| # Python test set -- part 6, built-in types |
| |
| from test.test_support import run_unittest, have_unicode |
| import unittest |
| import sys |
| |
| class TypesTests(unittest.TestCase): |
| |
| def test_truth_values(self): |
| if None: self.fail('None is true instead of false') |
| if 0: self.fail('0 is true instead of false') |
| if 0: self.fail('0L is true instead of false') |
| if 0.0: self.fail('0.0 is true instead of false') |
| if '': self.fail('\'\' is true instead of false') |
| if not 1: self.fail('1 is false instead of true') |
| if not 1: self.fail('1L is false instead of true') |
| if not 1.0: self.fail('1.0 is false instead of true') |
| if not 'x': self.fail('\'x\' is false instead of true') |
| if not {'x': 1}: self.fail('{\'x\': 1} is false instead of true') |
| def f(): pass |
| class C: pass |
| import sys |
| x = C() |
| if not f: self.fail('f is false instead of true') |
| if not C: self.fail('C is false instead of true') |
| if not sys: self.fail('sys is false instead of true') |
| if not x: self.fail('x is false instead of true') |
| |
| def test_boolean_ops(self): |
| if 0 or 0: self.fail('0 or 0 is true instead of false') |
| if 1 and 1: pass |
| else: self.fail('1 and 1 is false instead of true') |
| if not 1: self.fail('not 1 is true instead of false') |
| |
| def test_comparisons(self): |
| if 0 < 1 <= 1 == 1 >= 1 > 0 != 1: pass |
| else: self.fail('int comparisons failed') |
| if 0 < 1 <= 1 == 1 >= 1 > 0 != 1: pass |
| else: self.fail('long int comparisons failed') |
| if 0.0 < 1.0 <= 1.0 == 1.0 >= 1.0 > 0.0 != 1.0: pass |
| else: self.fail('float comparisons failed') |
| if '' < 'a' <= 'a' == 'a' < 'abc' < 'abd' < 'b': pass |
| else: self.fail('string comparisons failed') |
| if None is None: pass |
| else: self.fail('identity test failed') |
| |
| def test_float_constructor(self): |
| self.assertRaises(ValueError, float, '') |
| self.assertRaises(ValueError, float, '5\0') |
| |
| def test_zero_division(self): |
| try: 5.0 / 0.0 |
| except ZeroDivisionError: pass |
| else: self.fail("5.0 / 0.0 didn't raise ZeroDivisionError") |
| |
| try: 5.0 // 0.0 |
| except ZeroDivisionError: pass |
| else: self.fail("5.0 // 0.0 didn't raise ZeroDivisionError") |
| |
| try: 5.0 % 0.0 |
| except ZeroDivisionError: pass |
| else: self.fail("5.0 % 0.0 didn't raise ZeroDivisionError") |
| |
| try: 5 / 0 |
| except ZeroDivisionError: pass |
| else: self.fail("5 / 0L didn't raise ZeroDivisionError") |
| |
| try: 5 // 0 |
| except ZeroDivisionError: pass |
| else: self.fail("5 // 0L didn't raise ZeroDivisionError") |
| |
| try: 5 % 0 |
| except ZeroDivisionError: pass |
| else: self.fail("5 % 0L didn't raise ZeroDivisionError") |
| |
| def test_numeric_types(self): |
| if 0 != 0 or 0 != 0.0 or 0 != 0.0: self.fail('mixed comparisons') |
| if 1 != 1 or 1 != 1.0 or 1 != 1.0: self.fail('mixed comparisons') |
| if -1 != -1 or -1 != -1.0 or -1 != -1.0: |
| self.fail('int/long/float value not equal') |
| # calling built-in types without argument must return 0 |
| if int() != 0: self.fail('int() does not return 0') |
| if int() != 0: self.fail('long() does not return 0L') |
| if float() != 0.0: self.fail('float() does not return 0.0') |
| if int(1.9) == 1 == int(1.1) and int(-1.1) == -1 == int(-1.9): pass |
| else: self.fail('int() does not round properly') |
| if int(1.9) == 1 == int(1.1) and int(-1.1) == -1 == int(-1.9): pass |
