add summary_dep_test.py to check for no TF dep from tb.summary.v2

nfelt · nfelt · commit 976064d2c782 · 2019-01-25T21:11:08.000-08:00
diff --git a/tensorboard/summary/BUILD b/tensorboard/summary/BUILD
@@ -62,3 +62,13 @@ py_test(
         "//tensorboard:expect_tensorflow_installed",
     ],
 )
+
+py_test(
+    name = "summary_dep_test",
+    size = "small",
+    srcs = ["summary_dep_test.py"],
+    srcs_version = "PY2AND3",
+    deps = [
+        ":summary_v2",
+    ],
+)
diff --git a/tensorboard/summary/summary_dep_test.py b/tensorboard/summary/summary_dep_test.py
@@ -0,0 +1,38 @@
+# 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.
+# ==============================================================================
+"""Dependency tests for the `tensorboard.summary` APIs.
+
+This test is isolated in its own file to avoid depending on TensorFlow (either
+directly or transitively), since we need to test the *absence* of a TF dep.
+"""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import sys
+import unittest
+
+
+class SummaryV2DepTest(unittest.TestCase):
+
+  def test_summary_v2_has_no_immediate_tf_dep(self):
+    import tensorboard.summary.v2
+    from tensorboard.summary import v2
+    self.assertEqual('notfound', sys.modules.get('tensorflow', 'notfound'))
+
+
+if __name__ == '__main__':
+  unittest.main()
