1 files changed, 37 insertions, 0 deletions
diff --git a/catapult/devil/devil/android/device_denylist_test.py b/catapult/devil/devil/android/device_denylist_test.py
new file mode 100644
index 00000000..b5d79e83
--- /dev/null
+++ b/catapult/devil/devil/android/device_denylist_test.py
@@ -0,0 +1,37 @@
+#! /usr/bin/env python
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import tempfile
+import unittest
+
+from devil.android import device_denylist
+
+
+class DeviceDenylistTest(unittest.TestCase):
+  def testDenylistFileDoesNotExist(self):
+    with tempfile.NamedTemporaryFile() as denylist_file:
+      # Allow the temporary file to be deleted.
+      pass
+
+    test_denylist = device_denylist.Denylist(denylist_file.name)
+    self.assertEquals({}, test_denylist.Read())
+
+  def testDenylistFileIsEmpty(self):
+    try:
+      with tempfile.NamedTemporaryFile(delete=False) as denylist_file:
+        # Allow the temporary file to be closed.
+        pass
+
+      test_denylist = device_denylist.Denylist(denylist_file.name)
+      self.assertEquals({}, test_denylist.Read())
+
+    finally:
+      if os.path.exists(denylist_file.name):
+        os.remove(denylist_file.name)
+
+
+if __name__ == '__main__':
+  unittest.main()