@Test
public void test() {

    String[] parameterNames;
    parameterNames = DISCOVERER.getParameterNames(CLASS_NO_PARAM_METHOD);
    Assert.assertTrue(CommonUtils.isEmpty(parameterNames));
    parameterNames = DISCOVERER.getParameterNames(CLASS_ONE_PARAM_METHOD);
    Assert.assertEquals("a", parameterNames[0]);
    parameterNames = DISCOVERER.getParameterNames(CLASS_MULTI_PARAM_METHOD);
    Assert.assertEquals("a", parameterNames[0]);
    Assert.assertEquals("b", parameterNames[1]);
}