subversion_file_system_test.py revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1#!/usr/bin/env python
2# Copyright (c) 2012 The Chromium Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6import json
7import os
8import unittest
9
10from extensions_paths import SERVER2
11from fake_url_fetcher import FakeUrlFetcher
12from file_system import FileSystemError, StatInfo
13from subversion_file_system import SubversionFileSystem
14from test_util import ReadFile, Server2Path
15
16
17_SHARED_FILE_SYSTEM_TEST_DATA = Server2Path('test_data', 'file_system')
18_SUBVERSION_FILE_SYSTEM_TEST_DATA = Server2Path(
19    'test_data', 'subversion_file_system')
20
21
22def _CreateSubversionFileSystem(path):
23  fetcher = FakeUrlFetcher(path)
24  return SubversionFileSystem(fetcher, fetcher, path), fetcher
25
26
27class SubversionFileSystemTest(unittest.TestCase):
28  def testReadFiles(self):
29    expected = {
30      'test1.txt': 'test1\n',
31      'test2.txt': 'test2\n',
32      'test3.txt': 'test3\n',
33    }
34    file_system, fetcher = _CreateSubversionFileSystem(
35        _SHARED_FILE_SYSTEM_TEST_DATA)
36    read_future = file_system.Read(['test1.txt', 'test2.txt', 'test3.txt'])
37    self.assertTrue(*fetcher.CheckAndReset(async_count=3))
38    self.assertEqual(expected, read_future.Get())
39    self.assertTrue(*fetcher.CheckAndReset(async_resolve_count=3))
40
41  def testListDir(self):
42    expected = ['dir/'] + ['file%d.html' % i for i in range(7)]
43    file_system, fetcher = _CreateSubversionFileSystem(
44        _SHARED_FILE_SYSTEM_TEST_DATA)
45    list_future = file_system.ReadSingle('list/')
46    self.assertTrue(*fetcher.CheckAndReset(async_count=1))
47    self.assertEqual(expected, sorted(list_future.Get()))
48    self.assertTrue(*fetcher.CheckAndReset(async_resolve_count=1))
49
50  def testListSubDir(self):
51    expected = ['empty.txt'] + ['file%d.html' % i for i in range(3)]
52    file_system, fetcher = _CreateSubversionFileSystem(
53        _SHARED_FILE_SYSTEM_TEST_DATA)
54    list_future = file_system.ReadSingle('list/dir/')
55    self.assertTrue(*fetcher.CheckAndReset(async_count=1))
56    self.assertEqual(expected, sorted(list_future.Get()))
57    self.assertTrue(*fetcher.CheckAndReset(async_resolve_count=1))
58
59  def testDirStat(self):
60    file_system, fetcher = _CreateSubversionFileSystem(
61        _SHARED_FILE_SYSTEM_TEST_DATA)
62    stat_info = file_system.Stat('stat/')
63    self.assertTrue(*fetcher.CheckAndReset(sync_count=1))
64    expected = StatInfo(
65      '151113',
66      child_versions=json.loads(ReadFile(
67          SERVER2, 'test_data', 'file_system', 'stat_result.json')))
68    self.assertEqual(expected, stat_info)
69
70  def testFileStat(self):
71    file_system, fetcher = _CreateSubversionFileSystem(
72        _SHARED_FILE_SYSTEM_TEST_DATA)
73    stat_info = file_system.Stat('stat/extension_api.h')
74    self.assertTrue(*fetcher.CheckAndReset(sync_count=1))
75    self.assertEqual(StatInfo('146163'), stat_info)
76
77  def testRevisions(self):
78    # This is a super hacky test. Record the path that was fetched then exit the
79    # test. Compare.
80    class ValueErrorFetcher(object):
81      def __init__(self):
82        self.last_fetched = None
83
84      def FetchAsync(self, path):
85        class ThrowsValueError(object):
86          def Get(self): raise ValueError()
87        self.last_fetched = path
88        return ThrowsValueError()
89
90      def Fetch(self, path, **kwargs):
91        self.last_fetched = path
92        raise ValueError()
93
94    file_fetcher = ValueErrorFetcher()
95    stat_fetcher = ValueErrorFetcher()
96    svn_path = 'svn:'
97
98    svn_file_system = SubversionFileSystem(file_fetcher,
99                                           stat_fetcher,
100                                           svn_path,
101                                           revision=42)
102
103    self.assertRaises(FileSystemError,
104                      svn_file_system.ReadSingle('dir/file').Get)
105    self.assertEqual('dir/file?p=42', file_fetcher.last_fetched)
106    # Stat() will always stat directories.
107    self.assertRaises(FileSystemError, svn_file_system.Stat, 'dir/file')
108    self.assertEqual('dir?pathrev=42', stat_fetcher.last_fetched)
109
110    self.assertRaises(FileSystemError,
111                      svn_file_system.ReadSingle('dir/').Get)
112    self.assertEqual('dir/?p=42', file_fetcher.last_fetched)
113    self.assertRaises(FileSystemError, svn_file_system.Stat, 'dir/')
114    self.assertEqual('dir?pathrev=42', stat_fetcher.last_fetched)
115
116  def testDirectoryVersionOnDeletion(self):
117    '''Tests the case when the most recent operation on a directory is the
118    deletion of a file. Here it is not enough to take the maximum version of all
119    files in the directory, as we used to, for obvious reasons.
120    '''
121    file_system, _ = _CreateSubversionFileSystem(
122        _SUBVERSION_FILE_SYSTEM_TEST_DATA)
123    dir_stat = file_system.Stat('docs_public_extensions_214898/')
124    self.assertEqual('214692', dir_stat.version)
125
126  def testEmptyDirectory(self):
127    file_system, _ = _CreateSubversionFileSystem(
128        _SUBVERSION_FILE_SYSTEM_TEST_DATA)
129    dir_stat = file_system.Stat('api_icons_214898/')
130    self.assertEqual('193838', dir_stat.version)
131    self.assertEqual({}, dir_stat.child_versions)
132
133if __name__ == '__main__':
134  unittest.main()
135