django/tests/test_runner/test_parallel.py

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import unittest
from django.test import SimpleTestCase
from django.test.runner import RemoteTestResult
from django.utils import six
try:
import tblib
except ImportError:
tblib = None
class ParallelTestRunnerTest(SimpleTestCase):
"""
End-to-end tests of the parallel test runner.
These tests are only meaningful when running tests in parallel using
the --parallel option, though it doesn't hurt to run them not in
parallel.
"""
@unittest.skipUnless(six.PY3, 'subtests were added in Python 3.4')
def test_subtest(self):
"""
Check that passing subtests work.
"""
for i in range(2):
with self.subTest(index=i):
self.assertEqual(i, i)
class SampleFailingSubtest(SimpleTestCase):
# This method name doesn't begin with "test" to prevent test discovery
# from seeing it.
def dummy_test(self):
"""
A dummy test for testing subTest failures.
"""
for i in range(3):
with self.subTest(index=i):
self.assertEqual(i, 1)
class RemoteTestResultTest(SimpleTestCase):
@unittest.skipUnless(six.PY3 and tblib is not None, 'requires tblib to be installed')
def test_add_failing_subtests(self):
"""
Failing subtests are added correctly using addSubTest().
"""
# Manually run a test with failing subtests to prevent the failures
# from affecting the actual test run.
result = RemoteTestResult()
subtest_test = SampleFailingSubtest(methodName='dummy_test')
subtest_test.run(result=result)
events = result.events
self.assertEqual(len(events), 4)
event = events[1]
self.assertEqual(event[0], 'addSubTest')
self.assertEqual(str(event[2]), 'dummy_test (test_runner.test_parallel.SampleFailingSubtest) (index=0)')
self.assertEqual(repr(event[3][1]), "AssertionError('0 != 1',)")
event = events[2]
self.assertEqual(repr(event[3][1]), "AssertionError('2 != 1',)")