From 41b6794e1a359c317ed9f0f57629ebee87ae1eaf Mon Sep 17 00:00:00 2001 From: CPython developers <> Date: Fri, 31 Jan 2020 02:48:46 +0900 Subject: [PATCH 1/2] test_types.py from CPython v3.8.1 --- Lib/test/test_types.py | 1656 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1656 insertions(+) create mode 100644 Lib/test/test_types.py diff --git a/Lib/test/test_types.py b/Lib/test/test_types.py new file mode 100644 index 0000000000..56848c1bf8 --- /dev/null +++ b/Lib/test/test_types.py @@ -0,0 +1,1656 @@ +# Python test set -- part 6, built-in types + +from test.support import run_with_locale +import collections.abc +import inspect +import pickle +import locale +import sys +import types +import unittest.mock +import weakref + +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 0.0: 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 1.0: 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 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') + self.assertRaises(ValueError, float, '5_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 / 0 didn't raise ZeroDivisionError") + + try: 5 // 0 + except ZeroDivisionError: pass + else: self.fail("5 // 0 didn't raise ZeroDivisionError") + + try: 5 % 0 + except ZeroDivisionError: pass + else: self.fail("5 % 0 didn't raise ZeroDivisionError") + + def test_numeric_types(self): + if 0 != 0.0 or 1 != 1.0 or -1 != -1.0: + self.fail('int/float value not equal') + # calling built-in types without argument must return 0 + if int() != 0: self.fail('int() does not return 0') + 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 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.maxsize - 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 unified integral type + 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 int, not %r" % + (prod, type(prod))) + # Check for unified integral type + m = sys.maxsize + 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 int, not %r" % + (prod, type(prod))) + + x = sys.maxsize + self.assertIsInstance(x + 1, int, + "(sys.maxsize + 1) should have returned int") + self.assertIsInstance(-x - 1, int, + "(-sys.maxsize - 1) should have returned int") + self.assertIsInstance(-x - 2, int, + "(-sys.maxsize - 2) should have returned int") + + try: 5 << -5 + except ValueError: pass + else: self.fail('int negative shift <<') + + try: 5 >> -5 + except ValueError: pass + else: self.fail('int 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') + + def test_type_function(self): + self.assertRaises(TypeError, type, 1, 2) + self.assertRaises(TypeError, type, 1, 2, 3, 4) + + def test_int__format__(self): + def test(i, format_spec, result): + # just make sure we have the unified type for integers + assert type(i) == int + assert type(format_spec) == str + self.assertEqual(i.__format__(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') + + test(123, ',', '123') + test(-123, ',', '-123') + test(1234, ',', '1,234') + test(-1234, ',', '-1,234') + test(123456, ',', '123,456') + test(-123456, ',', '-123,456') + test(1234567, ',', '1,234,567') + test(-1234567, ',', '-1,234,567') + + # issue 5782, commas with no specifier type + test(1234, '010,', '00,001,234') + + # Unified type for integers + test(10**100, 'd', '1' + '0' * 100) + test(10**100+100, 'd', '1' + '0' * 97 + '100') + + # 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 'n' + self.assertRaises(ValueError, 3 .__format__, ",n") + # can't have ',' with 'c' + self.assertRaises(ValueError, 3 .__format__, ",c") + # 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') + + @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_string('%g', x, grouping=True), format(x, 'n')) + self.assertEqual(locale.format_string('%.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_string('%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): + def test(f, format_spec, result): + self.assertEqual(f.__format__(format_spec), result) + self.assertEqual(format(f, 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 <= 3.0 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') + + # 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 float formatting + test(1.0, '.0e', '1e+00') + test(1.0, '#.0e', '1.e+00') + test(1.0, '.0f', '1') + test(1.0, '#.0f', '1.') + test(1.1, 'g', '1.1') + test(1.1, '#g', '1.10000') + test(1.0, '.0%', '100%') + test(1.0, '#.0%', '100.%') + + # Issue 7094: Alternate formatting (specified by #) + test(1.0, '0e', '1.000000e+00') + test(1.0, '#0e', '1.000000e+00') + test(1.0, '0f', '1.000000' ) + test(1.0, '#0f', '1.000000') + test(1.0, '.1e', '1.0e+00') + test(1.0, '#.1e', '1.0e+00') + test(1.0, '.1f', '1.0') + test(1.0, '#.1f', '1.0') + test(1.0, '.1%', '100.0%') + test(1.0, '#.1%', '100.0%') + + # 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_slot_wrapper_types(self): + self.assertIsInstance(object.__init__, types.WrapperDescriptorType) + self.assertIsInstance(object.__str__, types.WrapperDescriptorType) + self.assertIsInstance(object.__lt__, types.WrapperDescriptorType) + self.assertIsInstance(int.__lt__, types.WrapperDescriptorType) + + def test_method_wrapper_types(self): + self.assertIsInstance(object().__init__, types.MethodWrapperType) + self.assertIsInstance(object().__str__, types.MethodWrapperType) + self.assertIsInstance(object().__lt__, types.MethodWrapperType) + self.assertIsInstance((42).