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1# Copyright (C) 2009 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 os
30import subprocess
31import tempfile
32import unittest
33from modules.scm import detect_scm_system, SCM, ScriptError
34
35
36# Eventually we will want to write tests which work for both scms. (like update_webkit, changed_files, etc.)
37# Perhaps through some SCMTest base-class which both SVNTest and GitTest inherit from.
38
39def run(args):
40    SCM.run_command(args)
41
42# Exists to share svn repository creation code between the git and svn tests
43class SVNTestRepository:
44    @staticmethod
45    def _setup_test_commits(test_object):
46        # Add some test commits
47        os.chdir(test_object.svn_checkout_path)
48        test_file = open('test_file', 'w')
49        test_file.write("test1")
50        test_file.flush()
51
52        run(['svn', 'add', 'test_file'])
53        run(['svn', 'commit', '--quiet', '--message', 'initial commit'])
54
55        test_file.write("test2")
56        test_file.flush()
57
58        run(['svn', 'commit', '--quiet', '--message', 'second commit'])
59
60        test_file.write("test3")
61        test_file.close()
62
63        run(['svn', 'commit', '--quiet', '--message', 'third commit'])
64
65    @classmethod
66    def setup(cls, test_object):
67        # Create an test SVN repository
68        test_object.svn_repo_path = tempfile.mkdtemp(suffix="svn_test_repo")
69        test_object.svn_repo_url = "file://%s" % test_object.svn_repo_path # Not sure this will work on windows
70        # git svn complains if we don't pass --pre-1.5-compatible, not sure why:
71        # Expected FS format '2'; found format '3' at /usr/local/libexec/git-core//git-svn line 1477
72        run(['svnadmin', 'create', '--pre-1.5-compatible', test_object.svn_repo_path])
73
74        # Create a test svn checkout
75        test_object.svn_checkout_path = tempfile.mkdtemp(suffix="svn_test_checkout")
76        run(['svn', 'checkout', '--quiet', test_object.svn_repo_url, test_object.svn_checkout_path])
77
78        cls._setup_test_commits(test_object)
79
80    @classmethod
81    def tear_down(cls, test_object):
82        run(['rm', '-rf', test_object.svn_repo_path])
83        run(['rm', '-rf', test_object.svn_checkout_path])
84
85
86class SVNTest(unittest.TestCase):
87
88    def setUp(self):
89        SVNTestRepository.setup(self)
90        os.chdir(self.svn_checkout_path)
91
92    def tearDown(self):
93        SVNTestRepository.tear_down(self)
94
95    def test_detection(self):
96        scm = detect_scm_system(self.svn_checkout_path)
97        self.assertEqual(scm.display_name(), "svn")
98        self.assertEqual(scm.supports_local_commits(), False)
99
100class GitTest(unittest.TestCase):
101
102    def _setup_git_clone_of_svn_repository(self):
103        self.git_checkout_path = tempfile.mkdtemp(suffix="git_test_checkout")
104        # --quiet doesn't make git svn silent, so we redirect output
105        args = ['git', 'svn', '--quiet', 'clone', self.svn_repo_url, self.git_checkout_path]
106        git_svn_clone = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
107        git_svn_clone.communicate() # ignore output
108        git_svn_clone.wait()
109
110    def _tear_down_git_clone_of_svn_repository(self):
111        run(['rm', '-rf', self.git_checkout_path])
112
113    def setUp(self):
114        SVNTestRepository.setup(self)
115        self._setup_git_clone_of_svn_repository()
116        os.chdir(self.git_checkout_path)
117
118    def tearDown(self):
119        SVNTestRepository.tear_down(self)
120        self._tear_down_git_clone_of_svn_repository()
121
122    def test_detection(self):
123        scm = detect_scm_system(self.git_checkout_path)
124        self.assertEqual(scm.display_name(), "git")
125        self.assertEqual(scm.supports_local_commits(), True)
126
127    def test_commitish_parsing(self):
128        scm = detect_scm_system(self.git_checkout_path)
129
130        # Multiple revisions are cherry-picked.
131        self.assertEqual(len(scm.commit_ids_from_commitish_arguments(['HEAD~2'])), 1)
132        self.assertEqual(len(scm.commit_ids_from_commitish_arguments(['HEAD', 'HEAD~2'])), 2)
133
134        # ... is an invalid range specifier
135        self.assertRaises(ScriptError, scm.commit_ids_from_commitish_arguments, ['trunk...HEAD'])
136
137
138if __name__ == '__main__':
139    unittest.main()
140