diff --git a/unittests/test_11.c b/unittests/test_11.c
new file mode 100644
index 0000000..55a5b45
--- /dev/null
+++ b/unittests/test_11.c
@@ -0,0 +1,8 @@
+#include "tests.h"
+
+void test_11()
+{
+    printf("TEST 11 STARTET\n");
+    assert(!printEndMsg(55, 35));
+    printf("TEST 11 ERFOLGREICH\n");
+}
\ No newline at end of file
diff --git a/unittests/test_main.c b/unittests/test_main.c
index db50b7e..e81dd03 100644
--- a/unittests/test_main.c
+++ b/unittests/test_main.c
@@ -14,4 +14,5 @@ int main()
     test_8();
     test_9();
     test_10();
+    test_11();
 }
\ No newline at end of file
diff --git a/unittests/tests.h b/unittests/tests.h
index 4650e39..99bce0f 100644
--- a/unittests/tests.h
+++ b/unittests/tests.h
@@ -14,4 +14,5 @@ void test_6();
 void test_7();
 void test_8();
 void test_9();
-void test_10();
\ No newline at end of file
+void test_10();
+void test_11();
\ No newline at end of file