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✏️ test_types.py
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# Python test set -- part 6, built-in types from test.test_support import run_unittest, have_unicode, run_with_locale, \ check_py3k_warnings import unittest import sys import locale 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 0L: 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 1L: 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 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 0L < 1L <= 1L == 1L >= 1L > 0L != 1L: 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 / 0L except ZeroDivisionError: pass else: self.fail("5 / 0L didn't raise ZeroDivisionError") try: 5 // 0L except ZeroDivisionError: pass else: self.fail("5 // 0L didn't raise ZeroDivisionError") try: 5 % 0L except ZeroDivisionError: pass else: self.fail("5 % 0L didn't raise ZeroDivisionError") def test_numeric_types(self): if 0 != 0L or 0 != 0.0 or 0L != 0.0: self.fail('mixed comparisons') if 1 != 1L or 1 != 1.0 or 1L != 1.0: self.fail('mixed comparisons') if -1 != -1L or -1 != -1.0 or -1L != -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 long() != 0L: 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 long(1.9) == 1L == long(1.1) and long(-1.1) == -1L == long(-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_float_to_string(self): def test(f, result): self.assertEqual(f.__format__('e'), result) self.assertEqual('%e' % f, result) # test all 2 digit exponents, both with __format__ and with # '%' formatting for i in range(-99, 100): test(float('1.5e'+str(i)), '1.500000e{0:+03d}'.format(i)) # test some 3 digit exponents self.assertEqual(1.5e100.__format__('e'), '1.500000e+100') self.assertEqual('%e' % 1.5e100, '1.500000e+100') self.assertEqual(1.5e101.__format__('e'), '1.500000e+101') self.assertEqual('%e' % 1.5e101, '1.500000e+101') self.assertEqual(1.5e-100.__format__('e'), '1.500000e-100') self.assertEqual('%e' % 1.5e-100, '1.500000e-100') self.assertEqual(1.5e-101.__format__('e'), '1.500000e-101') self.assertEqual('%e' % 1.5e-101, '1.500000e-101') self.assertEqual('%g' % 1.0, '1') self.assertEqual('%#g' % 1.0, '1.00000') 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 long: 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 long: self.fail("expected type(%r) to be long, not %r" % (prod, type(prod))) def test_long_integers(self): if 12L + 24L != 36L: self.fail('long op') if 12L + (-24L) != -12L: self.fail('long op') if (-12L) + 24L != 12L: self.fail('long op') if (-12L) + (-24L) != -36L: self.fail('long op') if not 12L < 24L: self.fail('long op') if not -24L < -12L: self.fail('long op') x = sys.maxint if int(long(x)) != x: self.fail('long op') try: y = int(long(x)+1L) except OverflowError: self.fail('long op') if not isinstance(y, long): self.fail('long op') x = -x if int(long(x)) != x: self.fail('long op') x = x-1 if int(long(x)) != x: self.fail('long op') try: y = int(long(x)-1L) except OverflowError: self.fail('long op') if not isinstance(y, long): self.fail('long op') try: 5 << -5 except ValueError: pass else: self.fail('int negative shift <<') try: 5L << -5L except ValueError: pass else: self.fail('long negative shift <<') try: 5 >> -5 except ValueError: pass else: self.fail('int negative shift >>') try: 5L >> -5L 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[-100L:100L:2L], '02468') if have_unicode: a = unicode('0123456789', 'ascii') self.assertEqual(a[::], a) self.assertEqual(a[::2], unicode('02468', 'ascii')) self.assertEqual(a[1::2], unicode('13579', 