diff options
Diffstat (limited to 'lib/python2.7/test/test_int.py')
-rw-r--r-- | lib/python2.7/test/test_int.py | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/lib/python2.7/test/test_int.py b/lib/python2.7/test/test_int.py deleted file mode 100644 index 365f9a2..0000000 --- a/lib/python2.7/test/test_int.py +++ /dev/null @@ -1,467 +0,0 @@ -import sys - -import unittest -from test import test_support -from test.test_support import run_unittest, have_unicode -import math - -L = [ - ('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.maxint), sys.maxint), - (' 1x', ValueError), - (' 1 ', 1), - (' 1\02 ', ValueError), - ('', ValueError), - (' ', ValueError), - (' \t\t ', ValueError) -] -if have_unicode: - L += [ - (unicode('0'), 0), - (unicode('1'), 1), - (unicode('9'), 9), - (unicode('10'), 10), - (unicode('99'), 99), - (unicode('100'), 100), - (unicode('314'), 314), - (unicode(' 314'), 314), - (unicode('\u0663\u0661\u0664 ','raw-unicode-escape'), 314), - (unicode(' \t\t 314 \t\t '), 314), - (unicode(' 1x'), ValueError), - (unicode(' 1 '), 1), - (unicode(' 1\02 '), ValueError), - (unicode(''), ValueError), - (unicode(' '), ValueError), - (unicode(' \t\t '), ValueError), - (unichr(0x200), ValueError), -] - -class IntLongCommonTests(object): - - """Mixin of test cases to share between both test_int and test_long.""" - - # Change to int or long in the TestCase subclass. - ntype = None - - def test_no_args(self): - self.assertEqual(self.ntype(), 0) - - def test_keyword_args(self): - # Test invoking constructor using keyword arguments. - self.assertEqual(self.ntype(x=1.2), 1) - self.assertEqual(self.ntype('100', base=2), 4) - self.assertEqual(self.ntype(x='100', base=2), 4) - self.assertRaises(TypeError, self.ntype, base=10) - self.assertRaises(TypeError, self.ntype, base=0) - -class IntTestCases(IntLongCommonTests, unittest.TestCase): - - ntype = int - - def test_basic(self): - self.assertEqual(int(314), 314) - self.assertEqual(int(3.14), 3) - self.assertEqual(int(314L), 314) - # Check that conversion from float truncates towards zero - self.assertEqual(int(-3.14), -3) - self.assertEqual(int(3.9), 3) - self.assertEqual(int(-3.9), -3) - self.assertEqual(int(3.5), 3) - self.assertEqual(int(-3.5), -3) - # Different base: - self.assertEqual(int("10",16), 16L) - if have_unicode: - self.assertEqual(int(unicode("10"),16), 16L) - # Test conversion from strings and various anomalies - for s, v in L: - for sign in "", "+", "-": - for prefix in "", " ", "\t", " \t\t ": - ss = prefix + sign + s - vv = v - if sign == "-" and v is not ValueError: - vv = -v - try: - self.assertEqual(int(ss), vv) - except v: - pass - - s = repr(-1-sys.maxint) - x = int(s) - self.assertEqual(x+1, -sys.maxint) - self.assertIsInstance(x, int) - # should return long - self.assertEqual(int(s[1:]), sys.maxint+1) - - # should return long - x = int(1e100) - self.assertIsInstance(x, long) - x = int(-1e100) - self.assertIsInstance(x, long) - - - # SF bug 434186: 0x80000000/2 != 0x80000000>>1. - # Worked by accident in Windows release build, but failed in debug build. - # Failed in all Linux builds. - x = -1-sys.maxint - self.assertEqual(x >> 1, x//2) - - self.assertRaises(ValueError, int, '123\0') - self.assertRaises(ValueError, int, '53', 40) - - # SF bug 1545497: embedded NULs were not detected with - # explicit base - self.assertRaises(ValueError, int, '123\0', 10) - self.assertRaises(ValueError, int, '123\x00 245', 20) - - x = int('1' * 600) - self.assertIsInstance(x, long) - - if have_unicode: - x = int(unichr(0x661) * 600) - self.assertIsInstance(x, long) - - self.assertRaises(TypeError, int, 1, 12) - - self.assertEqual(int('0123', 0), 83) - self.assertEqual(int('0x123', 16), 291) - - # Bug 1679: "0x" is not a valid hex literal - self.assertRaises(ValueError, int, "0x", 16) - self.assertRaises(ValueError, int, "0x", 0) - - self.assertRaises(ValueError, int, "0o", 