@Test
public void testParseLong() {

    Assert.assertEquals(CommonUtils.parseLong("", 123L), 123L);
    Assert.assertEquals(CommonUtils.parseLong("xxx", 123L), 123L);
    Assert.assertEquals(CommonUtils.parseLong(null, 123L), 123L);
    Assert.assertEquals(CommonUtils.parseLong("12345", 123L), 12345L);
}