diff --git a/test/test_minirechner.c b/test/test_minirechner.c
index cce14b7..140d6cb 100644
--- a/test/test_minirechner.c
+++ b/test/test_minirechner.c
@@ -19,4 +19,10 @@ void test_minitaschenrechner_3_plus_4(void)
     TEST_ASSERT_EQUAL(7, result);
 }
 
+void test_minitaschenrechner_float_plus_float(void)
+{
+    float result = addieren(3.1, 4.2);
+    TEST_ASSERT_EQUAL(7.3, result);
+}
+
 #endif // TEST