calling fini functions to avoid memory leak (#791)

* Fix test memory leaks

1.  calling rcutils_string_map_fini to avoid memory leak
2.  Fix memory leak that not to call rcutils_string_array_fini for enclaves
3.  Fix that not to rcutils_string_array_fini for node_names_2 and node_namespaces_2
4.  Fix that not to rcl_log_levels_fini for copied_log_levels
5.  Fix that not to call rmw_security_options_fini for options
6.  Call test_msgs__srv__BasicTypes_Request__fini for service_request in the end

Signed-off-by: Chen Lihui <Lihui.Chen@sony.com>

rcl/test/rcl/test_expand_topic_name.cpp

@@ -226,6 +226,9 @@ TEST(test_expand_topic_name, internal_error) {
     EXPECT_TRUE(rcl_error_is_set());
     rcl_reset_error();
   }
+
+  ret = rcutils_string_map_fini(&subs);
+  ASSERT_EQ(RCL_RET_OK, ret);
 }
 
 TEST(test_expand_topic_name, various_valid_topics) {

rcl/test/rcl/test_get_node_names.cpp

@@ -279,6 +279,9 @@ TEST_F(
   ret = rcutils_string_array_fini(&node_namespaces);
   ASSERT_EQ(RCUTILS_RET_OK, ret);
 
+  ret = rcutils_string_array_fini(&enclaves);
+  ASSERT_EQ(RCUTILS_RET_OK, ret);
+
   ret = rcl_node_fini(&node1);
   EXPECT_EQ(RCL_RET_OK, ret) << rcl_get_error_string().str;
 

rcl/test/rcl/test_graph.cpp

@@ -1435,6 +1435,10 @@ TEST_F(CLASSNAME(TestGraphFixture, RMW_IMPLEMENTATION), test_bad_get_node_names)
     EXPECT_EQ(RCUTILS_RET_OK, ret);
     ret = rcutils_string_array_fini(&node_namespaces);
     EXPECT_EQ(RCUTILS_RET_OK, ret);
+    ret = rcutils_string_array_fini(&node_names_2);
+    EXPECT_EQ(RCUTILS_RET_OK, ret);
+    ret = rcutils_string_array_fini(&node_namespaces_2);
+    EXPECT_EQ(RCUTILS_RET_OK, ret);
     ret = rcutils_string_array_fini(&node_enclaves);
     EXPECT_EQ(RCUTILS_RET_OK, ret);
   });

rcl/test/rcl/test_security.cpp

@@ -257,6 +257,7 @@ TEST_F(TestGetSecureRoot, test_get_security_options) {
     TEST_RESOURCES_DIRECTORY TEST_SECURITY_DIRECTORY_RESOURCES_DIR_NAME
     PATH_SEPARATOR "enclaves" PATH_SEPARATOR TEST_ENCLAVE,
     options.security_root_path);
+  EXPECT_EQ(RMW_RET_OK, rmw_security_options_fini(&options, &allocator));
 }
 
 TEST_F(TestGetSecureRoot, test_rcl_security_enabled) {

rcl/test/rcl/test_service.cpp

@@ -537,6 +537,10 @@ TEST_F(CLASSNAME(TestServiceFixture, RMW_IMPLEMENTATION), test_fail_take_request
 
   test_msgs__srv__BasicTypes_Request service_request;
   test_msgs__srv__BasicTypes_Request__init(&service_request);
+  OSRF_TESTING_TOOLS_CPP_SCOPE_EXIT(
+  {
+    test_msgs__srv__BasicTypes_Request__fini(&service_request);
+  });
   rmw_service_info_t header;
 
   ret = rcl_take_request_with_info(nullptr, &header, &service_request);