[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/gslib/tests/test_tracker_file.py

Index: third_party/gsutil/gslib/tests/test_tracker_file.py
diff --git a/third_party/gsutil/gslib/tests/test_tracker_file.py b/third_party/gsutil/gslib/tests/test_tracker_file.py
new file mode 100644
index 0000000000000000000000000000000000000000..76f980a4c95485f5c9866d7d9046f0f2c22979a9
--- /dev/null
+++ b/third_party/gsutil/gslib/tests/test_tracker_file.py
@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# 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.
+"""Unit tests for tracker_file."""
+
+from gslib.tests.testcase.unit_testcase import GsUtilUnitTestCase
+from gslib.third_party.storage_apitools import storage_v1_messages as apitools_messages
+from gslib.tracker_file import _HashFilename
+from gslib.tracker_file import DeleteTrackerFile
+from gslib.tracker_file import GetRewriteTrackerFilePath
+from gslib.tracker_file import HashRewriteParameters
+from gslib.tracker_file import ReadRewriteTrackerFile
+from gslib.tracker_file import WriteRewriteTrackerFile
+
+
+class TestTrackerFile(GsUtilUnitTestCase):
+  """Unit tests for parallel upload functions in cp command."""
+
+  def test_HashFilename(self):
+    # Tests that _HashFilename function works for both string and unicode
+    # filenames (without raising any Unicode encode/decode errors).
+    _HashFilename('file1')
+    _HashFilename(u'file1')
+
+  def test_RewriteTrackerFile(self):
+    """Tests Rewrite tracker file functions."""
+    tracker_file_name = GetRewriteTrackerFilePath('bk1', 'obj1', 'bk2', 'obj2',
+                                                  self.test_api)
+    # Should succeed regardless of whether it exists.
+    DeleteTrackerFile(tracker_file_name)
+    src_obj_metadata = apitools_messages.Object(
+        bucket='bk1', name='obj1', etag='etag1', md5Hash='12345')
+    src_obj2_metadata = apitools_messages.Object(
+        bucket='bk1', name='obj1', etag='etag2', md5Hash='67890')
+    dst_obj_metadata = apitools_messages.Object(
+        bucket='bk2', name='obj2')
+    rewrite_token = 'token1'
+    self.assertIsNone(ReadRewriteTrackerFile(tracker_file_name,
+                                             src_obj_metadata))
+    rewrite_params_hash = HashRewriteParameters(
+        src_obj_metadata, dst_obj_metadata, 'full')
+    WriteRewriteTrackerFile(tracker_file_name, rewrite_params_hash,
+                            rewrite_token)
+    self.assertEqual(
+        ReadRewriteTrackerFile(tracker_file_name, rewrite_params_hash),
+        rewrite_token)
+
+    # Tracker file for an updated source object (with non-matching etag/md5)
+    # should return None.
+    rewrite_params_hash2 = HashRewriteParameters(
+        src_obj2_metadata, dst_obj_metadata, 'full')
+
+    self.assertIsNone(ReadRewriteTrackerFile(tracker_file_name,
+                                             rewrite_params_hash2))
+    DeleteTrackerFile(tracker_file_name)
+