Test Wurzel mit negative Zahl

src/test/test_duellist_spielesammlung_projekt.c

@@ -615,7 +615,17 @@ void test_squareRoot_validNumber(void)
     TEST_ASSERT_EQUAL_INT(5, result);
 }
 
+void test_squareRoot_negativeNumber(void)
+{
+    /* arrange */
+    int number = -5;
+
+    /* act */
+    int result = squareRoot(number);
 
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(0, result);
+}