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[3.11] gh-94808: improve test coverage of number formatting (GH-99472) #100483

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Dec 24, 2022
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[3.11] gh-94808: improve test coverage of number formatting (GH-99472) #100483

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44 changes: 39 additions & 5 deletions Lib/test/test_unicode.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1306,6 +1306,20 @@ def __repr__(self):
self.assertRaises(ValueError, ("{" + big + "}").format)
self.assertRaises(ValueError, ("{[" + big + "]}").format, [0])

# test number formatter errors:
self.assertRaises(ValueError, '{0:x}'.format, 1j)
self.assertRaises(ValueError, '{0:x}'.format, 1.0)
self.assertRaises(ValueError, '{0:X}'.format, 1j)
self.assertRaises(ValueError, '{0:X}'.format, 1.0)
self.assertRaises(ValueError, '{0:o}'.format, 1j)
self.assertRaises(ValueError, '{0:o}'.format, 1.0)
self.assertRaises(ValueError, '{0:u}'.format, 1j)
self.assertRaises(ValueError, '{0:u}'.format, 1.0)
self.assertRaises(ValueError, '{0:i}'.format, 1j)
self.assertRaises(ValueError, '{0:i}'.format, 1.0)
self.assertRaises(ValueError, '{0:d}'.format, 1j)
self.assertRaises(ValueError, '{0:d}'.format, 1.0)

# issue 6089
self.assertRaises(ValueError, "{0[0]x}".format, [None])
self.assertRaises(ValueError, "{0[0](10)}".format, [None])
Expand Down Expand Up @@ -1541,11 +1555,31 @@ def __int__(self):
self.assertEqual('%X' % letter_m, '6D')
self.assertEqual('%o' % letter_m, '155')
self.assertEqual('%c' % letter_m, 'm')
self.assertRaisesRegex(TypeError, '%x format: an integer is required, not float', operator.mod, '%x', 3.14),
self.assertRaisesRegex(TypeError, '%X format: an integer is required, not float', operator.mod, '%X', 2.11),
self.assertRaisesRegex(TypeError, '%o format: an integer is required, not float', operator.mod, '%o', 1.79),
self.assertRaisesRegex(TypeError, '%x format: an integer is required, not PseudoFloat', operator.mod, '%x', pi),
self.assertRaises(TypeError, operator.mod, '%c', pi),
self.assertRaisesRegex(TypeError, '%x format: an integer is required, not float', operator.mod, '%x', 3.14)
self.assertRaisesRegex(TypeError, '%X format: an integer is required, not float', operator.mod, '%X', 2.11)
self.assertRaisesRegex(TypeError, '%o format: an integer is required, not float', operator.mod, '%o', 1.79)
self.assertRaisesRegex(TypeError, '%x format: an integer is required, not PseudoFloat', operator.mod, '%x', pi)
self.assertRaisesRegex(TypeError, '%x format: an integer is required, not complex', operator.mod, '%x', 3j)
self.assertRaisesRegex(TypeError, '%X format: an integer is required, not complex', operator.mod, '%X', 2j)
self.assertRaisesRegex(TypeError, '%o format: an integer is required, not complex', operator.mod, '%o', 1j)
self.assertRaisesRegex(TypeError, '%u format: a real number is required, not complex', operator.mod, '%u', 3j)
self.assertRaisesRegex(TypeError, '%i format: a real number is required, not complex', operator.mod, '%i', 2j)
self.assertRaisesRegex(TypeError, '%d format: a real number is required, not complex', operator.mod, '%d', 1j)
self.assertRaisesRegex(TypeError, '%c requires int or char', operator.mod, '%c', pi)

class RaisingNumber:
def __int__(self):
raise RuntimeError('int') # should not be `TypeError`
def __index__(self):
raise RuntimeError('index') # should not be `TypeError`

rn = RaisingNumber()
self.assertRaisesRegex(RuntimeError, 'int', operator.mod, '%d', rn)
self.assertRaisesRegex(RuntimeError, 'int', operator.mod, '%i', rn)
self.assertRaisesRegex(RuntimeError, 'int', operator.mod, '%u', rn)
self.assertRaisesRegex(RuntimeError, 'index', operator.mod, '%x', rn)
self.assertRaisesRegex(RuntimeError, 'index', operator.mod, '%X', rn)
self.assertRaisesRegex(RuntimeError, 'index', operator.mod, '%o', rn)

def test_formatting_with_enum(self):
# issue18780
Expand Down