test:runtime: out_stackdriver: add test with log tag

Signed-off-by: Jeff Luo <[email protected]>

Author: JeffLuoo

tests/runtime/out_stackdriver.c

@@ -3606,6 +3606,50 @@ void flb_test_resource_k8s_node_custom_k8s_regex_with_dot()
     flb_destroy(ctx);
 }
 
+void flb_test_resource_k8s_node_custom_k8s_regex_with_long_tag()
+{
+    int ret;
+    int size = sizeof(K8S_NODE_LOCAL_RESOURCE_ID_WITH_DOT) - 1;
+    flb_ctx_t *ctx;
+    int in_ffd;
+    int out_ffd;
+
+    /* Create context, flush every second (some checks omitted here) */
+    ctx = flb_create();
+    flb_service_set(ctx, "flush", "1", "grace", "1", NULL);
+
+    /* Lib input mode */
+    in_ffd = flb_input(ctx, (char *) "lib", NULL);
+    flb_input_set(ctx, in_ffd, "tag", "tagWithLongLen", NULL);
+
+    /* Stackdriver output */
+    out_ffd = flb_output(ctx, (char *) "stackdriver", NULL);
+    flb_output_set(ctx, out_ffd,
+                   "match", "tagWithLongLen",
+                   "resource", "k8s_node",
+                   "google_service_credentials", SERVICE_CREDENTIALS,
+                   "k8s_cluster_name", "test_cluster_name",
+                   "k8s_cluster_location", "test_cluster_location",
+                   "custom_k8s_regex", "^(?<node_name>.*)$",
+                   NULL);
+
+    /* Enable test mode */
+    ret = flb_output_set_test(ctx, out_ffd, "formatter",
+                              cb_check_k8s_node_custom_k8s_regex,
+                              NULL, NULL);
+
+    /* Start */
+    ret = flb_start(ctx);
+    TEST_CHECK(ret == 0);
+
+    /* Ingest data sample */
+    flb_lib_push(ctx, in_ffd, (char *) K8S_NODE_LOCAL_RESOURCE_ID_WITH_DOT, size);
+
+    sleep(2);
+    flb_stop(ctx);
+    flb_destroy(ctx);
+}
+
 void flb_test_resource_k8s_pod_no_local_resource_id()
 {
     int ret;
@@ -4714,6 +4758,7 @@ TEST_LIST = {
     {"resource_k8s_node_common", flb_test_resource_k8s_node_common },
     {"resource_k8s_node_no_local_resource_id", flb_test_resource_k8s_node_no_local_resource_id },
     {"resource_k8s_node_custom_k8s_regex_with_dot", flb_test_resource_k8s_node_custom_k8s_regex_with_dot },
+    {"resource_k8s_node_custom_k8s_regex_with_long_tag", flb_test_resource_k8s_node_custom_k8s_regex_with_long_tag },
     {"resource_k8s_pod_common", flb_test_resource_k8s_pod_common },
     {"resource_k8s_pod_no_local_resource_id", flb_test_resource_k8s_pod_no_local_resource_id },
     {"default_labels", flb_test_default_labels },