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#18663: document that assertAlmostEqual also works when the values are equal and add tests.

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Ezio Melotti 2013-08-11 13:04:50 +03:00
parent 7608b607b1
commit d51914c6c1
2 changed files with 5 additions and 1 deletions
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2
Doc/library/unittest.rst
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@ -1000,7 +1000,7 @@ Test cases
like the :func:`round` function) and not *significant digits*. like the :func:`round` function) and not *significant digits*.
If *delta* is supplied instead of *places* then the difference If *delta* is supplied instead of *places* then the difference
between *first* and *second* must be less (or more) than *delta*. between *first* and *second* must be less or equal to (or greater than) *delta*.
Supplying both *delta* and *places* raises a ``TypeError``. Supplying both *delta* and *places* raises a ``TypeError``.

4
Lib/unittest/test/test_assertions.py
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@ -34,6 +34,10 @@ class Test_Assertions(unittest.TestCase):
self.assertNotAlmostEqual(1.1, 1.0, delta=0.05) self.assertNotAlmostEqual(1.1, 1.0, delta=0.05)
self.assertNotAlmostEqual(1.0, 1.1, delta=0.05) self.assertNotAlmostEqual(1.0, 1.1, delta=0.05)
self.assertAlmostEqual(1.0, 1.0, delta=0.5)
self.assertRaises(self.failureException, self.assertNotAlmostEqual,
1.0, 1.0, delta=0.5)
self.assertRaises(self.failureException, self.assertAlmostEqual, self.assertRaises(self.failureException, self.assertAlmostEqual,
1.1, 1.0, delta=0.05) 1.1, 1.0, delta=0.05)
self.assertRaises(self.failureException, self.assertNotAlmostEqual, self.assertRaises(self.failureException, self.assertNotAlmostEqual,