8) - self.assertRaises(ValueError, int, "0o", 0) - - self.assertRaises(ValueError, int, "0b", 2) - self.assertRaises(ValueError, int, "0b", 0) - - - # SF bug 1334662: int(string, base) wrong answers - # Various representations of 2**32 evaluated to 0 - # rather than 2**32 in previous versions - - self.assertEqual(int('100000000000000000000000000000000', 2), 4294967296L) - self.assertEqual(int('102002022201221111211', 3), 4294967296L) - self.assertEqual(int('10000000000000000', 4), 4294967296L) - self.assertEqual(int('32244002423141', 5), 4294967296L) - self.assertEqual(int('1550104015504', 6), 4294967296L) - self.assertEqual(int('211301422354', 7), 4294967296L) - self.assertEqual(int('40000000000', 8), 4294967296L) - self.assertEqual(int('12068657454', 9), 4294967296L) - self.assertEqual(int('4294967296', 10), 4294967296L) - self.assertEqual(int('1904440554', 11), 4294967296L) - self.assertEqual(int('9ba461594', 12), 4294967296L) - self.assertEqual(int('535a79889', 13), 4294967296L) - self.assertEqual(int('2ca5b7464', 14), 4294967296L) - self.assertEqual(int('1a20dcd81', 15), 4294967296L) - self.assertEqual(int('100000000', 16), 4294967296L) - self.assertEqual(int('a7ffda91', 17), 4294967296L) - self.assertEqual(int('704he7g4', 18), 4294967296L) - self.assertEqual(int('4f5aff66', 19), 4294967296L) - self.assertEqual(int('3723ai4g', 20), 4294967296L) - self.assertEqual(int('281d55i4', 21), 4294967296L) - self.assertEqual(int('1fj8b184', 22), 4294967296L) - self.assertEqual(int('1606k7ic', 23), 4294967296L) - self.assertEqual(int('mb994ag', 24), 4294967296L) - self.assertEqual(int('hek2mgl', 25), 4294967296L) - self.assertEqual(int('dnchbnm', 26), 4294967296L) - self.assertEqual(int('b28jpdm', 27), 4294967296L) - self.assertEqual(int('8pfgih4', 28), 4294967296L) - self.assertEqual(int('76beigg', 29), 4294967296L) - self.assertEqual(int('5qmcpqg', 30), 4294967296L) - self.assertEqual(int('4q0jto4', 31), 4294967296L) - self.assertEqual(int('4000000', 32), 4294967296L) - self.assertEqual(int('3aokq94', 33), 4294967296L) - self.assertEqual(int('2qhxjli', 34), 4294967296L) - self.assertEqual(int('2br45qb', 35), 4294967296L) - self.assertEqual(int('1z141z4', 36), 4294967296L) - - # tests with base 0 - # this fails on 3.0, but in 2.x the old octal syntax is allowed - self.assertEqual(int(' 0123 ', 0), 83) - self.assertEqual(int(' 0123 ', 0), 83) - self.assertEqual(int('000', 0), 0) - self.assertEqual(int('0o123', 0), 83) - self.assertEqual(int('0x123', 0), 291) - self.assertEqual(int('0b100', 0), 4) - self.assertEqual(int(' 0O123 ', 0), 83) - self.assertEqual(int(' 0X123 ', 0), 291) - self.assertEqual(int(' 0B100 ', 0), 4) - self.assertEqual(int('0', 0), 0) - self.assertEqual(int('+0', 0), 0) - self.assertEqual(int('-0', 0), 0) - self.assertEqual(int('00', 0), 0) - self.assertRaises(ValueError, int, '08', 0) - self.assertRaises(ValueError, int, '-012395', 0) - - # without base still base 10 - self.assertEqual(int('0123'), 123) - self.assertEqual(int('0123', 10), 123) - - # tests with prefix and base != 0 - self.assertEqual(int('0x123', 16), 291) - self.assertEqual(int('0o123', 8), 83) - self.assertEqual(int('0b100', 2), 4) - self.assertEqual(int('0X123', 16), 291) - self.assertEqual(int('0O123', 8), 83) - self.assertEqual(int('0B100', 2), 4) - - # the code has special checks for the first character after the - # type prefix - self.assertRaises(ValueError, int, '0b2', 2) - self.assertRaises(ValueError, int, '0b02', 2) - self.assertRaises(ValueError, int, '0B2', 2) - self.assertRaises(ValueError, int, '0B02', 2) - self.assertRaises(ValueError, int, '0o8', 8) - self.assertRaises(ValueError, int, '0o08', 8) - self.assertRaises(ValueError, int, '0O8', 8) - self.assertRaises(ValueError, int, '0O08', 8) - self.assertRaises(ValueError, int, '0xg', 16) - self.assertRaises(ValueError, int, '0x0g', 16) - self.assertRaises(ValueError, int, '0Xg', 16) - self.assertRaises(ValueError, int, '0X0g', 