diff --git a/src/test/test_funktionen.c b/src/test/test_funktionen.c
index 438ef28..32ae518 100644
--- a/src/test/test_funktionen.c
+++ b/src/test/test_funktionen.c
@@ -395,6 +395,19 @@ void test_o_wins_onIndex_02_11_20(void)
     TEST_ASSERT_EQUAL_INT(expected, actual);
 }
 
+void test_volume_from_3_4_5(void)
+{
+    /* arrange */
+    int actual;
+    int expected = 60;
+
+    /* act */
+    actual = volume(3, 4, 5);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(expected, actual);
+}
+
 void test_stringLaenge_von_Kokosnuss(void)
 {
     /* arrange */