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#
# subunit: extensions to python unittest to get test results from subprocesses.
# Copyright (C) 2005 Robert Collins <robertc@robertcollins.net>
#
# Licensed under either the Apache License, Version 2.0 or the BSD 3-clause
# license at the users choice. A copy of both licenses are available in the
# project source as Apache-2.0 and BSD. You may not use this file except in
# compliance with one of these two licences.
#
# Unless required by applicable law or agreed to in writing, software
# distributed under these licenses is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# license you chose for the specific language governing permissions and
# limitations under that license.
#
"""Tests for subunit.TestResultFilter."""
from datetime import datetime
from subunit import iso8601
import unittest
from testtools import TestCase
from testtools.compat import _b, BytesIO, StringIO
from testtools.testresult.doubles import ExtendedTestResult
import subunit
from subunit.test_results import TestResultFilter
class TestTestResultFilter(TestCase):
"""Test for TestResultFilter, a TestResult object which filters tests."""
# While TestResultFilter works on python objects, using a subunit stream
# is an easy pithy way of getting a series of test objects to call into
# the TestResult, and as TestResultFilter is intended for use with subunit
# also has the benefit of detecting any interface skew issues.
example_subunit_stream = _b("""\
tags: global
test passed
success passed
test failed
tags: local
failure failed
test error
error error [
error details
]
test skipped
skip skipped
test todo
xfail todo
""")
def run_tests(self, result_filter, input_stream=None):
"""Run tests through the given filter.
:param result_filter: A filtering TestResult object.
:param input_stream: Bytes of subunit stream data. If not provided,
uses TestTestResultFilter.example_subunit_stream.
"""
if input_stream is None:
input_stream = self.example_subunit_stream
test = subunit.ProtocolTestCase(BytesIO(input_stream))
test.run(result_filter)
def test_default(self):
"""The default is to exclude success and include everything else."""
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result)
self.run_tests(result_filter)
# skips are seen as success by default python TestResult.
self.assertEqual(['error'],
[error[0].id() for error in filtered_result.errors])
self.assertEqual(['failed'],
[failure[0].id() for failure in
filtered_result.failures])
self.assertEqual(4, filtered_result.testsRun)
def test_exclude_errors(self):
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result, filter_error=True)
self.run_tests(result_filter)
# skips are seen as errors by default python TestResult.
self.assertEqual([], filtered_result.errors)
self.assertEqual(['failed'],
[failure[0].id() for failure in
filtered_result.failures])
self.assertEqual(3, filtered_result.testsRun)
def test_fixup_expected_failures(self):
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result,
fixup_expected_failures=set(["failed"]))
self.run_tests(result_filter)
self.assertEqual(['failed', 'todo'],
[failure[0].id() for failure in filtered_result.expectedFailures])
self.assertEqual([], filtered_result.failures)
self.assertEqual(4, filtered_result.testsRun)
def test_fixup_expected_errors(self):
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result,
fixup_expected_failures=set(["error"]))
self.run_tests(result_filter)
self.assertEqual(['error', 'todo'],
[failure[0].id() for failure in filtered_result.expectedFailures])
self.assertEqual([], filtered_result.errors)
self.assertEqual(4, filtered_result.testsRun)
def test_fixup_unexpected_success(self):
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result, filter_success=False,
fixup_expected_failures=set(["passed"]))
self.run_tests(result_filter)
self.assertEqual(['passed'],
[passed.id() for passed in filtered_result.unexpectedSuccesses])
self.assertEqual(5, filtered_result.testsRun)
def test_exclude_failure(self):
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result, filter_failure=True)
self.run_tests(result_filter)
self.assertEqual(['error'],
[error[0].id() for error in filtered_result.errors])
self.assertEqual([],
[failure[0].id() for failure in
filtered_result.failures])
self.assertEqual(3, filtered_result.testsRun)
def test_exclude_skips(self):
filtered_result = subunit.TestResultStats(None)
result_filter = TestResultFilter(filtered_result, filter_skip=True)
self.run_tests(result_filter)
self.assertEqual(0, filtered_result.skipped_tests)
self.assertEqual(2, filtered_result.failed_tests)
self.assertEqual(3, filtered_result.testsRun)
def test_include_success(self):
"""Successes can be included if requested."""
filtered_result = unittest.TestResult()
result_filter = TestResultFilter(filtered_result,
filter_success=False)
self.run_tests(result_filter)
self.assertEqual(['error'],
[error[0].id() for error in filtered_result.errors])
self.assertEqual(['failed'],
[failure[0].id() for failure in
filtered_result.failures])
self.assertEqual(5, filtered_result.testsRun)
def test_filter_predicate(self):
"""You can filter by predicate callbacks"""
filtered_result = unittest.TestResult()
def filter_cb(test, outcome, err, details):
return outcome == 'success'
result_filter = TestResultFilter(filtered_result,
filter_predicate=filter_cb,
filter_success=False)
self.run_tests(result_filter)
# Only success should pass
self.assertEqual(1, filtered_result.testsRun)
def test_time_ordering_preserved(self):
# Passing a subunit stream through TestResultFilter preserves the
# relative ordering of 'time' directives and any other subunit
# directives that are still included.
date_a = datetime(year=2000, month=1, day=1, tzinfo=iso8601.UTC)
date_b = datetime(year=2000, month=1, day=2, tzinfo=iso8601.UTC)
date_c = datetime(year=2000, month=1, day=3, tzinfo=iso8601.UTC)
subunit_stream = _b('\n'.join([
"time: %s",
"test: foo",
"time: %s",
"error: foo",
"time: %s",
""]) % (date_a, date_b, date_c))
result = ExtendedTestResult()
result_filter = TestResultFilter(result)
self.run_tests(result_filter, subunit_stream)
foo = subunit.RemotedTestCase('foo')
self.assertEquals(
[('time', date_a),
('startTest', foo),
('time', date_b),
('addError', foo, {}),
('stopTest', foo),
('time', date_c)], result._events)
def test_skip_preserved(self):
subunit_stream = _b('\n'.join([
"test: foo",
"skip: foo",
""]))
result = ExtendedTestResult()
result_filter = TestResultFilter(result)
self.run_tests(result_filter, subunit_stream)
foo = subunit.RemotedTestCase('foo')
self.assertEquals(
[('startTest', foo),
('addSkip', foo, {}),
('stopTest', foo), ], result._events)
def test_suite():
loader = subunit.tests.TestUtil.TestLoader()
result = loader.loadTestsFromName(__name__)
return result
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