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Issue #22604: Fix assertion error in debug mode when dividing a complex number by (nan+0j).

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This commit is contained in:
Antoine Pitrou 2014-10-10 23:49:32 +02:00
parent a13dab47cb
commit 9086f9260f
3 changed files with 16 additions and 4 deletions
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9
Lib/test/test_complex.py
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@ -27,7 +27,7 @@ class ComplexTest(unittest.TestCase):
unittest.TestCase.assertAlmostEqual(self, a, b)
def assertCloseAbs(self, x, y, eps=1e-9):
"""Return true iff floats x and y "are close\""""
"""Return true iff floats x and y "are close"."""
# put the one with larger magnitude second
if abs(x) > abs(y):
x, y = y, x
@ -62,7 +62,7 @@ class ComplexTest(unittest.TestCase):
self.fail(msg.format(x, y))
def assertClose(self, x, y, eps=1e-9):
"""Return true iff complexes x and y "are close\""""
"""Return true iff complexes x and y "are close"."""
self.assertCloseAbs(x.real, y.real, eps)
self.assertCloseAbs(x.imag, y.imag, eps)
@ -104,6 +104,11 @@ class ComplexTest(unittest.TestCase):
self.assertAlmostEqual(complex.__truediv__(2+0j, 1+1j), 1-1j)
self.assertRaises(ZeroDivisionError, complex.__truediv__, 1+1j, 0+0j)
for denom_real, denom_imag in [(0, NAN), (NAN, 0), (NAN, NAN)]:
z = complex(0, 0) / complex(denom_real, denom_imag)
self.assertTrue(isnan(z.real))
self.assertTrue(isnan(z.imag))
def test_floordiv(self):
self.assertRaises(TypeError, complex.__floordiv__, 3+0j, 1.5+0j)
self.assertRaises(TypeError, complex.__floordiv__, 3+0j, 0+0j)