__lt__, types.MethodWrapperType) + + def test_method_descriptor_types(self): + self.assertIsInstance(str.join, types.MethodDescriptorType) + self.assertIsInstance(list.append, types.MethodDescriptorType) + self.assertIsInstance(''.join, types.BuiltinMethodType) + self.assertIsInstance([].append, types.BuiltinMethodType) + + self.assertIsInstance(int.__dict__['from_bytes'], types.ClassMethodDescriptorType) + self.assertIsInstance(int.from_bytes, types.BuiltinMethodType) + self.assertIsInstance(int.__new__, types.BuiltinMethodType) + + +class MappingProxyTests(unittest.TestCase): + mappingproxy = types.MappingProxyType + + def test_constructor(self): + class userdict(dict): + pass + + mapping = {'x': 1, 'y': 2} + self.assertEqual(self.mappingproxy(mapping), mapping) + mapping = userdict(x=1, y=2) + self.assertEqual(self.mappingproxy(mapping), mapping) + mapping = collections.ChainMap({'x': 1}, {'y': 2}) + self.assertEqual(self.mappingproxy(mapping), mapping) + + self.assertRaises(TypeError, self.mappingproxy, 10) + self.assertRaises(TypeError, self.mappingproxy, ("a", "tuple")) + self.assertRaises(TypeError, self.mappingproxy, ["a", "list"]) + + def test_methods(self): + attrs = set(dir(self.mappingproxy({}))) - set(dir(object())) + self.assertEqual(attrs, { + '__contains__', + '__getitem__', + '__iter__', + '__len__', + 'copy', + 'get', + 'items', + 'keys', + 'values', + }) + + def test_get(self): + view = self.mappingproxy({'a': 'A', 'b': 'B'}) + self.assertEqual(view['a'], 'A') + self.assertEqual(view['b'], 'B') + self.assertRaises(KeyError, view.__getitem__, 'xxx') + self.assertEqual(view.get('a'), 'A') + self.assertIsNone(view.get('xxx')) + self.assertEqual(view.get('xxx', 42), 42) + + def test_missing(self): + class dictmissing(dict): + def __missing__(self, key): + return "missing=%s" % key + + view = self.mappingproxy(dictmissing(x=1)) + self.assertEqual(view['x'], 1) + self.assertEqual(view['y'], 'missing=y') + self.assertEqual(view.get('x'), 1) + self.assertEqual(view.get('y'), None) + self.assertEqual(view.get('y', 42), 42) + self.assertTrue('x' in view) + self.assertFalse('y' in view) + + def test_customdict(self): + class customdict(dict): + def __contains__(self, key): + if key == 'magic': + return True + else: + return dict.__contains__(self, key) + + def __iter__(self): + return iter(('iter',)) + + def __len__(self): + return 500 + + def copy(self): + return 'copy' + + def keys(self): + return 'keys' + + def items(self): + return 'items' + + def values(self): + return 'values' + + def __getitem__(self, key): + return "getitem=%s" % dict.__getitem__(self, key) + + def get(self, key, default=None): + return "get=%s" % dict.get(self, key, 'default=%r' % default) + + custom = customdict({'key': 'value'}) + view = self.mappingproxy(custom) + self.assertTrue('key' in view) + self.assertTrue('magic' in view) + self.assertFalse('xxx' in view) + self.assertEqual(view['key'], 'getitem=value') + self.assertRaises(KeyError, view.__getitem__, 'xxx') + self.assertEqual(tuple(view), ('iter',)) + self.assertEqual(len(view), 500) + self.assertEqual(view.copy(), 'copy') + self.assertEqual(view.get('key'), 'get=value') + self.assertEqual(view.get('xxx'), 'get=default=None') + self.assertEqual(view.items(), 'items') + self.assertEqual(view.keys(), 'keys') + self.assertEqual(view.values(), 'values') + + def test_chainmap(self): + d1 = {'x': 1} + d2 = {'y': 2} + mapping = collections.ChainMap(d1, d2) + view = self.mappingproxy(mapping) + self.assertTrue('x' in view) + self.assertTrue('y' in view) + self.assertFalse('z' in view) + self.assertEqual(view['x'], 1) + self.assertEqual(view['y'], 2) + self.assertRaises(KeyError, view.__getitem__, 'z') + self.assertEqual(tuple(sorted(view)), ('x', 'y')) + self.assertEqual(len(view), 2) + copy = view.copy() + self.assertIsNot(copy, mapping) + self.assertIsInstance(copy, collections.ChainMap) + self.assertEqual(copy, mapping) + self.assertEqual(view.get('x'), 1) + self.assertEqual(view.get('y'), 2) + self.assertIsNone(view.get('z')) + self.assertEqual(tuple(sorted(view.items())), (('x', 1), ('y', 2))) + self.assertEqual(tuple(sorted(view.keys())), ('x', 'y')) + self.assertEqual(tuple(sorted(view.values())), (1, 2)) + + def test_contains(self): + view = self.mappingproxy(dict.fromkeys('abc')) + self.assertTrue('a' in view) + self.assertTrue('b' in view) + self.assertTrue('c' in view) + self.assertFalse('xxx' in view) + + def test_views(self): + mapping = {} + view = self.mappingproxy(mapping) + keys = view.keys() + values = view.values() + items = view.items() + self.assertEqual(list(keys), []) + self.assertEqual(list(values), []) + self.assertEqual(list(items), []) + mapping['key'] = 'value' + self.assertEqual(list(keys), ['key']) + self.assertEqual(list(values), ['value']) + self.assertEqual(list(items), [('key', 'value')]) + + def test_len(self): + for expected in range(6): + data = dict.fromkeys('abcde'[:expected]) + self.assertEqual(len(data), expected) + view = self.mappingproxy(data) + self.assertEqual(len(view), expected) + + def test_iterators(self): + keys = ('x', 'y') + values = (1, 2) + items = tuple(zip(keys, values)) + view = self.mappingproxy(dict(items)) + self.assertEqual(set(view), set(keys)) + self.assertEqual(set(view.keys()), set(keys)) + self.assertEqual(set(view.values()), set(values)) + self.assertEqual(set(view.items()), set(items)) + + def test_copy(self): + original = {'key1': 27, 'key2': 51, 'key3': 93} + view = self.mappingproxy(original) + copy = view.copy() + self.assertEqual(type(copy), dict) + self.assertEqual(copy, original) + original['key1'] = 70 + self.assertEqual(view['key1'], 70) + self.assertEqual(copy['key1'], 27) + + +class ClassCreationTests(unittest.TestCase): + + class Meta(type): + def __init__(cls, name, bases, ns, **kw): + super().