diff --git a/test/test_inputHandler.c b/test/test_inputHandler.c
index 5cf92c7..e7bff29 100644
--- a/test/test_inputHandler.c
+++ b/test/test_inputHandler.c
@@ -15,4 +15,11 @@ void test_inputHandler_returntwoforinputminus(void) {
     int result;
     result = getOperationIdBySymbol('-');
     TEST_ASSERT_EQUAL_INT(expectedResult, result);
-}
\ No newline at end of file
+}
+
+void test_inputHandler_returnoneforinputplus(void) {
+    int expectedResult = 1;
+    int result;
+    result = getOperationIdBySymbol('+');
+    TEST_ASSERT_EQUAL_INT(expectedResult, result);
+}