diff --git a/src/test/c/Jason/test_ASCII_art.c b/src/test/c/Jason/test_ASCII_art.c
index 5edde35..276e667 100644
--- a/src/test/c/Jason/test_ASCII_art.c
+++ b/src/test/c/Jason/test_ASCII_art.c
@@ -51,6 +51,20 @@ void test_stringAbgleich(void){
     befuellenDesArraysMitX(message, 8);
 
 
+    // assert
+    TEST_ASSERT_EQUAL_STRING(expectedMessage, message);
+}
+
+void test_stringAbgleichMitLeerzeichen(void){
+    // arrange
+    char expectedMessage[] = "X X X X X X X X X";
+
+    // act
+    char message[19];
+    befuellenDesArraysMitX(message, 18);
+    befuelleArrayMitLeerzeichen(message, 18);
+
+
     // assert
     TEST_ASSERT_EQUAL_STRING(expectedMessage, message);
 }
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