parts/django/tests/regressiontests/test_runner/tests.py
author Nishanth Amuluru <nishanth@fossee.in>
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"""
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Tests for django test runner
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"""
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import StringIO
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import unittest
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import django
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from django.core.exceptions import ImproperlyConfigured
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from django.test import simple
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class DjangoTestRunnerTests(unittest.TestCase):
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    def test_failfast(self):
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        class MockTestOne(unittest.TestCase):
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            def runTest(self):
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                assert False
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        class MockTestTwo(unittest.TestCase):
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            def runTest(self):
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                assert False
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        suite = unittest.TestSuite([MockTestOne(), MockTestTwo()])
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        mock_stream = StringIO.StringIO()
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        dtr = simple.DjangoTestRunner(verbosity=0, failfast=False, stream=mock_stream)
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        result = dtr.run(suite)
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        self.assertEqual(2, result.testsRun)
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        self.assertEqual(2, len(result.failures))
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        dtr = simple.DjangoTestRunner(verbosity=0, failfast=True, stream=mock_stream)
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        result = dtr.run(suite)
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        self.assertEqual(1, result.testsRun)
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        self.assertEqual(1, len(result.failures))
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class DependencyOrderingTests(unittest.TestCase):
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    def test_simple_dependencies(self):
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        raw = [
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            ('s1', ['alpha']),
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            ('s2', ['bravo']),
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            ('s3', ['charlie']),
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        ]
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        dependencies = {
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            'alpha': ['charlie'],
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            'bravo': ['charlie'],
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        }
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        ordered = simple.dependency_ordered(raw, dependencies=dependencies)
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        ordered_sigs = [sig for sig,aliases in ordered]
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        self.assertTrue('s1' in ordered_sigs)
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        self.assertTrue('s2' in ordered_sigs)
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        self.assertTrue('s3' in ordered_sigs)
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s1'))
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s2'))
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    def test_chained_dependencies(self):
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        raw = [
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            ('s1', ['alpha']),
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            ('s2', ['bravo']),
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            ('s3', ['charlie']),
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        ]
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        dependencies = {
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            'alpha': ['bravo'],
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            'bravo': ['charlie'],
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        }
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        ordered = simple.dependency_ordered(raw, dependencies=dependencies)
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        ordered_sigs = [sig for sig,aliases in ordered]
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        self.assertTrue('s1' in ordered_sigs)
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        self.assertTrue('s2' in ordered_sigs)
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        self.assertTrue('s3' in ordered_sigs)
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        # Explicit dependencies
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        self.assertTrue(ordered_sigs.index('s2') < ordered_sigs.index('s1'))
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s2'))
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        # Implied dependencies
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s1'))
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    def test_multiple_dependencies(self):
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        raw = [
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            ('s1', ['alpha']),
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            ('s2', ['bravo']),
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            ('s3', ['charlie']),
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            ('s4', ['delta']),
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        ]
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        dependencies = {
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            'alpha': ['bravo','delta'],
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            'bravo': ['charlie'],
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            'delta': ['charlie'],
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        }
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        ordered = simple.dependency_ordered(raw, dependencies=dependencies)
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        ordered_sigs = [sig for sig,aliases in ordered]
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        self.assertTrue('s1' in ordered_sigs)
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        self.assertTrue('s2' in ordered_sigs)
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        self.assertTrue('s3' in ordered_sigs)
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        self.assertTrue('s4' in ordered_sigs)
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        # Explicit dependencies
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        self.assertTrue(ordered_sigs.index('s2') < ordered_sigs.index('s1'))
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        self.assertTrue(ordered_sigs.index('s4') < ordered_sigs.index('s1'))
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s2'))
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s4'))
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        # Implicit dependencies
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        self.assertTrue(ordered_sigs.index('s3') < ordered_sigs.index('s1'))
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    def test_circular_dependencies(self):
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        raw = [
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            ('s1', ['alpha']),
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            ('s2', ['bravo']),
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        ]
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        dependencies = {
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            'bravo': ['alpha'],
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            'alpha': ['bravo'],
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        }
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        self.assertRaises(ImproperlyConfigured, simple.dependency_ordered, raw, dependencies=dependencies)
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