__init__(name, bases, ns) + @staticmethod + def __new__(mcls, name, bases, ns, **kw): + return super().__new__(mcls, name, bases, ns) + @classmethod + def __prepare__(mcls, name, bases, **kw): + ns = super().__prepare__(name, bases) + ns["y"] = 1 + ns.update(kw) + return ns + + def test_new_class_basics(self): + C = types.new_class("C") + self.assertEqual(C.__name__, "C") + self.assertEqual(C.__bases__, (object,)) + + def test_new_class_subclass(self): + C = types.new_class("C", (int,)) + self.assertTrue(issubclass(C, int)) + + def test_new_class_meta(self): + Meta = self.Meta + settings = {"metaclass": Meta, "z": 2} + # We do this twice to make sure the passed in dict isn't mutated + for i in range(2): + C = types.new_class("C" + str(i), (), settings) + self.assertIsInstance(C, Meta) + self.assertEqual(C.y, 1) + self.assertEqual(C.z, 2) + + def test_new_class_exec_body(self): + Meta = self.Meta + def func(ns): + ns["x"] = 0 + C = types.new_class("C", (), {"metaclass": Meta, "z": 2}, func) + self.assertIsInstance(C, Meta) + self.assertEqual(C.x, 0) + self.assertEqual(C.y, 1) + self.assertEqual(C.z, 2) + + def test_new_class_metaclass_keywords(self): + #Test that keywords are passed to the metaclass: + def meta_func(name, bases, ns, **kw): + return name, bases, ns, kw + res = types.new_class("X", + (int, object), + dict(metaclass=meta_func, x=0)) + self.assertEqual(res, ("X", (int, object), {}, {"x": 0})) + + def test_new_class_defaults(self): + # Test defaults/keywords: + C = types.new_class("C", (), {}, None) + self.assertEqual(C.__name__, "C") + self.assertEqual(C.__bases__, (object,)) + + def test_new_class_meta_with_base(self): + Meta = self.Meta + def func(ns): + ns["x"] = 0 + C = types.new_class(name="C", + bases=(int,), + kwds=dict(metaclass=Meta, z=2), + exec_body=func) + self.assertTrue(issubclass(C, int)) + self.assertIsInstance(C, Meta) + self.assertEqual(C.x, 0) + self.assertEqual(C.y, 1) + self.assertEqual(C.z, 2) + + def test_new_class_with_mro_entry(self): + class A: pass + class C: + def __mro_entries__(self, bases): + return (A,) + c = C() + D = types.new_class('D', (c,), {}) + self.assertEqual(D.__bases__, (A,)) + self.assertEqual(D.__orig_bases__, (c,)) + self.assertEqual(D.__mro__, (D, A, object)) + + def test_new_class_with_mro_entry_none(self): + class A: pass + class B: pass + class C: + def __mro_entries__(self, bases): + return () + c = C() + D = types.new_class('D', (A, c, B), {}) + self.assertEqual(D.__bases__, (A, B)) + self.assertEqual(D.__orig_bases__, (A, c, B)) + self.assertEqual(D.__mro__, (D, A, B, object)) + + def test_new_class_with_mro_entry_error(self): + class A: pass + class C: + def __mro_entries__(self, bases): + return A + c = C() + with self.assertRaises(TypeError): + types.new_class('D', (c,), {}) + + def test_new_class_with_mro_entry_multiple(self): + class A1: pass + class A2: pass + class B1: pass + class B2: pass + class A: + def __mro_entries__(self, bases): + return (A1, A2) + class B: + def __mro_entries__(self, bases): + return (B1, B2) + D = types.new_class('D', (A(), B()), {}) + self.assertEqual(D.__bases__, (A1, A2, B1, B2)) + + def test_new_class_with_mro_entry_multiple_2(self): + class A1: pass + class A2: pass + class A3: pass + class B1: pass + class B2: pass + class A: + def __mro_entries__(self, bases): + return (A1, A2, A3) + class B: + def __mro_entries__(self, bases): + return (B1, B2) + class C: pass + D = types.new_class('D', (A(), C, B()), {}) + self.assertEqual(D.__bases__, (A1, A2, A3, C, B1, B2)) + + # Many of the following tests are derived from test_descr.py + def test_prepare_class(self): + # Basic test of metaclass derivation + expected_ns = {} + class A(type): + def __new__(*args, **kwargs): + return type.__new__(*args, **kwargs) + + def __prepare__(*args): + return expected_ns + + B = types.new_class("B", (object,)) + C = types.new_class("C", (object,), {"metaclass": A}) + + # The most derived metaclass of D is A rather than type. + meta, ns, kwds = types.prepare_class("D", (B, C), {"metaclass": type}) + self.assertIs(meta, A) + self.assertIs(ns, expected_ns) + self.assertEqual(len(kwds), 0) + + def test_bad___prepare__(self): + # __prepare__() must return a mapping. + class BadMeta(type): + @classmethod + def __prepare__(*args): + return None + with self.assertRaisesRegex(TypeError, + r'^BadMeta\.__prepare__\(\) must ' + r'return a mapping, not NoneType$'): + class Foo(metaclass=BadMeta): + pass + # Also test the case in which the metaclass is not a type. + class BadMeta: + @classmethod + def __prepare__(*args): + return None + with self.assertRaisesRegex(TypeError, + r'^\.__prepare__\(\) must ' + r'return a mapping, not NoneType$'): + class Bar(metaclass=BadMeta()): + pass + + def test_resolve_bases(self): + class A: pass + class B: pass + class C: + def __mro_entries__(self, bases): + if A in bases: + return () + return (A,) + c = C() + self.assertEqual(types.resolve_bases(()), ()) + self.assertEqual(types.resolve_bases((c,)), (A,)) + self.assertEqual(types.resolve_bases((C,)), (C,)) + self.assertEqual(types.resolve_bases((A, C)), (A, C)) + self.assertEqual(types.resolve_bases((c, A)), (A,)) + self.assertEqual(types.resolve_bases((A, c)), (A,)) + x = (A,) + y = (C,) + z = (A, C) + t = (A, C, B) + for bases in [x, y, z, t]: + self.assertIs(types.resolve_bases(bases), bases) + + def test_metaclass_derivation(self): + # issue1294232: correct metaclass calculation + new_calls = [] # to check the order of __new__ calls + class AMeta(type): + def __new__(mcls, name, bases, ns): + new_calls.append('AMeta') + return super().