Add mypy tests through ament_mypy

Signed-off-by: Christophe Bedard <bedard.christophe@gmail.com>

tracetools_launch/test/test_mypy.py

@@ -0,0 +1,22 @@
+# Copyright 2019 Canonical Ltd
+#
+# 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.
+
+from ament_mypy.main import main
+import pytest
+
+
+@pytest.mark.mypy
+@pytest.mark.linter
+def test_mypy():
+    assert main(argv=[]) == 0, 'Found errors'

tracetools_launch/test/tracetools_launch/test_trace_action.py

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from typing import List
 import unittest
 
 from tracetools_launch.action import Trace
@@ -26,7 +27,7 @@ class TestTraceAction(unittest.TestCase):
         )
 
     def test_has_profiling_events(self) -> None:
-        events_lists_match = [
+        events_lists_match: List[List[str]] = [
             [
                 'lttng_ust_cyg_profile_fast:func_entry',
                 'hashtag:yopo',
@@ -37,7 +38,7 @@ class TestTraceAction(unittest.TestCase):
                 'lttng_ust_cyg_profile:func_exit',
             ],
         ]
-        events_lists_no_match = [
+        events_lists_no_match: List[List[str]] = [
             [
                 'lttng_ust_statedump:bin_info',
                 'ros2:event',
@@ -50,7 +51,7 @@ class TestTraceAction(unittest.TestCase):
             self.assertFalse(Trace.has_profiling_events(events))
 
     def test_has_ust_memory_events(self) -> None:
-        events_lists_match = [
+        events_lists_match: List[List[str]] = [
             [
                 'hashtag:yopo',
                 'lttng_ust_libc:malloc',
@@ -60,7 +61,7 @@ class TestTraceAction(unittest.TestCase):
                 'lttng_ust_libc:still_a_match',
             ],
         ]
-        events_lists_no_match = [
+        events_lists_no_match: List[List[str]] = [
             [],
             [
                 'my_random:event',