'ascii')) self.assertEqual(a[::-1], unicode('9876543210', 'ascii')) self.assertEqual(a[::-2], unicode('97531', 'ascii')) self.assertEqual(a[3::-2], unicode('31', 'ascii')) self.assertEqual(a[-100:100:], a) self.assertEqual(a[100:-100:-1], a[::-1]) self.assertEqual(a[-100L:100L:2L], unicode('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) cmp(buffer("abc"), buffer("def")) # used to raise a warning: tp_compare didn't return -1, 0, or 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_int__format__(self): def test(i, format_spec, result): # just make sure I'm not accidentally checking longs assert type(i) == int assert type(format_spec) == str self.assertEqual(i.__format__(format_spec), result) self.assertEqual(i.__format__(unicode(format_spec)), result) test(123456789, 'd', '123456789') test(123456789, 'd', '123456789') test(1, 'c', '\01') # sign and aligning are interdependent test(1, "-", '1') test(-1, "-", '-1') test(1, "-3", ' 1') test(-1, "-3", ' -1') test(1, "+3", ' +1') test(-1, "+3", ' -1') test(1, " 3", ' 1') test(-1, " 3", ' -1') test(1, " ", ' 1') test(-1, " ", '-1') # hex test(3, "x", "3") test(3, "X", "3") test(1234, "x", "4d2") test(-1234, "x", "-4d2") test(1234, "8x", " 4d2") test(-1234, "8x", " -4d2") test(1234, "x", "4d2") test(-1234, "x", "-4d2") test(-3, "x", "-3") test(-3, "X", "-3") test(int('be', 16), "x", "be") test(int('be', 16), "X", "BE") test(-int('be', 16), "x", "-be") test(-int('be', 16), "X", "-BE") # octal test(3, "o", "3") test(-3, "o", "-3") test(65, "o", "101") test(-65, "o", "-101") test(1234, "o", "2322") test(-1234, "o", "-2322") test(1234, "-o", "2322") test(-1234, "-o", "-2322") test(1234, " o", " 2322") test(-1234, " o", "-2322") test(1234, "+o", "+2322") test(-1234, "+o", "-2322") # binary test(3, "b", "11") test(-3, "b", "-11") test(1234, "b", "10011010010") test(-1234, "b", "-10011010010") test(1234, "-b", "10011010010") test(-1234, "-b", "-10011010010") test(1234, " b", " 10011010010") test(-1234, " b", "-10011010010") test(1234, "+b", "+10011010010") test(-1234, "+b", "-10011010010") # alternate (#) formatting test(0, "#b", '0b0') test(0, "-#b", '0b0') test(1, "-#b", '0b1') test(-1, "-#b", '-0b1') test(-1, "-#5b", ' -0b1') test(1, "+#5b", ' +0b1') test(100, "+#b", '+0b1100100') test(100, "#012b", '0b0001100100') test(-100, "#012b", '-0b001100100') test(0, "#o", '0o0') test(0, "-#o", '0o0') test(1, "-#o", '0o1') test(-1, "-#o", '-0o1') test(-1, "-#5o", ' -0o1') test(1, "+#5o", ' +0o1') test(100, "+#o", '+0o144') test(100, "#012o", '0o0000000144') test(-100, "#012o", '-0o000000144') test(0, "#x", '0x0') test(0, "-#x", '0x0') test(1, "-#x", '0x1') test(-1, "-#x", '-0x1') test(-1, "-#5x", ' -0x1') test(1, "+#5x", ' +0x1') test(100, "+#x", '+0x64') test(100, "#012x", '0x0000000064') test(-100, "#012x", '-0x000000064') test(123456, "#012x", '0x000001e240') test(-123456, "#012x", '-0x00001e240') test(0, "#X", '0X0') test(0, "-#X", '0X0') test(1, "-#X", '0X1') test(-1, "-#X", '-0X1') test(-1, "-#5X", ' -0X1') test(1, "+#5X", ' +0X1') test(100, "+#X", '+0X64') test(100, "#012X", '0X0000000064') test(-100, "#012X", '-0X000000064') test(123456, "#012X", '0X000001E240') test(-123456, "#012X", '-0X00001E240') # issue 5782, commas with no specifier type test(1234, '010,', '00,001,234') # make sure these are errors # precision disallowed self.assertRaises(ValueError, 3 .__format__, "1.3") # sign not allowed with 'c' self.assertRaises(ValueError, 3 .__format__, "+c") # format spec must be string self.assertRaises(TypeError, 3 .__format__, None) self.assertRaises(TypeError, 3 .