2010-03-27 19:10:11 +00:00
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import datetime
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2010-03-25 23:56:33 +00:00
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import unittest
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class Test_Assertions(unittest.TestCase):
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def test_AlmostEqual(self):
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self.assertAlmostEqual(1.00000001, 1.0)
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self.assertNotAlmostEqual(1.0000001, 1.0)
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self.assertRaises(self.failureException,
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self.assertAlmostEqual, 1.0000001, 1.0)
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self.assertRaises(self.failureException,
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self.assertNotAlmostEqual, 1.00000001, 1.0)
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self.assertAlmostEqual(1.1, 1.0, places=0)
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self.assertRaises(self.failureException,
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self.assertAlmostEqual, 1.1, 1.0, places=1)
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self.assertAlmostEqual(0, .1+.1j, places=0)
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self.assertNotAlmostEqual(0, .1+.1j, places=1)
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self.assertRaises(self.failureException,
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self.assertAlmostEqual, 0, .1+.1j, places=1)
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self.assertRaises(self.failureException,
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self.assertNotAlmostEqual, 0, .1+.1j, places=0)
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self.assertAlmostEqual(float('inf'), float('inf'))
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self.assertRaises(self.failureException, self.assertNotAlmostEqual,
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float('inf'), float('inf'))
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2010-03-27 19:10:11 +00:00
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def test_AmostEqualWithDelta(self):
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self.assertAlmostEqual(1.1, 1.0, delta=0.5)
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self.assertAlmostEqual(1.0, 1.1, delta=0.5)
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self.assertNotAlmostEqual(1.1, 1.0, delta=0.05)
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self.assertNotAlmostEqual(1.0, 1.1, delta=0.05)
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self.assertRaises(self.failureException, self.assertAlmostEqual,
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1.1, 1.0, delta=0.05)
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self.assertRaises(self.failureException, self.assertNotAlmostEqual,
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1.1, 1.0, delta=0.5)
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self.assertRaises(TypeError, self.assertAlmostEqual,
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1.1, 1.0, places=2, delta=2)
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self.assertRaises(TypeError, self.assertNotAlmostEqual,
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1.1, 1.0, places=2, delta=2)
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first = datetime.datetime.now()
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second = first + datetime.timedelta(seconds=10)
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self.assertAlmostEqual(first, second,
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delta=datetime.timedelta(seconds=20))
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self.assertNotAlmostEqual(first, second,
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delta=datetime.timedelta(seconds=5))
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2010-03-25 23:56:33 +00:00
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def test_assertRaises(self):
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def _raise(e):
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raise e
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self.assertRaises(KeyError, _raise, KeyError)
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self.assertRaises(KeyError, _raise, KeyError("key"))
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try:
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self.assertRaises(KeyError, lambda: None)
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except self.failureException as e:
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self.assertIn("KeyError not raised", e.args)
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else:
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self.fail("assertRaises() didn't fail")
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try:
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self.assertRaises(KeyError, _raise, ValueError)
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except ValueError:
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pass
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else:
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self.fail("assertRaises() didn't let exception pass through")
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with self.assertRaises(KeyError) as cm:
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try:
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raise KeyError
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except Exception, e:
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raise
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self.assertIs(cm.exception, e)
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with self.assertRaises(KeyError):
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raise KeyError("key")
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try:
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with self.assertRaises(KeyError):
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pass
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except self.failureException as e:
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self.assertIn("KeyError not raised", e.args)
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else:
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self.fail("assertRaises() didn't fail")
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try:
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with self.assertRaises(KeyError):
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raise ValueError
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except ValueError:
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pass
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else:
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self.fail("assertRaises() didn't let exception pass through")
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2010-04-02 22:55:59 +00:00
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def testAssertNotRegexpMatches(self):
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self.assertNotRegexpMatches('Ala ma kota', r'r+')
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try:
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self.assertNotRegexpMatches('Ala ma kota', r'k.t', 'Message')
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except self.failureException, e:
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self.assertIn("'kot'", e.args[0])
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self.assertIn('Message', e.args[0])
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else:
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self.fail('assertNotRegexpMatches should have failed.')
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2010-03-25 23:56:33 +00:00
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class TestLongMessage(unittest.TestCase):
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"""Test that the individual asserts honour longMessage.
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This actually tests all the message behaviour for
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asserts that use longMessage."""
