Exemple #1
0
 def testReadFiles(self):
     file_system = CachingFileSystem(_CreateLocalFs(),
                                     ObjectStoreCreator.Factory())
     expected = {
         './test1.txt': 'test1\n',
         './test2.txt': 'test2\n',
         './test3.txt': 'test3\n',
     }
     self.assertEqual(
         expected,
         file_system.Read(['./test1.txt', './test2.txt',
                           './test3.txt']).Get())
Exemple #2
0
class TestGithubFileSystem(unittest.TestCase):
  def setUp(self):
    self._gfs = GithubFileSystem.ForTest(
        'repo/', partial(FakeURLFSFetcher, LocalFileSystem('')))
    # Start and finish the repository load.
    self._cgfs = CachingFileSystem(self._gfs, ObjectStoreCreator.ForTest())

  def testReadDirectory(self):
    self._gfs.Refresh().Get()
    self.assertEqual(
        sorted(['requirements.txt', '.gitignore', 'README.md', 'src/']),
        sorted(self._gfs.ReadSingle('').Get()))
    self.assertEqual(
        sorted(['__init__.notpy', 'hello.notpy']),
        sorted(self._gfs.ReadSingle('src/').Get()))

  def testReadFile(self):
    self._gfs.Refresh().Get()
    expected = (
      '# Compiled Python files\n'
      '*.pyc\n'
    )
    self.assertEqual(expected, self._gfs.ReadSingle('.gitignore').Get())

  def testMultipleReads(self):
    self._gfs.Refresh().Get()
    self.assertEqual(
        self._gfs.ReadSingle('requirements.txt').Get(),
        self._gfs.ReadSingle('requirements.txt').Get())

  def testReads(self):
    self._gfs.Refresh().Get()
    expected = {
        'src/': sorted(['hello.notpy', '__init__.notpy']),
        '': sorted(['requirements.txt', '.gitignore', 'README.md', 'src/'])
    }

    read = self._gfs.Read(['', 'src/']).Get()
    self.assertEqual(expected['src/'], sorted(read['src/']))
    self.assertEqual(expected[''], sorted(read['']))

  def testStat(self):
    # This is the hash value from the zip on disk.
    real_hash = 'c36fc23688a9ec9e264d3182905dc0151bfff7d7'

    self._gfs.Refresh().Get()
    dir_stat = StatInfo(real_hash, {
      'hello.notpy': StatInfo(real_hash),
      '__init__.notpy': StatInfo(real_hash)
    })

    self.assertEqual(StatInfo(real_hash), self._gfs.Stat('README.md'))
    self.assertEqual(StatInfo(real_hash), self._gfs.Stat('src/hello.notpy'))
    self.assertEqual(dir_stat, self._gfs.Stat('src/'))

  def testBadReads(self):
    self._gfs.Refresh().Get()
    self.assertRaises(FileNotFoundError, self._gfs.Stat, 'DONT_README.md')
    self.assertRaises(FileNotFoundError,
                      self._gfs.ReadSingle('DONT_README.md').Get)

  def testCachingFileSystem(self):
    self._cgfs.Refresh().Get()
    initial_cgfs_read_one = self._cgfs.ReadSingle('src/hello.notpy').Get()

    self.assertEqual(initial_cgfs_read_one,
                     self._gfs.ReadSingle('src/hello.notpy').Get())
    self.assertEqual(initial_cgfs_read_one,
                     self._cgfs.ReadSingle('src/hello.notpy').Get())

    initial_cgfs_read_two = self._cgfs.Read(
        ['README.md', 'requirements.txt']).Get()

    self.assertEqual(
        initial_cgfs_read_two,
        self._gfs.Read(['README.md', 'requirements.txt']).Get())
    self.assertEqual(
        initial_cgfs_read_two,
        self._cgfs.Read(['README.md', 'requirements.txt']).Get())

  def testWithoutRefresh(self):
    # Without refreshing it will still read the content from blobstore, and it
    # does this via the magic of the FakeURLFSFetcher.
    self.assertEqual(['__init__.notpy', 'hello.notpy'],
                     sorted(self._gfs.ReadSingle('src/').Get()))

  def testRefresh(self):
    test_bundle = _TestBundle()
    gfs, fetcher = test_bundle.CreateGfsAndFetcher()

    # It shouldn't fetch until Refresh does so; then it will do 2, one for the
    # stat, and another for the read.
    self.assertTrue(*fetcher.CheckAndReset())
    gfs.Refresh().Get()
    self.assertTrue(*fetcher.CheckAndReset(fetch_count=1,
                                           fetch_async_count=1,
                                           fetch_resolve_count=1))

