Add test to prevent identity renames in compatibility tools.

We previously had methods being renamed to the same name. This test will prevent a regression.

PiperOrigin-RevId: 248153339

tensorflow/tools/compatibility/BUILD

@@ -84,6 +84,7 @@ py_library(
 py_library(
     name = "all_renames_v2",
     srcs = ["all_renames_v2.py"],
+    srcs_version = "PY2AND3",
     visibility = [
         "//tensorflow:__pkg__",
         "//tensorflow:__subpackages__",
@@ -91,6 +92,18 @@ py_library(
     deps = [":renames_v2"],
 )
 
+py_test(
+    name = "all_renames_v2_test",
+    srcs = ["all_renames_v2_test.py"],
+    srcs_version = "PY2AND3",
+    deps = [
+        ":all_renames_v2",
+        "//tensorflow/python:client_testlib",
+        "//tensorflow/python:framework_test_lib",
+        "@six_archive//:six",
+    ],
+)
+
 py_library(
     name = "module_deprecations_v2",
     srcs = ["module_deprecations_v2.py"],

tensorflow/tools/compatibility/all_renames_v2_test.py

@@ -0,0 +1,40 @@
+# Copyright 2019 The TensorFlow Authors. 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.
+# ==============================================================================
+"""Tests for all_renames_v2."""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import six
+
+from tensorflow.python.framework import test_util
+from tensorflow.python.platform import test as test_lib
+from tensorflow.tools.compatibility import all_renames_v2
+
+
+class AllRenamesV2Test(test_util.TensorFlowTestCase):
+
+  def test_no_identity_renames(self):
+    identity_renames = [
+        old_name
+        for old_name, new_name in six.iteritems(all_renames_v2.symbol_renames)
+        if old_name == new_name
+    ]
+    self.assertEmpty(identity_renames)
+
+
+if __name__ == "__main__":
+  test_lib.main()