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