Enable occ_grid component test

nav2_map_server/test/component/CMakeLists.txt

@@ -7,15 +7,16 @@ ament_add_gtest_executable(test_occ_grid_node
 ament_target_dependencies(test_occ_grid_node rclcpp nav_msgs)
 target_link_libraries(test_occ_grid_node
   ${library_name}
+  stdc++fs
 )
 
-# Flaky test
-#ament_add_test(test_occ_grid_cpp
-#  GENERATE_RESULT_FOR_RETURN_CODE_ZERO
-#  COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/test_occ_grid_launch.py"
-#  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
-#  ENV
-#    TEST_DIR=${TEST_DIR}
-#    TEST_LAUNCH_DIR=${TEST_LAUNCH_DIR}
-#    TEST_EXECUTABLE=$<TARGET_FILE:test_occ_grid_node>
-#)
+# occ_grid component test
+ament_add_test(test_occ_grid_node
+  GENERATE_RESULT_FOR_RETURN_CODE_ZERO
+  COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/test_occ_grid_launch.py"
+  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
+  ENV
+    TEST_DIR=${TEST_DIR}
+    TEST_LAUNCH_DIR=${TEST_LAUNCH_DIR}
+    TEST_EXECUTABLE=$<TARGET_FILE:test_occ_grid_node>
+)