Change traverse_test.test_module to traverse a constructed dummy module rather than testcase itself.

PiperOrigin-RevId: 197010681

tensorflow/tools/common/BUILD

@@ -40,7 +40,24 @@ py_test(
     srcs = ["traverse_test.py"],
     srcs_version = "PY2AND3",
     deps = [
+        ":test_module1",
+        ":test_module2",
         ":traverse",
         "//tensorflow/python:platform_test",
     ],
 )
+
+py_library(
+    name = "test_module1",
+    srcs = ["test_module1.py"],
+    srcs_version = "PY2AND3",
+    deps = [
+        ":test_module2",
+    ],
+)
+
+py_library(
+    name = "test_module2",
+    srcs = ["test_module2.py"],
+    srcs_version = "PY2AND3",
+)

tensorflow/tools/common/test_module1.py

@@ -0,0 +1,31 @@
+# Copyright 2018 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.
+# ==============================================================================
+"""A module target for TraverseTest.test_module."""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from tensorflow.tools.common import test_module2
+
+
+class ModuleClass1(object):
+
+  def __init__(self):
+    self._m2 = test_module2.ModuleClass2()
+
+  def __model_class1_method__(self):
+    pass
+

tensorflow/tools/common/test_module2.py

@@ -0,0 +1,29 @@
+# Copyright 2018 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.
+# ==============================================================================
+"""A module target for TraverseTest.test_module."""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+
+class ModuleClass2(object):
+
+  def __init__(self):
+    pass
+
+  def __model_class1_method__(self):
+    pass
+

tensorflow/tools/common/traverse_test.py

@@ -18,9 +18,9 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-import sys
-
 from tensorflow.python.platform import googletest
+from tensorflow.tools.common import test_module1
+from tensorflow.tools.common import test_module2
 from tensorflow.tools.common import traverse
 
 
@@ -30,10 +30,6 @@ class TestVisitor(object):
     self.call_log = []
 
   def __call__(self, path, parent, children):
-    # Do not traverse googletest, it's very deep.
-    for item in list(children):
-      if item[1] is googletest:
-        children.remove(item)
     self.call_log += [(path, parent, children)]
 
 
@@ -51,13 +47,12 @@ class TraverseTest(googletest.TestCase):
 
   def test_module(self):
     visitor = TestVisitor()
-    traverse.traverse(sys.modules[__name__], visitor)
+    traverse.traverse(test_module1, visitor)
 
     called = [parent for _, parent, _ in visitor.call_log]
 
-    self.assertIn(TestVisitor, called)
-    self.assertIn(TraverseTest, called)
-    self.assertIn(traverse, called)
+    self.assertIn(test_module1.ModuleClass1, called)
+    self.assertIn(test_module2.ModuleClass2, called)
 
   def test_class(self):
     visitor = TestVisitor()