    # Refresh is just an alias for Read('').
    gfs.Refresh().Get()
    self.assertTrue(*fetcher.CheckAndReset())

    initial_dir_read = sorted(gfs.ReadSingle('').Get())
    initial_file_read = gfs.ReadSingle('dir/file1').Get()

    version, data = test_bundle.Mutate()

    # Check that changes have not effected the file system yet.
    self.assertEqual(initial_dir_read, sorted(gfs.ReadSingle('').Get()))
    self.assertEqual(initial_file_read, gfs.ReadSingle('dir/file1').Get())
    self.assertNotEqual(StatInfo(version), gfs.Stat(''))

    gfs, fetcher = test_bundle.CreateGfsAndFetcher()
    gfs.Refresh().Get()
    self.assertTrue(*fetcher.CheckAndReset(fetch_count=1,
                                           fetch_async_count=1,
                                           fetch_resolve_count=1))

    # Check that the changes have affected the file system.
    self.assertEqual(data, gfs.ReadSingle('new-file').Get())
    self.assertEqual(test_bundle.files['zipfile/dir/file1'],
                     gfs.ReadSingle('dir/file1').Get())
    self.assertEqual(StatInfo(version), gfs.Stat('new-file'))

    # Regression test: ensure that reading the data after it's been mutated,
    # but before Refresh() has been realised, still returns the correct data.
    gfs, fetcher = test_bundle.CreateGfsAndFetcher()
    version, data = test_bundle.Mutate()

    refresh_future = gfs.Refresh()
    self.assertTrue(*fetcher.CheckAndReset(fetch_count=1, fetch_async_count=1))

    self.assertEqual(data, gfs.ReadSingle('new-file').Get())
    self.assertEqual(test_bundle.files['zipfile/dir/file1'],
                     gfs.ReadSingle('dir/file1').Get())
    self.assertEqual(StatInfo(version), gfs.Stat('new-file'))

    refresh_future.Get()
    self.assertTrue(*fetcher.CheckAndReset(fetch_resolve_count=1))

  def testGetThenRefreshOnStartup(self):
    # Regression test: Test that calling Get() but never resolving the future,
    # then Refresh()ing the data, causes the data to be refreshed.
    test_bundle = _TestBundle()
    gfs, fetcher = test_bundle.CreateGfsAndFetcher()
    self.assertTrue(*fetcher.CheckAndReset())

    # Get a predictable version.
    version, data = test_bundle.Mutate()

    read_future = gfs.ReadSingle('hello.txt')
    # Fetch for the Stat(), async-fetch for the Read().
    self.assertTrue(*fetcher.CheckAndReset(fetch_count=1, fetch_async_count=1))

    refresh_future = gfs.Refresh()
    self.assertTrue(*fetcher.CheckAndReset())

    self.assertEqual(data, read_future.Get())
    self.assertTrue(*fetcher.CheckAndReset(fetch_resolve_count=1))
    self.assertEqual(StatInfo(version), gfs.Stat('hello.txt'))
    self.assertTrue(*fetcher.CheckAndReset())

    # The fetch will already have been resolved, so resolving the Refresh won't
    # affect anything.
    refresh_future.Get()
    self.assertTrue(*fetcher.CheckAndReset())

    # Read data should not have changed.
    self.assertEqual(data, gfs.ReadSingle('hello.txt').Get())
    self.assertEqual(StatInfo(version), gfs.Stat('hello.txt'))
    self.assertTrue(*fetcher.CheckAndReset())
Exemple #3
0
class TestGithubFileSystem(unittest.TestCase):
    def setUp(self):
        self._gfs = GithubFileSystem.ForTest('repo',
                                             FakeURLFSFetcher.CreateLocal())
        # Start and finish the repository load.
        self._cgfs = CachingFileSystem(self._gfs, ObjectStoreCreator.ForTest())

    def testReadDirectory(self):
        self._gfs.Refresh().Get()
        self.assertEqual(
            sorted(['requirements.txt', '.gitignore', 'README.md', 'src/']),
            sorted(self._gfs.ReadSingle('').Get()))
        self.assertEqual(sorted(['__init__.notpy', 'hello.notpy']),
                         sorted(self._gfs.ReadSingle('src/').Get()))

    def testReadFile(self):
        self._gfs.Refresh().Get()
        expected = ('# Compiled Python files\n' '*.pyc\n')
        self.assertEqual(expected, self._gfs.ReadSingle('.gitignore').Get())