__new__(mcls, name, bases, ns) + @classmethod + def __prepare__(mcls, name, bases): + return {} + + class BMeta(AMeta): + def __new__(mcls, name, bases, ns): + new_calls.append('BMeta') + return super().__new__(mcls, name, bases, ns) + @classmethod + def __prepare__(mcls, name, bases): + ns = super().__prepare__(name, bases) + ns['BMeta_was_here'] = True + return ns + + A = types.new_class("A", (), {"metaclass": AMeta}) + self.assertEqual(new_calls, ['AMeta']) + new_calls.clear() + + B = types.new_class("B", (), {"metaclass": BMeta}) + # BMeta.__new__ calls AMeta.__new__ with super: + self.assertEqual(new_calls, ['BMeta', 'AMeta']) + new_calls.clear() + + C = types.new_class("C", (A, B)) + # The most derived metaclass is BMeta: + self.assertEqual(new_calls, ['BMeta', 'AMeta']) + new_calls.clear() + # BMeta.__prepare__ should've been called: + self.assertIn('BMeta_was_here', C.__dict__) + + # The order of the bases shouldn't matter: + C2 = types.new_class("C2", (B, A)) + self.assertEqual(new_calls, ['BMeta', 'AMeta']) + new_calls.clear() + self.assertIn('BMeta_was_here', C2.__dict__) + + # Check correct metaclass calculation when a metaclass is declared: + D = types.new_class("D", (C,), {"metaclass": type}) + self.assertEqual(new_calls, ['BMeta', 'AMeta']) + new_calls.clear() + self.assertIn('BMeta_was_here', D.__dict__) + + E = types.new_class("E", (C,), {"metaclass": AMeta}) + self.assertEqual(new_calls, ['BMeta', 'AMeta']) + new_calls.clear() + self.assertIn('BMeta_was_here', E.__dict__) + + def test_metaclass_override_function(self): + # Special case: the given metaclass isn't a class, + # so there is no metaclass calculation. + class A(metaclass=self.Meta): + pass + + marker = object() + def func(*args, **kwargs): + return marker + + X = types.new_class("X", (), {"metaclass": func}) + Y = types.new_class("Y", (object,), {"metaclass": func}) + Z = types.new_class("Z", (A,), {"metaclass": func}) + self.assertIs(marker, X) + self.assertIs(marker, Y) + self.assertIs(marker, Z) + + def test_metaclass_override_callable(self): + # The given metaclass is a class, + # but not a descendant of type. + new_calls = [] # to check the order of __new__ calls + prepare_calls = [] # to track __prepare__ calls + class ANotMeta: + def __new__(mcls, *args, **kwargs): + new_calls.append('ANotMeta') + return super().__new__(mcls) + @classmethod + def __prepare__(mcls, name, bases): + prepare_calls.append('ANotMeta') + return {} + + class BNotMeta(ANotMeta): + def __new__(mcls, *args, **kwargs): + new_calls.append('BNotMeta') + return super().__new__(mcls) + @classmethod + def __prepare__(mcls, name, bases): + prepare_calls.append('BNotMeta') + return super().__prepare__(name, bases) + + A = types.new_class("A", (), {"metaclass": ANotMeta}) + self.assertIs(ANotMeta, type(A)) + self.assertEqual(prepare_calls, ['ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['ANotMeta']) + new_calls.clear() + + B = types.new_class("B", (), {"metaclass": BNotMeta}) + self.assertIs(BNotMeta, type(B)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + C = types.new_class("C", (A, B)) + self.assertIs(BNotMeta, type(C)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + C2 = types.new_class("C2", (B, A)) + self.assertIs(BNotMeta, type(C2)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + # This is a TypeError, because of a metaclass conflict: + # BNotMeta is neither a subclass, nor a superclass of type + with self.assertRaises(TypeError): + D = types.new_class("D", (C,), {"metaclass": type}) + + E = types.new_class("E", (C,), {"metaclass": ANotMeta}) + self.assertIs(BNotMeta, type(E)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + F = types.new_class("F", (object(), C)) + self.assertIs(BNotMeta, type(F)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + F2 = types.new_class("F2", (C, object())) + self.assertIs(BNotMeta, type(F2)) + self.assertEqual(prepare_calls, ['BNotMeta', 'ANotMeta']) + prepare_calls.clear() + self.assertEqual(new_calls, ['BNotMeta', 'ANotMeta']) + new_calls.clear() + + # TypeError: BNotMeta is neither a + # subclass, nor a superclass of int + with self.assertRaises(TypeError): + X = types.new_class("X", (C, int())) + with self.assertRaises(TypeError): + X = types.new_class("X", (int(), C)) + + def test_one_argument_type(self): + expected_message = 'type.__new__() takes exactly 3 arguments (1 given)' + + # Only type itself can use the one-argument form (#27157) + self.assertIs(type(5), int) + + class M(type): + pass + with self.assertRaises(TypeError) as cm: + M(5) + self.assertEqual(str(cm.exception), expected_message) + + class N(type, metaclass=M): + pass + with self.assertRaises(TypeError) as cm: + N(5) + self.assertEqual(str(cm.exception), expected_message) + + +class SimpleNamespaceTests(unittest.TestCase): + + def test_constructor(self): + ns1 = types.SimpleNamespace() + ns2 = types.SimpleNamespace(x=1, y=2) + ns3 = types.SimpleNamespace(**dict(x=1, y=2)) + + with self.assertRaises(TypeError): + types.SimpleNamespace(1, 2, 3) + with self.assertRaises(TypeError): + types.SimpleNamespace(**{1: 2}) + + self.assertEqual(len(ns1.__dict__), 0) + self.assertEqual(vars(ns1), {}) + self.assertEqual(len(ns2.