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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 functools
import os
from appengine_wrappers import GetAppVersion
from compiled_file_system import CompiledFileSystem
from copy import deepcopy
from file_system import FileNotFoundError
from mock_file_system import MockFileSystem
from object_store_creator import ObjectStoreCreator
from test_file_system import TestFileSystem
from test_object_store import TestObjectStore
import unittest
_TEST_DATA = {
'404.html': '404.html contents',
'apps': {
'a11y.html': 'a11y.html contents',
'about_apps.html': 'about_apps.html contents',
'fakedir': {
'file.html': 'file.html contents'
},
'deepdir': {
'deepfile.html': 'deepfile.html contents',
'deeper': {
'deepest.html': 'deepest.html contents',
},
}
},
'extensions': {
'activeTab.html': 'activeTab.html contents',
'alarms.html': 'alarms.html contents'
}
}
identity = lambda _, x: x
def _GetTestCompiledFsCreator():
'''Returns a function which creates CompiledFileSystem views of
TestFileSystems backed by _TEST_DATA.
'''
return functools.partial(
CompiledFileSystem.Factory(
ObjectStoreCreator(start_empty=False,
store_type=TestObjectStore,
disable_wrappers=True),
).Create,
TestFileSystem(deepcopy(_TEST_DATA)))
class CompiledFileSystemTest(unittest.TestCase):
def testPopulateNamespace(self):
def CheckNamespace(expected_file, expected_list, fs):
self.assertEqual(expected_file, fs._file_object_store.namespace)
self.assertEqual(expected_list, fs._list_object_store.namespace)
compiled_fs_creator = _GetTestCompiledFsCreator()
f = lambda x: x
CheckNamespace(
'class=CompiledFileSystem&'
'category=CompiledFileSystemTest/TestFileSystem/file&'
'app_version=%s' % GetAppVersion(),
'class=CompiledFileSystem&'
'category=CompiledFileSystemTest/TestFileSystem/list&'
'app_version=%s' % GetAppVersion(),
compiled_fs_creator(f, CompiledFileSystemTest))
CheckNamespace(
'class=CompiledFileSystem&'
'category=CompiledFileSystemTest/TestFileSystem/foo/file&'
'app_version=%s' % GetAppVersion(),
'class=CompiledFileSystem&'
'category=CompiledFileSystemTest/TestFileSystem/foo/list&'
'app_version=%s' % GetAppVersion(),
compiled_fs_creator(f, CompiledFileSystemTest, category='foo'))
def testPopulateFromFile(self):
def Sleepy(key, val):
return '%s%s' % ('Z' * len(key), 'z' * len(val))
compiled_fs = _GetTestCompiledFsCreator()(Sleepy, CompiledFileSystemTest)
self.assertEqual('ZZZZZZZZzzzzzzzzzzzzzzzzz',
compiled_fs.GetFromFile('404.html').Get())
self.assertEqual('ZZZZZZZZZZZZZZzzzzzzzzzzzzzzzzzz',
compiled_fs.GetFromFile('apps/a11y.html').Get())
self.assertEqual('ZZZZZZZZZZZZZZZZZZZZZZzzzzzzzzzzzzzzzzzz',
compiled_fs.GetFromFile('apps/fakedir/file.html').Get())
def testPopulateFromFileListing(self):
def strip_ext(path, files):
return [os.path.splitext(f)[0] for f in files]
compiled_fs = _GetTestCompiledFsCreator()(strip_ext, CompiledFileSystemTest)
expected_top_listing = [
'404',
'apps/a11y',
'apps/about_apps',
'apps/deepdir/deeper/deepest',
'apps/deepdir/deepfile',
'apps/fakedir/file',
'extensions/activeTab',
'extensions/alarms'
]
self.assertEqual(expected_top_listing,
sorted(compiled_fs.GetFromFileListing('').Get()))
expected_apps_listing = [
'a11y',
'about_apps',
'deepdir/deeper/deepest',
'deepdir/deepfile',
'fakedir/file',
]
self.assertEqual(expected_apps_listing,
sorted(compiled_fs.GetFromFileListing('apps/').Get()))
self.assertEqual(['file',],
compiled_fs.GetFromFileListing('apps/fakedir/').Get())
self.assertEqual(['deeper/deepest', 'deepfile'],
sorted(compiled_fs.GetFromFileListing(