__format__, 0) # can't have ',' with 'c' self.assertRaises(ValueError, 3 .__format__, ",c") # ensure that only int and float type specifiers work for format_spec in ([chr(x) for x in range(ord('a'), ord('z')+1)] + [chr(x) for x in range(ord('A'), ord('Z')+1)]): if not format_spec in 'bcdoxXeEfFgGn%': self.assertRaises(ValueError, 0 .__format__, format_spec) self.assertRaises(ValueError, 1 .__format__, format_spec) self.assertRaises(ValueError, (-1) .__format__, format_spec) # ensure that float type specifiers work; format converts # the int to a float for format_spec in 'eEfFgG%': for value in [0, 1, -1, 100, -100, 1234567890, -1234567890]: self.assertEqual(value.__format__(format_spec), float(value).__format__(format_spec)) # Issue 6902 test(123456, "0<20", '12345600000000000000') test(123456, "1<20", '12345611111111111111') test(123456, "*<20", '123456**************') test(123456, "0>20", '00000000000000123456') test(123456, "1>20", '11111111111111123456') test(123456, "*>20", '**************123456') test(123456, "0=20", '00000000000000123456') test(123456, "1=20", '11111111111111123456') test(123456, "*=20", '**************123456') def test_long__format__(self): def test(i, format_spec, result): # make sure we're not accidentally checking ints assert type(i) == long assert type(format_spec) == str self.assertEqual(i.__format__(format_spec), result) self.assertEqual(i.__format__(unicode(format_spec)), result) test(10**100, 'd', '1' + '0' * 100) test(10**100+100, 'd', '1' + '0' * 97 + '100') test(123456789L, 'd', '123456789') test(123456789L, 'd', '123456789') # sign and aligning are interdependent test(1L, "-", '1') test(-1L, "-", '-1') test(1L, "-3", ' 1') test(-1L, "-3", ' -1') test(1L, "+3", ' +1') test(-1L, "+3", ' -1') test(1L, " 3", ' 1') test(-1L, " 3", ' -1') test(1L, " ", ' 1') test(-1L, " ", '-1') test(1L, 'c', '\01') # hex test(3L, "x", "3") test(3L, "X", "3") test(1234L, "x", "4d2") test(-1234L, "x", "-4d2") test(1234L, "8x", " 4d2") test(-1234L, "8x", " -4d2") test(1234L, "x", "4d2") test(-1234L, "x", "-4d2") test(-3L, "x", "-3") test(-3L, "X", "-3") test(long('be', 16), "x", "be") test(long('be', 16), "X", "BE") test(-long('be', 16), "x", "-be") test(-long('be', 16), "X", "-BE") # octal test(3L, "o", "3") test(-3L, "o", "-3") test(65L, "o", "101") test(-65L, "o", "-101") test(1234L, "o", "2322") test(-1234L, "o", "-2322") test(1234L, "-o", "2322") test(-1234L, "-o", "-2322") test(1234L, " o", " 2322") test(-1234L, " o", "-2322") test(1234L, "+o", "+2322") test(-1234L, "+o", "-2322") # binary test(3L, "b", "11") test(-3L, "b", "-11") test(1234L, "b", "10011010010") test(-1234L, "b", "-10011010010") test(1234L, "-b", "10011010010") test(-1234L, "-b", "-10011010010") test(1234L, " b", " 10011010010") test(-1234L, " b", "-10011010010") test(1234L, "+b", "+10011010010") test(-1234L, "+b", "-10011010010") # make sure these are errors # precision disallowed self.assertRaises(ValueError, 3L .__format__, "1.3") # sign not allowed with 'c' self.assertRaises(ValueError, 3L .__format__, "+c") # format spec must be string self.assertRaises(TypeError, 3L .__format__, None) self.assertRaises(TypeError, 3L .__format__, 0) # alternate specifier in wrong place self.assertRaises(ValueError, 1L .__format__, "#+5x") self.assertRaises(ValueError, 1L .__format__, "+5#x") # ensure that only int and float type specifiers work for format_spec in ([chr(x) for x in range(ord('a'), ord('z')+1)] + [chr(x) for x in range(ord('A'), ord('Z')+1)]): if not format_spec in 'bcdoxXeEfFgGn%': self.assertRaises(ValueError, 0L .__format__, format_spec) self.assertRaises(ValueError, 1L .