fcmp(divmod(-3.25, 1.0), (-4.0, 0.75))) self.assert_(not fcmp(divmod(3.25, -1.0), (-4.0, -0.75))) self.assert_(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 = {} import 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.assert_(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)) def test_hasattr(self): import sys self.assert_(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 Y(object): def __hash__(self): return 2**100 self.assertEquals(type(hash(Y())), 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.assertEqual(hex(-16), '-0x10') self.assertEqual(hex(-16), '-0x10') self.assertRaises(TypeError, hex, {}) def test_id(self): id(None) id(1) 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.assert_(isinstance(c, C)) self.assert_(isinstance(d, C)) self.assert_(not isinstance(e, C)) self.assert_(not isinstance(c, D)) self.assert_(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.assert_(issubclass(D, C)) self.assert_(issubclass(C, C)) self.assert_(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()) 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()) class BadNumber: def __cmp__(self, other): raise ValueError self.assertRaises(TypeError, min, (42, BadNumber())) 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.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('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(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.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, 2.0: for y in 10, 10, 10.0: for z in 1000, 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, -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]) """ XXX(nnorwitz): # 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.assert_(a in seq) self.assert_(b not in seq) self.assertEqual(len(seq), 2) seq = list(range(b, a, -c)) self.assert_(b in seq) self.assert_(a not in seq) self.assertEqual(len(seq), 2) seq = list(range(-a, -b, -c)) self.assert_(-a in seq) self.assert_(-b not in 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)) 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 when it would require PyLongs to represent. # (smaller floats still accepted, but deprecated) 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)) 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('testing\n'), "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(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)), float) self.assertEqual(type(round(-8, 0)), float) self.assertEqual(type(round(-8, 1)), float) # 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) 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()) 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) 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)