| else: self.fail('long() does not round properly') |
| if float(1) == 1.0 and float(-1) == -1.0 and float(0) == 0.0: pass |
| else: self.fail('float() does not work properly') |
| |
| def test_normal_integers(self): |
| # Ensure the first 256 integers are shared |
| a = 256 |
| b = 128*2 |
| if a is not b: self.fail('256 is not shared') |
| if 12 + 24 != 36: self.fail('int op') |
| if 12 + (-24) != -12: self.fail('int op') |
| if (-12) + 24 != 12: self.fail('int op') |
| if (-12) + (-24) != -36: self.fail('int op') |
| if not 12 < 24: self.fail('int op') |
| if not -24 < -12: self.fail('int op') |
| # Test for a particular bug in integer multiply |
| xsize, ysize, zsize = 238, 356, 4 |
| if not (xsize*ysize*zsize == zsize*xsize*ysize == 338912): |
| self.fail('int mul commutativity') |
| # And another. |
| m = -sys.maxint - 1 |
| for divisor in 1, 2, 4, 8, 16, 32: |
| j = m // divisor |
| prod = divisor * j |
| if prod != m: |
| self.fail("%r * %r == %r != %r" % (divisor, j, prod, m)) |
| if type(prod) is not int: |
| self.fail("expected type(prod) to be int, not %r" % |
| type(prod)) |
| # Check for expected * overflow to long. |
| for divisor in 1, 2, 4, 8, 16, 32: |
| j = m // divisor - 1 |
| prod = divisor * j |
| if type(prod) is not int: |
| self.fail("expected type(%r) to be long, not %r" % |
| (prod, type(prod))) |
| # Check for expected * overflow to long. |
| m = sys.maxint |
| for divisor in 1, 2, 4, 8, 16, 32: |
| j = m // divisor + 1 |
| prod = divisor * j |
| if type(prod) is not int: |
| self.fail("expected type(%r) to be long, not %r" % |
| (prod, type(prod))) |
| |
| def test_long_integers(self): |
| if 12 + 24 != 36: self.fail('long op') |
| if 12 + (-24) != -12: self.fail('long op') |
| if (-12) + 24 != 12: self.fail('long op') |
| if (-12) + (-24) != -36: self.fail('long op') |
| if not 12 < 24: self.fail('long op') |
| if not -24 < -12: self.fail('long op') |
| x = sys.maxint |
| if int(int(x)) != x: self.fail('long op') |
| try: y = int(int(x)+1) |
| except OverflowError: self.fail('long op') |
| if not isinstance(y, int): self.fail('long op') |
| x = -x |
| if int(int(x)) != x: self.fail('long op') |
| x = x-1 |
| if int(int(x)) != x: self.fail('long op') |
| try: y = int(int(x)-1) |
| except OverflowError: self.fail('long op') |
| if not isinstance(y, int): self.fail('long op') |
| |
| try: 5 << -5 |
| except ValueError: pass |
| else: self.fail('int negative shift <<') |
| |
| try: 5 << -5 |
| except ValueError: pass |
| else: self.fail('long negative shift <<') |
| |
| try: 5 >> -5 |
| except ValueError: pass |
| else: self.fail('int negative shift >>') |
| |
| try: 5 >> -5 |
| except ValueError: pass |
| else: self.fail('long negative shift >>') |
| |
| def test_floats(self): |
| if 12.0 + 24.0 != 36.0: self.fail('float op') |
| if 12.0 + (-24.0) != -12.0: self.fail('float op') |
| if (-12.0) + 24.0 != 12.0: self.fail('float op') |
| if (-12.0) + (-24.0) != -36.0: self.fail('float op') |
| if not 12.0 < 24.0: self.fail('float op') |
| if not -24.0 < -12.0: self.fail('float op') |
| |
| def test_strings(self): |
| if len('') != 0: self.fail('len(\'\')') |
| if len('a') != 1: self.fail('len(\'a\')') |
| if len('abcdef') != 6: self.fail('len(\'abcdef\')') |
| if 'xyz' + 'abcde' != 'xyzabcde': self.fail('string concatenation') |
| if 'xyz'*3 != 'xyzxyzxyz': self.fail('string repetition *3') |
