improve test integrity with rmw_cyclonedds_cpp. (#440)

Signed-off-by: Tomoya Fujita <Tomoya.Fujita@sony.com>
(cherry picked from commit 007f50e)

Author: fujitatomoya

launch_testing/launch_testing_examples/launch_testing_examples/check_msgs_launch_test.py

@@ -14,14 +14,14 @@
 
 import unittest
 
+from example_interfaces.msg import String
 import launch
 import launch.actions
 import launch_ros.actions
 import launch_testing.actions
 import launch_testing.markers
 from launch_testing_ros import WaitForTopics
 import pytest
-from std_msgs.msg import String
 
 
 @pytest.mark.launch_test
@@ -31,7 +31,7 @@ def generate_test_description():
         launch_ros.actions.Node(
             executable='talker',
             package='demo_nodes_cpp',
-            name='demo_node_1'
+            name='demo_node_1',
         ),
         launch_testing.actions.ReadyToTest()
     ])

launch_testing/launch_testing_examples/setup.cfg

@@ -2,3 +2,6 @@
 script_dir=$base/lib/launch_testing_examples
 [install]
 install_scripts=$base/lib/launch_testing_examples
+[tool:pytest]
+filterwarnings =
+    ignore:.*multi-threaded.*:DeprecationWarning