<error-code>429</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=busy</location>
  </error-page>
  <error-page>
    <error-code>500</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=systemError</location>
  </error-page>

    @Test
    public void test_Status_BAD_REQUEST() {
        assertEquals(1, Status.BAD_REQUEST.getId());
    }

    @Test
    public void test_Status_SYSTEM_ERROR() {
        assertEquals(2, Status.SYSTEM_ERROR.getId());
    }

        /** Successful response status. */
        OK(0),
        /** Bad request status indicating client error. */
        BAD_REQUEST(1),
        /** System error status indicating server error. */
        SYSTEM_ERROR(2),
        /** Unauthorized status indicating authentication failure. */
        UNAUTHORIZED(3),
        /** General failure status. */
        FAILED(9);

        private final int id;