diff --git a/unittests/test_13.c b/unittests/test_13.c
new file mode 100644
index 0000000..5cc6d9a
--- /dev/null
+++ b/unittests/test_13.c
@@ -0,0 +1,9 @@
+#include "tests.h"
+
+void test_13()
+{
+    printf("TEST 13 STARTET\n");
+    char test[25];
+    assert(!resetInput(test));
+    printf("TEST 13 ERFOLGREICH\n");
+}
\ No newline at end of file
diff --git a/unittests/test_main.c b/unittests/test_main.c
index 8e262bb..87d9448 100644
--- a/unittests/test_main.c
+++ b/unittests/test_main.c
@@ -16,4 +16,5 @@ int main()
     test_10();
     test_11();
     test_12();
+    test_13();
 }
\ No newline at end of file
diff --git a/unittests/tests.h b/unittests/tests.h
index 9210433..f59ec9b 100644
--- a/unittests/tests.h
+++ b/unittests/tests.h
@@ -16,4 +16,5 @@ void test_8();
 void test_9();
 void test_10();
 void test_11();
-void test_12();
\ No newline at end of file
+void test_12();
+void test_13();
\ No newline at end of file