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def setUp(self):
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class TestableTestFalse(unittest.TestCase):
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longMessage = False
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failureException = self.failureException
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def testTest(self):
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pass
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class TestableTestTrue(unittest.TestCase):
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longMessage = True
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failureException = self.failureException
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def testTest(self):
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pass
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self.testableTrue = TestableTestTrue('testTest')
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self.testableFalse = TestableTestFalse('testTest')
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def testDefault(self):
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self.assertFalse(unittest.TestCase.longMessage)
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def test_formatMsg(self):
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self.assertEquals(self.testableFalse._formatMessage(None, "foo"), "foo")
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self.assertEquals(self.testableFalse._formatMessage("foo", "bar"), "foo")
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self.assertEquals(self.testableTrue._formatMessage(None, "foo"), "foo")
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self.assertEquals(self.testableTrue._formatMessage("foo", "bar"), "bar : foo")
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# This blows up if _formatMessage uses string concatenation
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self.testableTrue._formatMessage(object(), 'foo')
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def test_formatMessage_unicode_error(self):
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one = ''.join(chr(i) for i in range(255))
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# this used to cause a UnicodeDecodeError constructing msg
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self.testableTrue._formatMessage(one, u'\uFFFD')
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def assertMessages(self, methodName, args, errors):
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def getMethod(i):
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useTestableFalse = i < 2
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if useTestableFalse:
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test = self.testableFalse
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else:
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test = self.testableTrue
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return getattr(test, methodName)
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for i, expected_regexp in enumerate(errors):
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testMethod = getMethod(i)
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kwargs = {}
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withMsg = i % 2
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if withMsg:
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kwargs = {"msg": "oops"}
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with self.assertRaisesRegexp(self.failureException,
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expected_regexp=expected_regexp):
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testMethod(*args, **kwargs)
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def testAssertTrue(self):
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self.assertMessages('assertTrue', (False,),
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["^False is not True$", "^oops$", "^False is not True$",
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"^False is not True : oops$"])
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def testAssertFalse(self):
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self.assertMessages('assertFalse', (True,),
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["^True is not False$", "^oops$", "^True is not False$",
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"^True is not False : oops$"])
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def testNotEqual(self):
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self.assertMessages('assertNotEqual', (1, 1),
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["^1 == 1$", "^oops$", "^1 == 1$",
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"^1 == 1 : oops$"])
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def testAlmostEqual(self):
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self.assertMessages('assertAlmostEqual', (1, 2),
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["^1 != 2 within 7 places$", "^oops$",
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"^1 != 2 within 7 places$", "^1 != 2 within 7 places : oops$"])
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def testNotAlmostEqual(self):
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self.assertMessages('assertNotAlmostEqual', (1, 1),
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["^1 == 1 within 7 places$", "^oops$",
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"^1 == 1 within 7 places$", "^1 == 1 within 7 places : oops$"])
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def test_baseAssertEqual(self):
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self.assertMessages('_baseAssertEqual', (1, 2),
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["^1 != 2$", "^oops$", "^1 != 2$", "^1 != 2 : oops$"])
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def testAssertSequenceEqual(self):
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# Error messages are multiline so not testing on full message
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# assertTupleEqual and assertListEqual delegate to this method
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self.assertMessages('assertSequenceEqual', ([], [None]),
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["\+ \[None\]$", "^oops$", r"\+ \[None\]$",
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r"\+ \[None\] : oops$"])
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def testAssertSetEqual(self):
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self.assertMessages('assertSetEqual', (set(), set([None])),
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["None$", "^oops$", "None$",
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"None : oops$"])
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def testAssertIn(self):
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self.assertMessages('assertIn', (None, []),
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['^None not found in \[\]$', "^oops$",
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'^None not found in \[\]$',
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'^None not found in \[\] : oops$'])
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def testAssertNotIn(self):
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self.assertMessages('assertNotIn', (None, [None]),
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['^None unexpectedly found in \[None\]$', "^oops$",
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'^None unexpectedly found in \[None\]$',
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'^None unexpectedly found in \[None\] : oops$'])
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def testAssertDictEqual(self):
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self.assertMessages('assertDictEqual', ({}, {'key': 'value'}),
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[r"\+ \{'key': 'value'\}$", "^oops$",
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"\+ \{'key': 'value'\}$",
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"\+ \{'key': 'value'\} : oops$"])
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def testAssertDictContainsSubset(self):
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self.assertMessages('assertDictContainsSubset', ({'key': 'value'}, {}),
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["^Missing: 'key'$", "^oops$",
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"^Missing: 'key'$",
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"^Missing: 'key' : oops$"])
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def testAssertItemsEqual(self):
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self.assertMessages('assertItemsEqual', ([], [None]),
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[r"\[None\]$", "^oops$",
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r"\[None\]$",
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r"\[None\] : oops$"])
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def testAssertMultiLineEqual(self):
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self.assertMessages('assertMultiLineEqual', ("", "foo"),
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[r"\+ foo$", "^oops$",
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r"\+ foo$",
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r"\+ foo : oops$"])
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def testAssertLess(self):
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self.assertMessages('assertLess', (2, 1),
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["^2 not less than 1$", "^oops$",
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"^2 not less than 1$", "^2 not less than 1 : oops$"])
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def testAssertLessEqual(self):
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self.assertMessages('assertLessEqual', (2, 1),
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["^2 not less than or equal to 1$", "^oops$",
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"^2 not less than or equal to 1$",
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"^2 not less than or equal to 1 : oops$"])
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def testAssertGreater(self):
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self.assertMessages('assertGreater', (1, 2),
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["^1 not greater than 2$", "^oops$",
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"^1 not greater than 2$",
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"^1 not greater than 2 : oops$"])
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def testAssertGreaterEqual(self):
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self.assertMessages('assertGreaterEqual', (1, 2),
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["^1 not greater than or equal to 2$", "^oops$",
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"^1 not greater than or equal to 2$",
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"^1 not greater than or equal to 2 : oops$"])
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def testAssertIsNone(self):
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self.assertMessages('assertIsNone', ('not None',),
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["^'not None' is not None$", "^oops$",
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"^'not None' is not None$",
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"^'not None' is not None : oops$"])
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def testAssertIsNotNone(self):
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self.assertMessages('assertIsNotNone', (None,),
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["^unexpectedly None$", "^oops$",
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"^unexpectedly None$",
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"^unexpectedly None : oops$"])
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def testAssertIs(self):
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self.assertMessages('assertIs', (None, 'foo'),
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["^None is not 'foo'$", "^oops$",
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"^None is not 'foo'$",
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"^None is not 'foo' : oops$"])
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def testAssertIsNot(self):
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self.assertMessages('assertIsNot', (None, None),
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["^unexpectedly identical: None$", "^oops$",
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"^unexpectedly identical: None$",
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"^unexpectedly identical: None : oops$"])
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if __name__ == '__main__':
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unittest.main()
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