    def testMultipleReads(self):
        self._gfs.Refresh().Get()
        self.assertEqual(
            self._gfs.ReadSingle('requirements.txt').Get(),
            self._gfs.ReadSingle('requirements.txt').Get())

    def testReads(self):
        self._gfs.Refresh().Get()
        expected = {
            'src/': sorted(['hello.notpy', '__init__.notpy']),
            '': sorted(['requirements.txt', '.gitignore', 'README.md', 'src/'])
        }

        read = self._gfs.Read(['', 'src/']).Get()
        self.assertEqual(expected['src/'], sorted(read['src/']))
        self.assertEqual(expected[''], sorted(read['']))

    def testStat(self):
        self._gfs.Refresh().Get()
        dir_stat = StatInfo(
            FAKE_HASH, {
                'hello.notpy': StatInfo(FAKE_HASH),
                '__init__.notpy': StatInfo(FAKE_HASH)
            })

        self.assertEqual(StatInfo(FAKE_HASH), self._gfs.Stat('README.md'))
        self.assertEqual(StatInfo(FAKE_HASH),
                         self._gfs.Stat('src/hello.notpy'))
        self.assertEqual(dir_stat, self._gfs.Stat('src/'))

    def testBadReads(self):
        self._gfs.Refresh().Get()
        self.assertRaises(FileNotFoundError, self._gfs.Stat, 'DONT_README.md')
        self.assertRaises(FileNotFoundError,
                          self._gfs.ReadSingle('DONT_README.md').Get)

    def testCachingFileSystem(self):
        self._cgfs.Refresh().Get()
        initial_cgfs_read_one = self._cgfs.ReadSingle('src/hello.notpy').Get()

        self.assertEqual(initial_cgfs_read_one,
                         self._gfs.ReadSingle('src/hello.notpy').Get())
        self.assertEqual(initial_cgfs_read_one,
                         self._cgfs.ReadSingle('src/hello.notpy').Get())

        initial_cgfs_read_two = self._cgfs.Read(
            ['README.md', 'requirements.txt']).Get()

        self.assertEqual(
            initial_cgfs_read_two,
            self._gfs.Read(['README.md', 'requirements.txt']).Get())
        self.assertEqual(
            initial_cgfs_read_two,
            self._cgfs.Read(['README.md', 'requirements.txt']).Get())

    def testWithoutRefresh(self):
        self.assertRaises(FileNotFoundError, self._gfs.ReadSingle('src/').Get)

    def testRefresh(self):
        def make_sha_json(hash_value):
            from copy import deepcopy
            commit_json = json.loads(
                deepcopy(
                    LocalFileSystem('').ReadSingle(
                        'test_data/github_file_system/test_owner/repo/commits/HEAD'
                    ).Get()))
            commit_json['commit']['tree']['sha'] = 'hash' + FAKE_HASH[4:]

            return json.dumps(commit_json)

        files = {
            'zipfile/': '',
            'zipfile/hello.txt': 'world',
            'zipfile/readme': 'test zip',
            'zipfile/dir/file1': 'contents',
            'zipfile/dir/file2': 'more contents'
        }

        string = _ZipFromFiles(files)

        test_files = {
            'test_owner': {
                'changing-repo': {
                    'commits': {
                        'HEAD': make_sha_json(FAKE_HASH)
                    },
                    'zipball': string
                }
            }
        }

        test_file_system = TestFileSystem(test_files)

        gfs = GithubFileSystem.ForTest(
            'changing-repo',
            FakeURLFSFetcher.Create(test_file_system),
            path='')

        gfs.Refresh().Get()
        initial_dir_read = sorted(gfs.ReadSingle('').Get())
        initial_file_read = gfs.ReadSingle('dir/file1').Get()

        # Change the underlying data.
        files['zipfile/hello.txt'] = 'hello world again'
        files['zipfile/new-file'] = 'a new file'
        files['zipfile/dir/file1'] = 'changed file'
        test_files['test_owner']['changing-repo']['zipball'] = _ZipFromFiles(
            files)
        test_files['test_owner']['changing-repo']['commits']['HEAD'] = (
            make_sha_json(FAKE_HASH + 'hash'))

        # Check that changes have not effected the file system yet.
        self.assertEqual(initial_dir_read, sorted(gfs.ReadSingle('').Get()))
        self.assertEqual(initial_file_read, gfs.ReadSingle('dir/file1').Get())

        gfs.Refresh().Get()

        # Check that the changes have effected the file system.
        self.assertTrue('new-file' in gfs.ReadSingle('').Get())
        self.assertEqual(files['zipfile/dir/file1'],
                         gfs.ReadSingle('dir/file1').Get())