__dict__), 2) + self.assertEqual(vars(ns2), {'y': 2, 'x': 1}) + self.assertEqual(len(ns3.__dict__), 2) + self.assertEqual(vars(ns3), {'y': 2, 'x': 1}) + + def test_unbound(self): + ns1 = vars(types.SimpleNamespace()) + ns2 = vars(types.SimpleNamespace(x=1, y=2)) + + self.assertEqual(ns1, {}) + self.assertEqual(ns2, {'y': 2, 'x': 1}) + + def test_underlying_dict(self): + ns1 = types.SimpleNamespace() + ns2 = types.SimpleNamespace(x=1, y=2) + ns3 = types.SimpleNamespace(a=True, b=False) + mapping = ns3.__dict__ + del ns3 + + self.assertEqual(ns1.__dict__, {}) + self.assertEqual(ns2.__dict__, {'y': 2, 'x': 1}) + self.assertEqual(mapping, dict(a=True, b=False)) + + def test_attrget(self): + ns = types.SimpleNamespace(x=1, y=2, w=3) + + self.assertEqual(ns.x, 1) + self.assertEqual(ns.y, 2) + self.assertEqual(ns.w, 3) + with self.assertRaises(AttributeError): + ns.z + + def test_attrset(self): + ns1 = types.SimpleNamespace() + ns2 = types.SimpleNamespace(x=1, y=2, w=3) + ns1.a = 'spam' + ns1.b = 'ham' + ns2.z = 4 + ns2.theta = None + + self.assertEqual(ns1.__dict__, dict(a='spam', b='ham')) + self.assertEqual(ns2.__dict__, dict(x=1, y=2, w=3, z=4, theta=None)) + + def test_attrdel(self): + ns1 = types.SimpleNamespace() + ns2 = types.SimpleNamespace(x=1, y=2, w=3) + + with self.assertRaises(AttributeError): + del ns1.spam + with self.assertRaises(AttributeError): + del ns2.spam + + del ns2.y + self.assertEqual(vars(ns2), dict(w=3, x=1)) + ns2.y = 'spam' + self.assertEqual(vars(ns2), dict(w=3, x=1, y='spam')) + del ns2.y + self.assertEqual(vars(ns2), dict(w=3, x=1)) + + ns1.spam = 5 + self.assertEqual(vars(ns1), dict(spam=5)) + del ns1.spam + self.assertEqual(vars(ns1), {}) + + def test_repr(self): + ns1 = types.SimpleNamespace(x=1, y=2, w=3) + ns2 = types.SimpleNamespace() + ns2.x = "spam" + ns2._y = 5 + name = "namespace" + + self.assertEqual(repr(ns1), "{name}(w=3, x=1, y=2)".format(name=name)) + self.assertEqual(repr(ns2), "{name}(_y=5, x='spam')".format(name=name)) + + def test_equal(self): + ns1 = types.SimpleNamespace(x=1) + ns2 = types.SimpleNamespace() + ns2.x = 1 + + self.assertEqual(types.SimpleNamespace(), types.SimpleNamespace()) + self.assertEqual(ns1, ns2) + self.assertNotEqual(ns2, types.SimpleNamespace()) + + def test_nested(self): + ns1 = types.SimpleNamespace(a=1, b=2) + ns2 = types.SimpleNamespace() + ns3 = types.SimpleNamespace(x=ns1) + ns2.spam = ns1 + ns2.ham = '?' + ns2.spam = ns3 + + self.assertEqual(vars(ns1), dict(a=1, b=2)) + self.assertEqual(vars(ns2), dict(spam=ns3, ham='?')) + self.assertEqual(ns2.spam, ns3) + self.assertEqual(vars(ns3), dict(x=ns1)) + self.assertEqual(ns3.x.a, 1) + + def test_recursive(self): + ns1 = types.SimpleNamespace(c='cookie') + ns2 = types.SimpleNamespace() + ns3 = types.SimpleNamespace(x=1) + ns1.spam = ns1 + ns2.spam = ns3 + ns3.spam = ns2 + + self.assertEqual(ns1.spam, ns1) + self.assertEqual(ns1.spam.spam, ns1) + self.assertEqual(ns1.spam.spam, ns1.spam) + self.assertEqual(ns2.spam, ns3) + self.assertEqual(ns3.spam, ns2) + self.assertEqual(ns2.spam.spam, ns2) + + def test_recursive_repr(self): + ns1 = types.SimpleNamespace(c='cookie') + ns2 = types.SimpleNamespace() + ns3 = types.SimpleNamespace(x=1) + ns1.spam = ns1 + ns2.spam = ns3 + ns3.spam = ns2 + name = "namespace" + repr1 = "{name}(c='cookie', spam={name}(...))".format(name=name) + repr2 = "{name}(spam={name}(spam={name}(...), x=1))".format(name=name) + + self.assertEqual(repr(ns1), repr1) + self.assertEqual(repr(ns2), repr2) + + def test_as_dict(self): + ns = types.SimpleNamespace(spam='spamspamspam') + + with self.assertRaises(TypeError): + len(ns) + with self.assertRaises(TypeError): + iter(ns) + with self.assertRaises(TypeError): + 'spam' in ns + with self.assertRaises(TypeError): + ns['spam'] + + def test_subclass(self): + class Spam(types.SimpleNamespace): + pass + + spam = Spam(ham=8, eggs=9) + + self.assertIs(type(spam), Spam) + self.assertEqual(vars(spam), {'ham': 8, 'eggs': 9}) + + def test_pickle(self): + ns = types.SimpleNamespace(breakfast="spam", lunch="spam") + + for protocol in range(pickle.HIGHEST_PROTOCOL + 1): + pname = "protocol {}".format(protocol) + try: + ns_pickled = pickle.dumps(ns, protocol) + except TypeError as e: + raise TypeError(pname) from e + ns_roundtrip = pickle.loads(ns_pickled) + + self.assertEqual(ns, ns_roundtrip, pname) + + def test_fake_namespace_compare(self): + # Issue #24257: Incorrect use of PyObject_IsInstance() caused + # SystemError. + class FakeSimpleNamespace(str): + __class__ = types.SimpleNamespace + self.assertFalse(types.SimpleNamespace() == FakeSimpleNamespace()) + self.assertTrue(types.SimpleNamespace() != FakeSimpleNamespace()) + with self.assertRaises(TypeError): + types.SimpleNamespace() < FakeSimpleNamespace() + with self.assertRaises(TypeError): + types.SimpleNamespace() <= FakeSimpleNamespace() + with self.assertRaises(TypeError): + types.SimpleNamespace() > FakeSimpleNamespace() + with self.assertRaises(TypeError): + types.SimpleNamespace() >= FakeSimpleNamespace() + + +class CoroutineTests(unittest.TestCase): + def test_wrong_args(self): + samples = [None, 1, object()] + for sample in samples: + with self.assertRaisesRegex(TypeError, + 'types.coroutine.*expects a callable'): + types.coroutine(sample) + + def test_non_gen_values(self): + @types.coroutine + def foo(): + return 'spam' + self.assertEqual(foo(), 'spam') + + class Awaitable: + def __await__(self): + return () + aw = Awaitable() + @types.coroutine + def foo(): + return aw + self.assertIs(aw, foo()) + + # decorate foo second time + foo = types.coroutine(foo) + self.assertIs(aw, foo()) + + def test_async_def(self): + # Test that types.coroutine passes 'async def' coroutines + # without modification + + async def foo(): pass + foo_code = foo.