Add tests for Trace action utils

tracetools_launch/test/tracetools_launch/test_trace_action.py

@@ -0,0 +1,57 @@
+# Copyright 2019 Robert Bosch GmbH
+#
+# 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 tracetools_launch.action import Trace
+
+
+class TestTraceAction(unittest.TestCase):
+
+    def __init__(self, *args) -> None:
+        super().__init__(
+            *args,
+        )
+
+    def test_has_profiling_events(self) -> None:
+        events_lists_match = [
+            [
+                'lttng_ust_cyg_profile_fast:func_entry',
+                'hashtag:yopo',
+            ],
+            [
+                'lttng_ust_cyg_profile:func_entry',
+                'some_other_event',
+                'lttng_ust_cyg_profile:func_exit',
+            ],
+        ]
+        events_lists_no_match = [
+            [
+                'lttng_ust_statedump:bin_info',
+                'ros2:event',
+            ],
+            []
+        ]
+        for events in events_lists_match:
+            self.assertTrue(Trace.has_profiling_events(events))
+        for events in events_lists_no_match:
+            self.assertFalse(Trace.has_profiling_events(events))
+
+    def test_get_shared_lib_path(self) -> None:
+        # Only test not finding a lib for now
+        self.assertIsNone(Trace.get_shared_lib_path('random_lib_that_does_not_exist_I_hope.so'))
+
+
+if __name__ == '__main__':
+    unittest.main()