diff --git a/src/test/c/test_Mathe.c b/src/test/c/test_Mathe.c
index ee30654..7d8ec5d 100644
--- a/src/test/c/test_Mathe.c
+++ b/src/test/c/test_Mathe.c
@@ -27,6 +27,15 @@ void test_Mathe_minus(void)
 }
 
 
+void test_Mathe_multi(void)
+{
+
+  int a=berechneErgebnis(1,2,'*');
+    /* assert */
+	TEST_ASSERT_EQUAL_INT(a,2);
+}
+
+