__code__ + foo_flags = foo.__code__.co_flags + decorated_foo = types.coroutine(foo) + self.assertIs(foo, decorated_foo) + self.assertEqual(foo.__code__.co_flags, foo_flags) + self.assertIs(decorated_foo.__code__, foo_code) + + foo_coro = foo() + def bar(): return foo_coro + for _ in range(2): + bar = types.coroutine(bar) + coro = bar() + self.assertIs(foo_coro, coro) + self.assertEqual(coro.cr_code.co_flags, foo_flags) + coro.close() + + def test_duck_coro(self): + class CoroLike: + def send(self): pass + def throw(self): pass + def close(self): pass + def __await__(self): return self + + coro = CoroLike() + @types.coroutine + def foo(): + return coro + self.assertIs(foo(), coro) + self.assertIs(foo().__await__(), coro) + + def test_duck_corogen(self): + class CoroGenLike: + def send(self): pass + def throw(self): pass + def close(self): pass + def __await__(self): return self + def __iter__(self): return self + def __next__(self): pass + + coro = CoroGenLike() + @types.coroutine + def foo(): + return coro + self.assertIs(foo(), coro) + self.assertIs(foo().__await__(), coro) + + def test_duck_gen(self): + class GenLike: + def send(self): pass + def throw(self): pass + def close(self): pass + def __iter__(self): pass + def __next__(self): pass + + # Setup generator mock object + gen = unittest.mock.MagicMock(GenLike) + gen.__iter__ = lambda gen: gen + gen.__name__ = 'gen' + gen.__qualname__ = 'test.gen' + self.assertIsInstance(gen, collections.abc.Generator) + self.assertIs(gen, iter(gen)) + + @types.coroutine + def foo(): return gen + + wrapper = foo() + self.assertIsInstance(wrapper, types._GeneratorWrapper) + self.assertIs(wrapper.__await__(), wrapper) + # Wrapper proxies duck generators completely: + self.assertIs(iter(wrapper), wrapper) + + self.assertIsInstance(wrapper, collections.abc.Coroutine) + self.assertIsInstance(wrapper, collections.abc.Awaitable) + + self.assertIs(wrapper.__qualname__, gen.__qualname__) + self.assertIs(wrapper.__name__, gen.__name__) + + # Test AttributeErrors + for name in {'gi_running', 'gi_frame', 'gi_code', 'gi_yieldfrom', + 'cr_running', 'cr_frame', 'cr_code', 'cr_await'}: + with self.assertRaises(AttributeError): + getattr(wrapper, name) + + # Test attributes pass-through + gen.gi_running = object() + gen.gi_frame = object() + gen.gi_code = object() + gen.gi_yieldfrom = object() + self.assertIs(wrapper.gi_running, gen.gi_running) + self.assertIs(wrapper.gi_frame, gen.gi_frame) + self.assertIs(wrapper.gi_code, gen.gi_code) + self.assertIs(wrapper.gi_yieldfrom, gen.gi_yieldfrom) + self.assertIs(wrapper.cr_running, gen.gi_running) + self.assertIs(wrapper.cr_frame, gen.gi_frame) + self.assertIs(wrapper.cr_code, gen.gi_code) + self.assertIs(wrapper.cr_await, gen.gi_yieldfrom) + + wrapper.close() + gen.close.assert_called_once_with() + + wrapper.send(1) + gen.send.assert_called_once_with(1) + gen.reset_mock() + + next(wrapper) + gen.__next__.assert_called_once_with() + gen.reset_mock() + + wrapper.throw(1, 2, 3) + gen.throw.assert_called_once_with(1, 2, 3) + gen.reset_mock() + + wrapper.throw(1, 2) + gen.throw.assert_called_once_with(1, 2) + gen.reset_mock() + + wrapper.throw(1) + gen.throw.assert_called_once_with(1) + gen.reset_mock() + + # Test exceptions propagation + error = Exception() + gen.throw.side_effect = error + try: + wrapper.throw(1) + except Exception as ex: + self.assertIs(ex, error) + else: + self.fail('wrapper did not propagate an exception') + + # Test invalid args + gen.reset_mock() + with self.assertRaises(TypeError): + wrapper.throw() + self.assertFalse(gen.throw.called) + with self.assertRaises(TypeError): + wrapper.close(1) + self.assertFalse(gen.close.called) + with self.assertRaises(TypeError): + wrapper.send() + self.assertFalse(gen.send.called) + + # Test that we do not double wrap + @types.coroutine + def bar(): return wrapper + self.assertIs(wrapper, bar()) + + # Test weakrefs support + ref = weakref.ref(wrapper) + self.assertIs(ref(), wrapper) + + def test_duck_functional_gen(self): + class Generator: + """Emulates the following generator (very clumsy): + + def gen(fut): + result = yield fut + return result * 2 + """ + def __init__(self, fut): + self._i = 0 + self._fut = fut + def __iter__(self): + return self + def __next__(self): + return self.send(None) + def send(self, v): + try: + if self._i == 0: + assert v is None + return self._fut + if self._i == 1: + raise StopIteration(v * 2) + if self._i > 1: + raise StopIteration + finally: + self._i += 1 + def throw(self, tp, *exc): + self._i = 100 + if tp is not GeneratorExit: + raise tp + def close(self): + self.throw(GeneratorExit) + + @types.coroutine + def foo(): return Generator('spam') + + wrapper = foo() + self.assertIsInstance(wrapper, types._GeneratorWrapper) + + async def corofunc(): + return await foo() + 100 + coro = corofunc() + + self.assertEqual(coro.send(None), 'spam') + try: + coro.send(20) + except StopIteration as ex: + self.assertEqual(ex.args[0], 140) + else: + self.fail('StopIteration was expected') + + def test_gen(self): + def gen_func(): + yield 1 + return (yield 2) + gen = gen_func() + @types.coroutine + def foo(): return gen + wrapper = foo() + self.assertIsInstance(wrapper, types._GeneratorWrapper) + self.assertIs(wrapper.