diff --git a/samples/checked-api/CMakeLists.txt b/samples/checked-api/CMakeLists.txt
index e3015b9c0..d1ea8c6e4 100644
--- a/samples/checked-api/CMakeLists.txt
+++ b/samples/checked-api/CMakeLists.txt
@@ -5,9 +5,8 @@ cmake_minimum_required (VERSION 3.14)
 
 project(checked_api_sample)
 
-if(NOT CMAKE_BUILD_TYPE)
-  set(CMAKE_BUILD_TYPE Release)
-endif()
+# assertion required
+set(CMAKE_BUILD_TYPE Debug)
 
 set(CMAKE_C_STANDARD 23)
 
@@ -54,3 +53,9 @@ ExternalProject_Add(wasm
   BUILD_COMMAND     ${CMAKE_COMMAND} --build build
   INSTALL_COMMAND   ${CMAKE_COMMAND} --install build --prefix ${CMAKE_CURRENT_BINARY_DIR}
 )
+
+enable_testing()
+add_test(NAME checked_api_sample_test
+  COMMAND ${PROJECT_NAME}
+  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+)
diff --git a/samples/checked-api/src/demo.c b/samples/checked-api/src/demo.c
index 4db49fa47..5546bd2f3 100644
--- a/samples/checked-api/src/demo.c
+++ b/samples/checked-api/src/demo.c
@@ -80,8 +80,18 @@ main(int argc, char *argv_main[])
                                                   arguments);
     VERIFY_API_RESULT(wasm_runtime_call_wasm_a_checked, api_result,
                       release_runtime);
-    printf("Native finished calling wasm function: fib, returned: %d\n",
-           result[0].of.i32);
+    printf("Native finished calling wasm function: fib(%d), returned: %d\n",
+           arguments[0].of.i32, result[0].of.i32);
+    bh_assert(result[0].of.i32 == 8);
+
+    arguments[0].of.i32 = 2;
+    api_result = wasm_runtime_call_wasm_a_checked(exec_env, func, 1, result, 1,
+                                                  arguments);
+    VERIFY_API_RESULT(wasm_runtime_call_wasm_a_checked, api_result,
+                      release_runtime);
+    printf("Native finished calling wasm function: fib(%d), returned: %d\n",
+           arguments[0].of.i32, result[0].of.i32);
+    bh_assert(result[0].of.i32 == 1);
 
     ret = EXIT_SUCCESS;
 
diff --git a/samples/checked-api/wasm-apps/fib.c b/samples/checked-api/wasm-apps/fib.c
index 22a63b9b1..6603dfc59 100644
--- a/samples/checked-api/wasm-apps/fib.c
+++ b/samples/checked-api/wasm-apps/fib.c
@@ -17,7 +17,6 @@ __attribute__((export_name("fib"))) int
 fib(int n)
 {
     int result = fibonacci(n);
-    printf("fibonacci(%d)=%d\n", n, result);
     return result;
 }