diff --git a/test/test_wwm.c b/test/test_wwm.c
index 4a644d5..85a87b1 100644
--- a/test/test_wwm.c
+++ b/test/test_wwm.c
@@ -32,3 +32,9 @@ void test_setGeld_2(void) {
 
 
 }
+
+void test_crandomNumber(void){
+    int result = crandomNumber();
+    TEST_ASSERT_TRUE(result >= 0 && result <= 9);
+
+}