Add test for grm argument parsing in host tests

Author: bridadan

test/test/host_test_default.py

@@ -0,0 +1,38 @@
+# Copyright (c) 2018, Arm Limited and affiliates.
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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 unittest
+from mbed_os_tools.test.host_tests_runner.host_test_default import DefaultTestSelector
+
+
+class HostTestDefaultTestCase(unittest.TestCase):
+
+    def test_os_info(self):
+        expected = {
+            "grm_module" : "module_name",
+            "grm_host" : "10.2.123.43",
+            "grm_port" : "3334",
+        }
+        arg = [expected["grm_module"], expected["grm_host"], expected["grm_port"]]
+        result = DefaultTestSelector._parse_grm(":".join(arg))
+        self.assertEqual(result, expected)
+
+        expected["grm_host"] = "https://10.2.123.43"
+        arg = [expected["grm_module"], expected["grm_host"], expected["grm_port"]]
+        result = DefaultTestSelector._parse_grm(":".join(arg))
+        self.assertEqual(result, expected)
+
+if __name__ == '__main__':
+    unittest.main()