Add tests for TempfileManager

tests/test_TempfileManager.py

@@ -0,0 +1,34 @@
+# Copyright 2018 Open Source Robotics Foundation, Inc.
+#
+# 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.
+
+import os
+
+from superflore.TempfileManager import TempfileManager
+import unittest
+
+class TestTempfileManager(unittest.TestCase):
+    def test_create_specified(self):
+        """Test making a directory in a legal location"""
+        with TempfileManager('/tmp/test') as ret:
+            self.assertEqual(ret, '/tmp/test')
+        # clean up
+        self.assertTrue(os.path.exists('/tmp/test'))
+        os.rmdir('/tmp/test')
+
+    def test_failed_to_create(self):
+        """Test making a directory in a bad location"""
+        with self.assertRaises(OSError):
+            with TempfileManager('/root/bad_permissions') as tmp:
+                # code should not enter here
+                pass