text: # Copyright 2018 The Kubeflow Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import mock
  import unittest
  import os
  
  from kfp_component.google.storage import download_blob
  
  DOWNLOAD_BLOB_MODULE = 'kfp_component.google.storage._download_blob'
  
  @mock.patch(DOWNLOAD_BLOB_MODULE + '.os')
  @mock.patch(DOWNLOAD_BLOB_MODULE + '.open')
  @mock.patch(DOWNLOAD_BLOB_MODULE + '.storage.Client')
  class DownloadBlobTest(unittest.TestCase):
  
      def test_download_blob_succeed(self, mock_storage_client,
          mock_open, mock_os):
          mock_os.path.dirname.return_value = '/foo'
          mock_os.path.exists.return_value = False
  
          download_blob('gs://foo/bar.py', 
              '/foo/bar.py')
  
          mock_blob = mock_storage_client().bucket().blob()
          mock_blob.download_to_file.assert_called_once()
          mock_os.makedirs.assert_called_once()