diff options
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_complex.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Lib/test/test_complex.py b/Lib/test/test_complex.py index c249ca7..cee4934 100644 --- a/Lib/test/test_complex.py +++ b/Lib/test/test_complex.py @@ -387,6 +387,29 @@ class ComplexTest(unittest.TestCase): self.assertAlmostEqual(complex(complex1(1j)), 2j) self.assertRaises(TypeError, complex, complex2(1j)) + @support.requires_IEEE_754 + def test_constructor_special_numbers(self): + class complex2(complex): + pass + for x in 0.0, -0.0, INF, -INF, NAN: + for y in 0.0, -0.0, INF, -INF, NAN: + with self.subTest(x=x, y=y): + z = complex(x, y) + self.assertFloatsAreIdentical(z.real, x) + self.assertFloatsAreIdentical(z.imag, y) + z = complex2(x, y) + self.assertIs(type(z), complex2) + self.assertFloatsAreIdentical(z.real, x) + self.assertFloatsAreIdentical(z.imag, y) + z = complex(complex2(x, y)) + self.assertIs(type(z), complex) + self.assertFloatsAreIdentical(z.real, x) + self.assertFloatsAreIdentical(z.imag, y) + z = complex2(complex(x, y)) + self.assertIs(type(z), complex2) + self.assertFloatsAreIdentical(z.real, x) + self.assertFloatsAreIdentical(z.imag, y) + def test_underscores(self): # check underscores for lit in VALID_UNDERSCORE_LITERALS: |