@Test
public void testWriteObjectAsString(){

        String expectedJsonString = "{\"statusCode\":200,\"msgDesc\":\"Logout Successful\"}";
        VXResponse vXResponse = new VXResponse();
        vXResponse.setStatusCode(HttpServletResponse.SC_OK);
        vXResponse.setMsgDesc("Logout Successful");
        String actualJsonString = jsonUtil.writeObjectAsString(vXResponse);
        Assert.assertEquals(expectedJsonString, actualJsonString);
}