'apps/deepdir/').Get()))
self.assertEqual(['deepest'],
compiled_fs.GetFromFileListing(
'apps/deepdir/deeper/').Get())
def testCaching(self):
compiled_fs = _GetTestCompiledFsCreator()(identity, CompiledFileSystemTest)
self.assertEqual('404.html contents',
compiled_fs.GetFromFile('404.html').Get())
self.assertEqual(set(('file.html',)),
set(compiled_fs.GetFromFileListing('apps/fakedir/').Get()))
compiled_fs._file_system._path_values['404.html'] = 'boom'
compiled_fs._file_system._path_values['apps/fakedir/'] = [
'file.html', 'boom.html']
self.assertEqual('404.html contents',
compiled_fs.GetFromFile('404.html').Get())
self.assertEqual(set(('file.html',)),
set(compiled_fs.GetFromFileListing('apps/fakedir/').Get()))
compiled_fs._file_system.IncrementStat()
self.assertEqual('boom', compiled_fs.GetFromFile('404.html').Get())
self.assertEqual(set(('file.html', 'boom.html')),
set(compiled_fs.GetFromFileListing('apps/fakedir/').Get()))
def testFailures(self):
compiled_fs = _GetTestCompiledFsCreator()(identity, CompiledFileSystemTest)
self.assertRaises(FileNotFoundError,
compiled_fs.GetFromFile('405.html').Get)
# TODO(kalman): would be nice to test this fails since apps/ is a dir.
compiled_fs.GetFromFile('apps')
#self.assertRaises(SomeError, compiled_fs.GetFromFile, 'apps/')
self.assertRaises(FileNotFoundError,
compiled_fs.GetFromFileListing('nodir/').Get)
# TODO(kalman): likewise, not a FileNotFoundError.
self.assertRaises(FileNotFoundError,
compiled_fs.GetFromFileListing('404.html/').Get)
def testCorrectFutureBehaviour(self):
# Tests that the underlying FileSystem's Read Future has had Get() called
# on it before the Future is resolved, but the underlying Future isn't
# resolved until Get is.
mock_fs = MockFileSystem(TestFileSystem(_TEST_DATA))
compiled_fs = CompiledFileSystem.Factory(
ObjectStoreCreator.ForTest()).Create(
mock_fs, lambda path, contents: contents, type(self))
self.assertTrue(*mock_fs.CheckAndReset())
future = compiled_fs.GetFromFile('404.html')
self.assertTrue(*mock_fs.CheckAndReset(stat_count=1, read_count=1))
future.Get()
self.assertTrue(*mock_fs.CheckAndReset(read_resolve_count=1))
future = compiled_fs.GetFromFileListing('apps/')
# Current behaviour is to have read=2 and read_resolve=1 because the first
# level is read eagerly, then all of the second is read (in parallel). If
# it weren't eager (and it may be worth experimenting with that) then it'd
# be read=1 and read_resolve=0.
self.assertTrue(*mock_fs.CheckAndReset(stat_count=1,
read_count=2,
read_resolve_count=1))
future.Get()
# It's doing 1 more level 'deeper' (already read 'fakedir' and 'deepdir'
# though not resolved), so that's 1 more read/resolve + the resolve from
# the first read.
self.assertTrue(*mock_fs.CheckAndReset(read_count=1, read_resolve_count=2))
# Even though the directory is 1 layer deep the caller has no way of
# determining that ahead of time (though perhaps the API could give some
# kind of clue, if we really cared).
future = compiled_fs.GetFromFileListing('extensions/')
self.assertTrue(*mock_fs.CheckAndReset(stat_count=1,
read_count=1,
read_resolve_count=1))
future.Get()
self.assertTrue(*mock_fs.CheckAndReset())
# Similar configuration to the 'apps/' case but deeper.
future = compiled_fs.GetFromFileListing('')
self.assertTrue(*mock_fs.CheckAndReset(stat_count=1,
read_count=2,
read_resolve_count=1))
future.Get()
self.assertTrue(*mock_fs.CheckAndReset(read_count=2, read_resolve_count=3))
if __name__ == '__main__':
unittest.main()
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