| if 0*'abcde' != '': self.fail('string repetition 0*') |
| if min('abc') != 'a' or max('abc') != 'c': self.fail('min/max string') |
| if 'a' in 'abc' and 'b' in 'abc' and 'c' in 'abc' and 'd' not in 'abc': pass |
| else: self.fail('in/not in string') |
| x = 'x'*103 |
| if '%s!'%x != x+'!': self.fail('nasty string formatting bug') |
| |
| #extended slices for strings |
| a = '0123456789' |
| self.assertEqual(a[::], a) |
| self.assertEqual(a[::2], '02468') |
| self.assertEqual(a[1::2], '13579') |
| self.assertEqual(a[::-1],'9876543210') |
| self.assertEqual(a[::-2], '97531') |
| self.assertEqual(a[3::-2], '31') |
| self.assertEqual(a[-100:100:], a) |
| self.assertEqual(a[100:-100:-1], a[::-1]) |
| self.assertEqual(a[-100:100:2], '02468') |
| |
| if have_unicode: |
| a = str('0123456789', 'ascii') |
| self.assertEqual(a[::], a) |
| self.assertEqual(a[::2], str('02468', 'ascii')) |
| self.assertEqual(a[1::2], str('13579', 'ascii')) |
| self.assertEqual(a[::-1], str('9876543210', 'ascii')) |
| self.assertEqual(a[::-2], str('97531', 'ascii')) |
| self.assertEqual(a[3::-2], str('31', 'ascii')) |
| self.assertEqual(a[-100:100:], a) |
| self.assertEqual(a[100:-100:-1], a[::-1]) |
| self.assertEqual(a[-100:100:2], str('02468', 'ascii')) |
| |
| |
| def test_type_function(self): |
| self.assertRaises(TypeError, type, 1, 2) |
| self.assertRaises(TypeError, type, 1, 2, 3, 4) |
| |
| def test_buffers(self): |
| self.assertRaises(ValueError, buffer, 'asdf', -1) |
| self.assertRaises(TypeError, buffer, None) |
| |
| a = buffer('asdf') |
| hash(a) |
| b = a * 5 |
| if a == b: |
| self.fail('buffers should not be equal') |
| if str(b) != ('asdf' * 5): |
| self.fail('repeated buffer has wrong content') |
| if str(a * 0) != '': |
| self.fail('repeated buffer zero times has wrong content') |
| if str(a + buffer('def')) != 'asdfdef': |
| self.fail('concatenation of buffers yields wrong content') |
| if str(buffer(a)) != 'asdf': |
| self.fail('composing buffers failed') |
| if str(buffer(a, 2)) != 'df': |
| self.fail('specifying buffer offset failed') |
| if str(buffer(a, 0, 2)) != 'as': |
| self.fail('specifying buffer size failed') |
| if str(buffer(a, 1, 2)) != 'sd': |
| self.fail('specifying buffer offset and size failed') |
| self.assertRaises(ValueError, buffer, buffer('asdf', 1), -1) |
| if str(buffer(buffer('asdf', 0, 2), 0)) != 'as': |
| self.fail('composing length-specified buffer failed') |
| if str(buffer(buffer('asdf', 0, 2), 0, 5000)) != 'as': |
| self.fail('composing length-specified buffer failed') |
| if str(buffer(buffer('asdf', 0, 2), 0, -1)) != 'as': |
| self.fail('composing length-specified buffer failed') |
| if str(buffer(buffer('asdf', 0, 2), 1, 2)) != 's': |
| self.fail('composing length-specified buffer failed') |
| |
| try: a[1] = 'g' |
| except TypeError: pass |
| else: self.fail("buffer assignment should raise TypeError") |
| |
| try: a[0:1] = 'g' |
| except TypeError: pass |
| else: self.fail("buffer slice assignment should raise TypeError") |
| |
| # array.array() returns an object that does not implement a char buffer, |
| # something which int() uses for conversion. |
| import array |
| try: int(buffer(array.array('c'))) |
| except TypeError: pass |
| else: self.fail("char buffer (at C level) not working") |
| |
| def test_main(): |
| run_unittest(TypesTests) |
| |
| if __name__ == '__main__': |
| test_main() |