16) - - # SF bug 1334662: int(string, base) wrong answers - # Checks for proper evaluation of 2**32 + 1 - self.assertEqual(int('100000000000000000000000000000001', 2), 4294967297L) - self.assertEqual(int('102002022201221111212', 3), 4294967297L) - self.assertEqual(int('10000000000000001', 4), 4294967297L) - self.assertEqual(int('32244002423142', 5), 4294967297L) - self.assertEqual(int('1550104015505', 6), 4294967297L) - self.assertEqual(int('211301422355', 7), 4294967297L) - self.assertEqual(int('40000000001', 8), 4294967297L) - self.assertEqual(int('12068657455', 9), 4294967297L) - self.assertEqual(int('4294967297', 10), 4294967297L) - self.assertEqual(int('1904440555', 11), 4294967297L) - self.assertEqual(int('9ba461595', 12), 4294967297L) - self.assertEqual(int('535a7988a', 13), 4294967297L) - self.assertEqual(int('2ca5b7465', 14), 4294967297L) - self.assertEqual(int('1a20dcd82', 15), 4294967297L) - self.assertEqual(int('100000001', 16), 4294967297L) - self.assertEqual(int('a7ffda92', 17), 4294967297L) - self.assertEqual(int('704he7g5', 18), 4294967297L) - self.assertEqual(int('4f5aff67', 19), 4294967297L) - self.assertEqual(int('3723ai4h', 20), 4294967297L) - self.assertEqual(int('281d55i5', 21), 4294967297L) - self.assertEqual(int('1fj8b185', 22), 4294967297L) - self.assertEqual(int('1606k7id', 23), 4294967297L) - self.assertEqual(int('mb994ah', 24), 4294967297L) - self.assertEqual(int('hek2mgm', 25), 4294967297L) - self.assertEqual(int('dnchbnn', 26), 4294967297L) - self.assertEqual(int('b28jpdn', 27), 4294967297L) - self.assertEqual(int('8pfgih5', 28), 4294967297L) - self.assertEqual(int('76beigh', 29), 4294967297L) - self.assertEqual(int('5qmcpqh', 30), 4294967297L) - self.assertEqual(int('4q0jto5', 31), 4294967297L) - self.assertEqual(int('4000001', 32), 4294967297L) - self.assertEqual(int('3aokq95', 33), 4294967297L) - self.assertEqual(int('2qhxjlj', 34), 4294967297L) - self.assertEqual(int('2br45qc', 35), 4294967297L) - self.assertEqual(int('1z141z5', 36), 4294967297L) - - def test_bit_length(self): - tiny = 1e-10 - for x in xrange(-65000, 65000): - k = x.bit_length() - # Check equivalence with Python version - self.assertEqual(k, len(bin(x).lstrip('-0b'))) - # Behaviour as specified in the docs - if x != 0: - self.assertTrue(2**(k-1) <= abs(x) < 2**k) - else: - self.assertEqual(k, 0) - # Alternative definition: x.bit_length() == 1 + floor(log_2(x)) - if x != 0: - # When x is an exact power of 2, numeric errors can - # cause floor(log(x)/log(2)) to be one too small; for - # small x this can be fixed by adding a small quantity - # to the quotient before taking the floor. - self.assertEqual(k, 1 + math.floor( - math.log(abs(x))/math.log(2) + tiny)) - - self.assertEqual((0).bit_length(), 0) - self.assertEqual((1).bit_length(), 1) - self.assertEqual((-1).bit_length(), 1) - self.assertEqual((2).bit_length(), 2) - self.assertEqual((-2).bit_length(), 2) - for i in [2, 3, 15, 16, 17, 31, 32, 33, 63, 64]: - a = 2**i - self.assertEqual((a-1).bit_length(), i) - self.assertEqual((1-a).bit_length(), i) - self.assertEqual((a).bit_length(), i+1) - self.assertEqual((-a).bit_length(), i+1) - self.assertEqual((a+1).bit_length(), i+1) - self.assertEqual((-a-1).bit_length(), i+1) - - @unittest.skipUnless(float.__getformat__("double").startswith("IEEE"), - "test requires IEEE 754 doubles") - def test_float_conversion(self): - # values exactly representable as floats - exact_values = [-2, -1, 0, 1, 2, 2**52, 2**53-1, 2**53, 2**53+2, - 2**53+4, 2**54-4, 2**54-2, 2**63, -2**63, 2**64, - -2**64, 10**20, 10**21, 10**22] - for value in exact_values: - self.assertEqual(int(float(int(value))), value) - - # test round-half-to-even - self.assertEqual(int(float(2**53+1)), 2**53) - self.assertEqual(int(float(2**53+2)), 2**53+2) - self.assertEqual(int(float(2**53+3)), 2**53+4) - self.assertEqual(int(float(2**53+5)), 2**53+4) - self.assertEqual(int(float(2**53+6)), 