Enable test isolation on a few remaining ros2topic tests (#1087)

These weren't caught in the first round because they execute based on
the runtime-configured RMW implementation, where the others fan out to
all available implementations.

Signed-off-by: Scott K Logan <[email protected]>

Author: cottsay

ros2topic/test/test_bw_delay_hz.py

@@ -26,6 +26,7 @@
 import launch_testing.asserts
 import launch_testing.markers
 import launch_testing.tools
+from launch_testing_ros.actions import EnableRmwIsolation
 import launch_testing_ros.tools
 
 import pytest
@@ -61,6 +62,7 @@ def generate_test_description():
             cmd=['ros2', 'daemon', 'stop'],
             name='daemon-stop',
             on_exit=[
+                EnableRmwIsolation(),
                 ExecuteProcess(
                     cmd=['ros2', 'daemon', 'start'],
                     name='daemon-start',

ros2topic/test/test_echo_pub.py

@@ -26,6 +26,7 @@
 import launch_testing.asserts
 import launch_testing.markers
 import launch_testing.tools
+from launch_testing_ros.actions import EnableRmwIsolation
 import launch_testing_ros.tools
 
 import pytest
@@ -65,6 +66,7 @@ def generate_test_description():
             cmd=['ros2', 'daemon', 'stop'],
             name='daemon-stop',
             on_exit=[
+                EnableRmwIsolation(),
                 ExecuteProcess(
                     cmd=['ros2', 'daemon', 'start'],
                     name='daemon-start',

ros2topic/test/test_use_sim_time.py

@@ -26,6 +26,7 @@
 import launch_testing.asserts
 import launch_testing.markers
 import launch_testing.tools
+from launch_testing_ros.actions import EnableRmwIsolation
 import launch_testing_ros.tools
 
 import pytest
@@ -59,6 +60,7 @@ def generate_test_description():
             cmd=['ros2', 'daemon', 'stop'],
             name='daemon-stop',
             on_exit=[
+                EnableRmwIsolation(),
                 ExecuteProcess(
                     cmd=['ros2', 'daemon', 'start'],
                     name='daemon-start',