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1# Copyright (c) 2010 Google Inc. All rights reserved.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10# copyright notice, this list of conditions and the following disclaimer
11# in the documentation and/or other materials provided with the
12# distribution.
13#     * Neither the name of Google Inc. nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29import unittest
30
31from webkitpy.common.config.committers import Committer
32from webkitpy.common.system.filesystem_mock import MockFileSystem
33from webkitpy.common.system.outputcapture import OutputCapture
34from webkitpy.layout_tests.layout_package import test_results
35from webkitpy.layout_tests.layout_package import test_failures
36from webkitpy.thirdparty.mock import Mock
37from webkitpy.tool.bot.flakytestreporter import FlakyTestReporter
38from webkitpy.tool.mocktool import MockTool, MockStatusServer
39
40
41# Creating fake CommitInfos is a pain, so we use a mock one here.
42class MockCommitInfo(object):
43    def __init__(self, author_email):
44        self._author_email = author_email
45
46    def author(self):
47        # It's definitely possible to have commits with authors who
48        # are not in our committers.py list.
49        if not self._author_email:
50            return None
51        return Committer("Mock Committer", self._author_email)
52
53
54class FlakyTestReporterTest(unittest.TestCase):
55    def _mock_test_result(self, testname):
56        return test_results.TestResult(testname, [test_failures.FailureTextMismatch()])
57
58    def _assert_emails_for_test(self, emails):
59        tool = MockTool()
60        reporter = FlakyTestReporter(tool, 'dummy-queue')
61        commit_infos = [MockCommitInfo(email) for email in emails]
62        tool.checkout().recent_commit_infos_for_files = lambda paths: set(commit_infos)
63        self.assertEqual(reporter._author_emails_for_test([]), set(emails))
64
65    def test_author_emails_for_test(self):
66        self._assert_emails_for_test([])
67        self._assert_emails_for_test(["test1@test.com", "test1@test.com"])
68        self._assert_emails_for_test(["test1@test.com", "test2@test.com"])
69
70    def test_create_bug_for_flaky_test(self):
71        reporter = FlakyTestReporter(MockTool(), 'dummy-queue')
72        expected_stderr = """MOCK create_bug
73bug_title: Flaky Test: foo/bar.html
74bug_description: This is an automatically generated bug from the dummy-queue.
75foo/bar.html has been flaky on the dummy-queue.
76
77foo/bar.html was authored by test@test.com.
78http://trac.webkit.org/browser/trunk/LayoutTests/foo/bar.html
79
80FLAKE_MESSAGE
81
82The bots will update this with information from each new failure.
83
84If you believe this bug to be fixed or invalid, feel free to close.  The bots will re-open if the flake re-occurs.
85
86If you would like to track this test fix with another bug, please close this bug as a duplicate.  The bots will follow the duplicate chain when making future comments.
87
88component: Tools / Tests
89cc: test@test.com
90blocked: 50856
91"""
92        OutputCapture().assert_outputs(self, reporter._create_bug_for_flaky_test, ['foo/bar.html', ['test@test.com'], 'FLAKE_MESSAGE'], expected_stderr=expected_stderr)
93
94    def test_follow_duplicate_chain(self):
95        tool = MockTool()
96        reporter = FlakyTestReporter(tool, 'dummy-queue')
97        bug = tool.bugs.fetch_bug(78)
98        self.assertEqual(reporter._follow_duplicate_chain(bug).id(), 76)
99
100    def test_report_flaky_tests_creating_bug(self):
101        tool = MockTool()
102        tool.filesystem = MockFileSystem({"/mock/foo/bar-diffs.txt": "mock"})
103        tool.status_server = MockStatusServer(bot_id="mock-bot-id")
104        reporter = FlakyTestReporter(tool, 'dummy-queue')
105        reporter._lookup_bug_for_flaky_test = lambda bug_id: None
106        patch = tool.bugs.fetch_attachment(197)
107        expected_stderr = """MOCK create_bug
108bug_title: Flaky Test: foo/bar.html
109bug_description: This is an automatically generated bug from the dummy-queue.
110foo/bar.html has been flaky on the dummy-queue.
111
112foo/bar.html was authored by abarth@webkit.org.
113http://trac.webkit.org/browser/trunk/LayoutTests/foo/bar.html
114
115The dummy-queue just saw foo/bar.html flake (Text diff mismatch) while processing attachment 197 on bug 42.
116Bot: mock-bot-id  Port: MockPort  Platform: MockPlatform 1.0
117
118The bots will update this with information from each new failure.
119
120If you believe this bug to be fixed or invalid, feel free to close.  The bots will re-open if the flake re-occurs.
121
122If you would like to track this test fix with another bug, please close this bug as a duplicate.  The bots will follow the duplicate chain when making future comments.
123
124component: Tools / Tests
125cc: abarth@webkit.org
126blocked: 50856
127MOCK add_attachment_to_bug: bug_id=78, description=Failure diff from mock-bot-id filename=failure.diff
128MOCK bug comment: bug_id=42, cc=None
129--- Begin comment ---
130The dummy-queue encountered the following flaky tests while processing attachment 197:
131
132foo/bar.html bug 78 (author: abarth@webkit.org)
133The dummy-queue is continuing to process your patch.
134--- End comment ---
135
136"""
137        test_results = [self._mock_test_result('foo/bar.html')]
138
139        class MockZipFile(object):
140            def read(self, path):
141                return ""
142
143            def namelist(self):
144                return ['foo/bar-diffs.txt']
145
146        OutputCapture().assert_outputs(self, reporter.report_flaky_tests, [patch, test_results, MockZipFile()], expected_stderr=expected_stderr)
147
148    def test_optional_author_string(self):
149        reporter = FlakyTestReporter(MockTool(), 'dummy-queue')
150        self.assertEqual(reporter._optional_author_string([]), "")
151        self.assertEqual(reporter._optional_author_string(["foo@bar.com"]), " (author: foo@bar.com)")
152        self.assertEqual(reporter._optional_author_string(["a@b.com", "b@b.com"]), " (authors: a@b.com and b@b.com)")
153
154    def test_results_diff_path_for_test(self):
155        reporter = FlakyTestReporter(MockTool(), 'dummy-queue')
156        self.assertEqual(reporter._results_diff_path_for_test("test.html"), "test-diffs.txt")
157
158    def test_find_in_archive(self):
159        reporter = FlakyTestReporter(MockTool(), 'dummy-queue')
160
161        class MockZipFile(object):
162            def namelist(self):
163                return ["tmp/layout-test-results/foo/bar-diffs.txt"]
164
165        reporter._find_in_archive("foo/bar-diffs.txt", MockZipFile())
166        # This is not ideal, but its
167        reporter._find_in_archive("txt", MockZipFile())
168