diff --git a/main.cpp b/main.cpp
index aef2ee9..5b12090 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,8 +1,16 @@
 #include <cstdio>
+#include <cassert>
 #include "amap.h"
 #include "simap.h"
 
+void test_basics(amap mapdo, void *map) {
+	assert(NULL == mapdo(map, AMAP_GET, "asdf", NULL));
+}
 
 int main() {
+	/* test simap */
+	simap_instance si = simap_create();
+	test_basics(simap, &si);
+
 	return 0;
 }