__format__, format_spec) self.assertRaises(ValueError, (-1L) .__format__, format_spec) # ensure that float type specifiers work; format converts # the long to a float for format_spec in 'eEfFgG%': for value in [0L, 1L, -1L, 100L, -100L, 1234567890L, -1234567890L]: self.assertEqual(value.__format__(format_spec), float(value).__format__(format_spec)) # Issue 6902 test(123456L, "0<20", '12345600000000000000') test(123456L, "1<20", '12345611111111111111') test(123456L, "*<20", '123456**************') test(123456L, "0>20", '00000000000000123456') test(123456L, "1>20", '11111111111111123456') test(123456L, "*>20", '**************123456') test(123456L, "0=20", '00000000000000123456') test(123456L, "1=20", '11111111111111123456') test(123456L, "*=20", '**************123456') @run_with_locale('LC_NUMERIC', 'en_US.UTF8') def test_float__format__locale(self): # test locale support for __format__ code 'n' for i in range(-10, 10): x = 1234567890.0 * (10.0 ** i) self.assertEqual(locale.format('%g', x, grouping=True), format(x, 'n')) self.assertEqual(locale.format('%.10g', x, grouping=True), format(x, '.10n')) @run_with_locale('LC_NUMERIC', 'en_US.UTF8') def test_int__format__locale(self): # test locale support for __format__ code 'n' for integers x = 123456789012345678901234567890 for i in range(0, 30): self.assertEqual(locale.format('%d', x, grouping=True), format(x, 'n')) # move to the next integer to test x = x // 10 rfmt = ">20n" lfmt = "<20n" cfmt = "^20n" for x in (1234, 12345, 123456, 1234567, 12345678, 123456789, 1234567890, 12345678900): self.assertEqual(len(format(0, rfmt)), len(format(x, rfmt))) self.assertEqual(len(format(0, lfmt)), len(format(x, lfmt))) self.assertEqual(len(format(0, cfmt)), len(format(x, cfmt))) def test_float__format__(self): # these should be rewritten to use both format(x, spec) and # x.__format__(spec) def test(f, format_spec, result): assert type(f) == float assert type(format_spec) == str self.assertEqual(f.__format__(format_spec), result) self.assertEqual(f.__format__(unicode(format_spec)), result) test(0.0, 'f', '0.000000') # the default is 'g', except for empty format spec test(0.0, '', '0.0') test(0.01, '', '0.01') test(0.01, 'g', '0.01') # test for issue 3411 test(1.23, '1', '1.23') test(-1.23, '1', '-1.23') test(1.23, '1g', '1.23') test(-1.23, '1g', '-1.23') test( 1.0, ' g', ' 1') test(-1.0, ' g', '-1') test( 1.0, '+g', '+1') test(-1.0, '+g', '-1') test(1.1234e200, 'g', '1.1234e+200') test(1.1234e200, 'G', '1.1234E+200') test(1.0, 'f', '1.000000') test(-1.0, 'f', '-1.000000') test( 1.0, ' f', ' 1.000000') test(-1.0, ' f', '-1.000000') test( 1.0, '+f', '+1.000000') test(-1.0, '+f', '-1.000000') # Python versions <= 2.6 switched from 'f' to 'g' formatting for # values larger than 1e50. No longer. f = 1.1234e90 for fmt in 'f', 'F': # don't do a direct equality check, since on some # platforms only the first few digits of dtoa # will be reliable result = f.__format__(fmt) self.assertEqual(len(result), 98) self.assertEqual(result[-7], '.') self.assertIn(result[:12], ('112340000000', '112339999999')) f = 1.1234e200 for fmt in 'f', 'F': result = f.