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#!/usr/bin/env python
# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import unittest
from caching_rietveld_patcher import (CachingRietveldPatcher,
_VERSION_CACHE_MAXAGE)
from datetime import datetime
from object_store_creator import ObjectStoreCreator
from test_patcher import TestPatcher
_TEST_PATCH_VERSION = '1'
_TEST_PATCH_FILES = (['add.txt'], ['del.txt'], ['modify.txt'])
_TEST_PATCH_DATA = {
'add.txt': 'add',
'modify.txt': 'modify',
}
class FakeDateTime(object):
def __init__(self, time=datetime.now()):
self.time = time
def now(self):
return self.time
class CachingRietveldPatcherTest(unittest.TestCase):
def setUp(self):
self._datetime = FakeDateTime()
self._test_patcher = TestPatcher(_TEST_PATCH_VERSION,
_TEST_PATCH_FILES,
_TEST_PATCH_DATA)
self._patcher = CachingRietveldPatcher(
self._test_patcher,
ObjectStoreCreator(start_empty=False),
self._datetime)
def testGetVersion(self):
# Invalidate cache.
self._datetime.time += _VERSION_CACHE_MAXAGE
# Fill cache.
self._patcher.GetVersion()
count = self._test_patcher.get_version_count
# Should read from cache.
self._patcher.GetVersion()
self.assertEqual(count, self._test_patcher.get_version_count)
# Invalidate cache.
self._datetime.time += _VERSION_CACHE_MAXAGE
# Should fetch version.
self._patcher.GetVersion()
self.assertEqual(count + 1, self._test_patcher.get_version_count)
def testGetPatchedFiles(self):
# Fill cache.
self._patcher.GetPatchedFiles()
count = self._test_patcher.get_patched_files_count
# Should read from cache.
self._patcher.GetPatchedFiles()
self.assertEqual(count, self._test_patcher.get_patched_files_count)
def testApply(self):
# Fill cache.
self._patcher.Apply(['add.txt'], None).Get()
count = self._test_patcher.apply_count
# Should read from cache even though it's reading another file.
self._patcher.Apply(['modify.txt'], None).Get()
self.assertEqual(count, self._test_patcher.apply_count)
if __name__ == '__main__':
unittest.main()
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