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88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
import unittest
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from django.test import SimpleTestCase
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from django.test.runner import RemoteTestResult
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from django.utils.version import PY37
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try:
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import tblib
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except ImportError:
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tblib = None
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class ExceptionThatFailsUnpickling(Exception):
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"""
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After pickling, this class fails unpickling with an error about incorrect
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arguments passed to __init__().
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"""
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def __init__(self, arg):
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super().__init__()
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class ParallelTestRunnerTest(SimpleTestCase):
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"""
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End-to-end tests of the parallel test runner.
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These tests are only meaningful when running tests in parallel using
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the --parallel option, though it doesn't hurt to run them not in
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parallel.
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"""
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def test_subtest(self):
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"""
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Passing subtests work.
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"""
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for i in range(2):
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with self.subTest(index=i):
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self.assertEqual(i, i)
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class SampleFailingSubtest(SimpleTestCase):
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# This method name doesn't begin with "test" to prevent test discovery
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# from seeing it.
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def dummy_test(self):
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"""
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A dummy test for testing subTest failures.
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"""
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for i in range(3):
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with self.subTest(index=i):
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self.assertEqual(i, 1)
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class RemoteTestResultTest(SimpleTestCase):
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def test_pickle_errors_detection(self):
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picklable_error = RuntimeError('This is fine')
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not_unpicklable_error = ExceptionThatFailsUnpickling('arg')
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result = RemoteTestResult()
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result._confirm_picklable(picklable_error)
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msg = '__init__() missing 1 required positional argument'
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with self.assertRaisesMessage(TypeError, msg):
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result._confirm_picklable(not_unpicklable_error)
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@unittest.skipUnless(tblib is not None, 'requires tblib to be installed')
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def test_add_failing_subtests(self):
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"""
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Failing subtests are added correctly using addSubTest().
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"""
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# Manually run a test with failing subtests to prevent the failures
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# from affecting the actual test run.
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result = RemoteTestResult()
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subtest_test = SampleFailingSubtest(methodName='dummy_test')
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subtest_test.run(result=result)
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events = result.events
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self.assertEqual(len(events), 4)
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event = events[1]
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self.assertEqual(event[0], 'addSubTest')
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self.assertEqual(str(event[2]), 'dummy_test (test_runner.test_parallel.SampleFailingSubtest) (index=0)')
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trailing_comma = '' if PY37 else ','
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self.assertEqual(repr(event[3][1]), "AssertionError('0 != 1'%s)" % trailing_comma)
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event = events[2]
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self.assertEqual(repr(event[3][1]), "AssertionError('2 != 1'%s)" % trailing_comma)
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