__await__(), gen) + + for name in ('__name__', '__qualname__', 'gi_code', + 'gi_running', 'gi_frame'): + self.assertIs(getattr(foo(), name), + getattr(gen, name)) + self.assertIs(foo().cr_code, gen.gi_code) + + self.assertEqual(next(wrapper), 1) + self.assertEqual(wrapper.send(None), 2) + with self.assertRaisesRegex(StopIteration, 'spam'): + wrapper.send('spam') + + gen = gen_func() + wrapper = foo() + wrapper.send(None) + with self.assertRaisesRegex(Exception, 'ham'): + wrapper.throw(Exception, Exception('ham')) + + # decorate foo second time + foo = types.coroutine(foo) + self.assertIs(foo().__await__(), gen) + + def test_returning_itercoro(self): + @types.coroutine + def gen(): + yield + + gencoro = gen() + + @types.coroutine + def foo(): + return gencoro + + self.assertIs(foo(), gencoro) + + # decorate foo second time + foo = types.coroutine(foo) + self.assertIs(foo(), gencoro) + + def test_genfunc(self): + def gen(): yield + self.assertIs(types.coroutine(gen), gen) + self.assertIs(types.coroutine(types.coroutine(gen)), gen) + + self.assertTrue(gen.__code__.co_flags & inspect.CO_ITERABLE_COROUTINE) + self.assertFalse(gen.__code__.co_flags & inspect.CO_COROUTINE) + + g = gen() + self.assertTrue(g.gi_code.co_flags & inspect.CO_ITERABLE_COROUTINE) + self.assertFalse(g.gi_code.co_flags & inspect.CO_COROUTINE) + + self.assertIs(types.coroutine(gen), gen) + + def test_wrapper_object(self): + def gen(): + yield + @types.coroutine + def coro(): + return gen() + + wrapper = coro() + self.assertIn('GeneratorWrapper', repr(wrapper)) + self.assertEqual(repr(wrapper), str(wrapper)) + self.assertTrue(set(dir(wrapper)).issuperset({ + '__await__', '__iter__', '__next__', 'cr_code', 'cr_running', + 'cr_frame', 'gi_code', 'gi_frame', 'gi_running', 'send', + 'close', 'throw'})) + + +if __name__ == '__main__': + unittest.main() From 1b9ba7ccc7544088f397ec30061b2fbd32aba209 Mon Sep 17 00:00:00 2001 From: Jeong YunWon Date: Fri, 31 Jan 2020 03:25:17 +0900 Subject: [PATCH 2/2] mark failing tests of test_types.py --- Lib/test/test_types.py | 62 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/Lib/test/test_types.py b/Lib/test/test_types.py index 56848c1bf8..9e67067a70 100644 --- a/Lib/test/test_types.py +++ b/Lib/test/test_types.py @@ -86,6 +86,8 @@ def test_numeric_types(self): if float(1) == 1.0 and float(-1) == -1.0 and float(0) == 0.0: pass else: self.fail('float() does not work properly') + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_float_to_string(self): def test(f, result): self.assertEqual(f.__format__('e'), result) @@ -206,6 +208,8 @@ def test_type_function(self): self.assertRaises(TypeError, type, 1, 2) self.assertRaises(TypeError, type, 1, 2, 3, 4) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_int__format__(self): def test(i, format_spec, result): # just make sure we have the unified type for integers @@ -375,6 +379,8 @@ def test(i, format_spec, result): test(123456, "1=20", '11111111111111123456') test(123456, "*=20", '**************123456') + # TODO: RUSTPYTHON + @unittest.expectedFailure @run_with_locale('LC_NUMERIC', 'en_US.UTF8') def test_float__format__locale(self): # test locale support for __format__ code 'n' @@ -384,6 +390,8 @@ def test_float__format__locale(self): self.assertEqual(locale.format_string('%g', x, grouping=True), format(x, 'n')) self.assertEqual(locale.format_string('%.10g', x, grouping=True), format(x, '.10n')) + # TODO: RUSTPYTHON + @unittest.expectedFailure @run_with_locale('LC_NUMERIC', 'en_US.UTF8') def test_int__format__locale(self): # test locale support for __format__ code 'n' for integers @@ -403,6 +411,8 @@ def test_int__format__locale(self): self.assertEqual(len(format(0, lfmt)), len(format(x, lfmt))) self.assertEqual(len(format(0, cfmt)), len(format(x, cfmt))) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_float__format__(self): def test(f, format_spec, result): self.assertEqual(f.__format__(format_spec), result) @@ -553,6 +563,7 @@ def test(f, format_spec, result): test(12345.6, "1=20", '111111111111112345.6') test(12345.6, "*=20", '*************12345.6') + @unittest.skip("TODO: RUSTPYTHON") def test_format_spec_errors(self): # int, float, and string all share the same format spec # mini-language parser. @@ -572,6 +583,8 @@ def test_format_spec_errors(self): for code in 'xXobns': self.assertRaises(ValueError, format, 0, ',' + code) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_internal_sizes(self): self.assertGreater(object.__basicsize__, 0) self.assertGreater(tuple.__itemsize__, 0) @@ -588,6 +601,8 @@ def test_method_wrapper_types(self): self.assertIsInstance(object().__lt__, types.MethodWrapperType) self.assertIsInstance((42).__lt__, types.MethodWrapperType) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_method_descriptor_types(self): self.assertIsInstance(str.join, types.MethodDescriptorType) self.assertIsInstance(list.append, types.MethodDescriptorType) @@ -602,6 +617,8 @@ def test_method_descriptor_types(self): class MappingProxyTests(unittest.TestCase): mappingproxy = types.MappingProxyType + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_constructor(self): class userdict(dict): pass @@ -617,6 +634,8 @@ class userdict(dict): self.assertRaises(TypeError, self.mappingproxy, ("a", "tuple")) self.assertRaises(TypeError, self.mappingproxy, ["a", "list"]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_methods(self): attrs = set(dir(self.mappingproxy({}))) - set(dir(object())) self.assertEqual(attrs, { @@ -640,6 +659,8 @@ def test_get(self): self.assertIsNone(view.get('xxx')) self.assertEqual(view.get('xxx', 42), 42) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_missing(self): class dictmissing(dict): def __missing__(self, key): @@ -654,6 +675,8 @@ def __missing__(self, key): self.assertTrue('x' in view) self.assertFalse('y' in view) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_customdict(self): class customdict(dict): def __contains__(self, key): @@ -702,6 +725,8 @@ def get(self, key, default=None): self.assertEqual(view.keys(), 'keys') self.assertEqual(view.values(), 'values') + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_chainmap(self): d1 = {'x': 1} d2 = {'y': 2} @@ -747,6 +772,8 @@ def test_views(self): self.assertEqual(list(values), ['value']) self.assertEqual(list(items), [('key', 'value')]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_len(self): for expected in range(6): data = dict.fromkeys('abcde'[:expected]) @@ -764,6 +791,8 @@ def test_iterators(self): self.assertEqual(set(view.values()), set(values)) self.assertEqual(set(view.items()), set(items)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_copy(self): original = {'key1': 27, 'key2': 51, 'key3': 93} view = self.mappingproxy(original) @@ -799,6 +828,8 @@ def test_new_class_subclass(self): C = types.new_class("C", (int,)) self.assertTrue(issubclass(C, int)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_class_meta(self): Meta = self.Meta settings = {"metaclass": Meta, "z": 2} @@ -809,6 +840,8 @@ def test_new_class_meta(self): self.assertEqual(C.y, 1) self.assertEqual(C.z, 2) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_class_exec_body(self): Meta = self.Meta def func(ns): @@ -834,6 +867,8 @@ def test_new_class_defaults(self): self.assertEqual(C.__name__, "C") self.assertEqual(C.__bases__, (object,)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_class_meta_with_base(self): Meta = self.Meta def func(ns): @@ -930,6 +965,8 @@ def __prepare__(*args): self.assertIs(ns, expected_ns) self.assertEqual(len(kwds), 0) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_bad___prepare__(self): # __prepare__() must return a mapping. class BadMeta(type): @@ -974,6 +1011,8 @@ def __mro_entries__(self, bases): for bases in [x, y, z, t]: self.assertIs(types.resolve_bases(bases), bases) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_metaclass_derivation(self): # issue1294232: correct metaclass calculation new_calls = [] # to check the order of __new__ calls @@ -1028,6 +1067,8 @@ def __prepare__(mcls, name, bases): new_calls.clear() self.assertIn('BMeta_was_here', E.__dict__) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_metaclass_override_function(self): # Special case: the given metaclass isn't a class, # so there is no metaclass calculation. @@ -1129,6 +1170,8 @@ def __prepare__(mcls, name, bases): with self.assertRaises(TypeError): X = types.new_class("X", (int(), C)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_one_argument_type(self): expected_message = 'type.__new__() takes exactly 3 arguments (1 given)' @@ -1150,6 +1193,7 @@ class N(type, metaclass=M): class SimpleNamespaceTests(unittest.TestCase): + @unittest.skip("TODO: RUSTPYTHON") def test_constructor(self): ns1 = types.SimpleNamespace() ns2 = types.SimpleNamespace(x=1, y=2) @@ -1205,6 +1249,8 @@ def test_attrset(self): self.assertEqual(ns1.__dict__, dict(a='spam', b='ham')) self.assertEqual(ns2.__dict__, dict(x=1, y=2, w=3, z=4, theta=None)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_attrdel(self): ns1 = types.SimpleNamespace() ns2 = types.SimpleNamespace(x=1, y=2, w=3) @@ -1226,6 +1272,8 @@ def test_attrdel(self): del ns1.spam self.assertEqual(vars(ns1), {}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): ns1 = types.SimpleNamespace(x=1, y=2, w=3) ns2 = types.SimpleNamespace() @@ -1236,6 +1284,8 @@ def test_repr(self): self.assertEqual(repr(ns1), "{name}(w=3, x=1, y=2)".format(name=name)) self.assertEqual(repr(ns2), "{name}(_y=5, x='spam')".format(name=name)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_equal(self): ns1 = types.SimpleNamespace(x=1) ns2 = types.SimpleNamespace() @@ -1274,6 +1324,8 @@ def test_recursive(self): self.assertEqual(ns3.spam, ns2) self.assertEqual(ns2.spam.spam, ns2) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_recursive_repr(self): ns1 = types.SimpleNamespace(c='cookie') ns2 = types.SimpleNamespace() @@ -1309,6 +1361,8 @@ class Spam(types.SimpleNamespace): self.assertIs(type(spam), Spam) self.assertEqual(vars(spam), {'ham': 8, 'eggs': 9}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_pickle(self): ns = types.SimpleNamespace(breakfast="spam", lunch="spam") @@ -1366,6 +1420,8 @@ def foo(): foo = types.coroutine(foo) self.assertIs(aw, foo()) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_async_def(self): # Test that types.coroutine passes 'async def' coroutines # without modification @@ -1417,6 +1473,8 @@ def foo(): self.assertIs(foo(), coro) self.assertIs(foo().__await__(), coro) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_duck_gen(self): class GenLike: def send(self): pass @@ -1573,6 +1631,8 @@ async def corofunc(): else: self.fail('StopIteration was expected') + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_gen(self): def gen_func(): yield 1 @@ -1622,6 +1682,8 @@ def foo(): foo = types.coroutine(foo) self.assertIs(foo(), gencoro) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_genfunc(self): def gen(): yield self.assertIs(types.coroutine(gen), gen)