Remove wrong test (#719)

Author: christophfroehlich

example_13/CMakeLists.txt

@@ -39,7 +39,6 @@ if(BUILD_TESTING)
   find_package(ament_cmake_pytest REQUIRED)
 
   ament_add_pytest_test(example_13_urdf_xacro test/test_urdf_xacro.py)
-  ament_add_pytest_test(view_example_13_launch test/test_view_robot_launch.py)
 
   function(add_ros_isolated_launch_test path)
     set(RUNNER "${ament_cmake_ros_DIR}/run_test_isolated.py")

example_13/test/test_three_robots_launch.py

@@ -30,7 +30,6 @@
 
 import os
 import unittest
-import psutil
 import subprocess
 
 from ament_index_python.packages import get_package_share_directory
@@ -350,10 +349,3 @@ class TestDescriptionCraneShutdown(unittest.TestCase):
     def test_exit_codes(self, proc_info):
         """Check if the processes exited normally."""
         launch_testing.asserts.assertExitCodes(proc_info)
-
-    def test_process_running(self):
-        for proc in psutil.process_iter():
-            # check whether the process name matches
-            if "ros2_control_node" in proc.name():
-                print("ros2_control_node found")
-                proc.kill()