2**53+6) - self.assertEqual(int(float(2**53+7)), 2**53+8) - - self.assertEqual(int(float(-2**53-1)), -2**53) - self.assertEqual(int(float(-2**53-2)), -2**53-2) - self.assertEqual(int(float(-2**53-3)), -2**53-4) - self.assertEqual(int(float(-2**53-5)), -2**53-4) - self.assertEqual(int(float(-2**53-6)), -2**53-6) - self.assertEqual(int(float(-2**53-7)), -2**53-8) - - self.assertEqual(int(float(2**54-2)), 2**54-2) - self.assertEqual(int(float(2**54-1)), 2**54) - self.assertEqual(int(float(2**54+2)), 2**54) - self.assertEqual(int(float(2**54+3)), 2**54+4) - self.assertEqual(int(float(2**54+5)), 2**54+4) - self.assertEqual(int(float(2**54+6)), 2**54+8) - self.assertEqual(int(float(2**54+10)), 2**54+8) - self.assertEqual(int(float(2**54+11)), 2**54+12) - - def test_valid_non_numeric_input_types_for_x(self): - # Test possible valid non-numeric types for x, including subclasses - # of the allowed built-in types. - class CustomStr(str): pass - values = ['100', CustomStr('100')] - - if have_unicode: - class CustomUnicode(unicode): pass - values += [unicode('100'), CustomUnicode(unicode('100'))] - - for x in values: - msg = 'x has value %s and type %s' % (x, type(x).__name__) - try: - self.assertEqual(int(x), 100, msg=msg) - self.assertEqual(int(x, 2), 4, msg=msg) - except TypeError, err: - raise AssertionError('For %s got TypeError: %s' % - (type(x).__name__, err)) - - def test_error_on_string_float_for_x(self): - self.assertRaises(ValueError, int, '1.2') - - def test_error_on_bytearray_for_x(self): - self.assertRaises(TypeError, int, bytearray('100'), 2) - - def test_error_on_invalid_int_bases(self): - for base in [-1, 1, 1000]: - self.assertRaises(ValueError, int, '100', base) - - def test_error_on_string_base(self): - self.assertRaises(TypeError, int, 100, base='foo') - - @test_support.cpython_only - def test_small_ints(self): - self.assertIs(int('10'), 10) - self.assertIs(int('-1'), -1) - if have_unicode: - self.assertIs(int(u'10'), 10) - self.assertIs(int(u'-1'), -1) - - def test_intconversion(self): - # Test __int__() - class ClassicMissingMethods: - pass - self.assertRaises(AttributeError, int, ClassicMissingMethods()) - - class MissingMethods(object): - pass - self.assertRaises(TypeError, int, MissingMethods()) - - class Foo0: - def __int__(self): - return 42 - - class Foo1(object): - def __int__(self): - return 42 - - class Foo2(int): - def __int__(self): - return 42 - - class Foo3(int): - def __int__(self): - return self - - class Foo4(int): - def __int__(self): - return 42L - - class Foo5(int): - def __int__(self): - return 42. - - self.assertEqual(int(Foo0()), 42) - self.assertEqual(int(Foo1()), 42) - self.assertEqual(int(Foo2()), 42) - self.assertEqual(int(Foo3()), 0) - self.assertEqual(int(Foo4()), 42L) - self.assertRaises(TypeError, int, Foo5()) - - class Classic: - pass - for base in (object, Classic): - class IntOverridesTrunc(base): - def __int__(self): - return 42 - def __trunc__(self): - return -12 - self.assertEqual(int(IntOverridesTrunc()), 42) - - class JustTrunc(base): - def __trunc__(self): - return 42 - self.assertEqual(int(JustTrunc()), 42) - - for trunc_result_base in (object, Classic): - class Integral(trunc_result_base): - def __int__(self): - return 42 - - class TruncReturnsNonInt(base): - def __trunc__(self): - return Integral() - self.assertEqual(int(TruncReturnsNonInt()), 42) - - class NonIntegral(trunc_result_base): - def __trunc__(self): - # Check that we avoid infinite recursion. - return NonIntegral() - - class TruncReturnsNonIntegral(base): - def __trunc__(self): - return NonIntegral() - try: - int(TruncReturnsNonIntegral()) - except TypeError as e: - self.assertEqual(str(e), - "__trunc__ returned non-Integral" - " (type NonIntegral)") - else: - self.fail("Failed to raise TypeError with %s" % - ((base, trunc_result_base),)) - -def test_main(): - run_unittest(IntTestCases) - -if __name__ == "__main__": - test_main() |