__format__(fmt) self.assertEqual(len(result), 208) self.assertEqual(result[-7], '.') self.assertIn(result[:12], ('112340000000', '112339999999')) test( 1.0, 'e', '1.000000e+00') test(-1.0, 'e', '-1.000000e+00') test( 1.0, 'E', '1.000000E+00') test(-1.0, 'E', '-1.000000E+00') test(1.1234e20, 'e', '1.123400e+20') test(1.1234e20, 'E', '1.123400E+20') # No format code means use g, but must have a decimal # and a number after the decimal. This is tricky, because # a totaly empty format specifier means something else. # So, just use a sign flag test(1e200, '+g', '+1e+200') test(1e200, '+', '+1e+200') test(1.1e200, '+g', '+1.1e+200') test(1.1e200, '+', '+1.1e+200') test(1.1e200, '+g', '+1.1e+200') test(1.1e200, '+', '+1.1e+200') # 0 padding test(1234., '010f', '1234.000000') test(1234., '011f', '1234.000000') test(1234., '012f', '01234.000000') test(-1234., '011f', '-1234.000000') test(-1234., '012f', '-1234.000000') test(-1234., '013f', '-01234.000000') test(-1234.12341234, '013f', '-01234.123412') test(-123456.12341234, '011.2f', '-0123456.12') # issue 5782, commas with no specifier type test(1.2, '010,.2', '0,000,001.2') # 0 padding with commas test(1234., '011,f', '1,234.000000') test(1234., '012,f', '1,234.000000') test(1234., '013,f', '01,234.000000') test(-1234., '012,f', '-1,234.000000') test(-1234., '013,f', '-1,234.000000') test(-1234., '014,f', '-01,234.000000') test(-12345., '015,f', '-012,345.000000') test(-123456., '016,f', '-0,123,456.000000') test(-123456., '017,f', '-0,123,456.000000') test(-123456.12341234, '017,f', '-0,123,456.123412') test(-123456.12341234, '013,.2f', '-0,123,456.12') # % formatting test(-1.0, '%', '-100.000000%') # format spec must be string self.assertRaises(TypeError, 3.0.__format__, None) self.assertRaises(TypeError, 3.0.__format__, 0) # other format specifiers shouldn't work on floats, # in particular int specifiers for format_spec in ([chr(x) for x in range(ord('a'), ord('z')+1)] + [chr(x) for x in range(ord('A'), ord('Z')+1)]): if not format_spec in 'eEfFgGn%': self.assertRaises(ValueError, format, 0.0, format_spec) self.assertRaises(ValueError, format, 1.0, format_spec) self.assertRaises(ValueError, format, -1.0, format_spec) self.assertRaises(ValueError, format, 1e100, format_spec) self.assertRaises(ValueError, format, -1e100, format_spec) self.assertRaises(ValueError, format, 1e-100, format_spec) self.assertRaises(ValueError, format, -1e-100, format_spec) # Alternate formatting is not supported self.assertRaises(ValueError, format, 0.0, '#') self.assertRaises(ValueError, format, 0.0, '#20f') # Issue 6902 test(12345.6, "0<20", '12345.60000000000000') test(12345.6, "1<20", '12345.61111111111111') test(12345.6, "*<20", '12345.6*************') test(12345.6, "0>20", '000000000000012345.6') test(12345.6, "1>20", '111111111111112345.6') test(12345.6, "*>20", '*************12345.6') test(12345.6, "0=20", '000000000000012345.6') test(12345.6, "1=20", '111111111111112345.6') test(12345.6, "*=20", '*************12345.6') def test_format_spec_errors(self): # int, float, and string all share the same format spec # mini-language parser. # Check that we can't ask for too many digits. This is # probably a CPython specific test. It tries to put the width # into a C long. self.assertRaises(ValueError, format, 0, '1'*10000 + 'd') # Similar with the precision. self.assertRaises(ValueError, format, 0, '.' + '1'*10000 + 'd') # And may as well test both. self.assertRaises(ValueError, format, 0, '1'*1000 + '.' + '1'*10000 + 'd') # Make sure commas aren't allowed with various type codes for code in 'xXobns': self.assertRaises(ValueError, format, 0, ',' + code) def test_internal_sizes(self): self.assertGreater(object.__basicsize__, 0) self.assertGreater(tuple.__itemsize__, 0) def test_main(): with check_py3k_warnings( ("buffer.. not supported", DeprecationWarning), ("classic long division", DeprecationWarning)): run_unittest(TypesTests) if __name__ == '__main__': test_main()
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