@Test
 public void testIsShowDataSources() {
   Assert.assertEquals(ServerParseShow.DATASOURCES, ServerParseShow.parse("show datasources", 4));
   Assert.assertEquals(ServerParseShow.DATASOURCES, ServerParseShow.parse("SHOW DATASOURCES", 4));
   Assert.assertEquals(
       ServerParseShow.DATASOURCES, ServerParseShow.parse("  SHOW   DATASOURCES  ", 6));
 }
 @Test
 public void testShowMycatCluster() {
   Assert.assertEquals(
       ServerParseShow.MYCAT_CLUSTER, ServerParseShow.parse("show mycat_cluster", 4));
   Assert.assertEquals(
       ServerParseShow.MYCAT_CLUSTER, ServerParseShow.parse("Show mycat_CLUSTER ", 4));
   Assert.assertEquals(
       ServerParseShow.MYCAT_CLUSTER, ServerParseShow.parse(" show  MYCAT_cluster", 5));
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse(" show mycat_clust", 5));
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse(" show mycat_cluster2", 5));
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse("Show mycat_cluster9 ", 4));
 }
 @Test
 public void testShowMycatStatus() {
   Assert.assertEquals(
       ServerParseShow.MYCAT_STATUS, ServerParseShow.parse("show mycat_status", 4));
   Assert.assertEquals(
       ServerParseShow.MYCAT_STATUS, ServerParseShow.parse("show mycat_status ", 4));
   Assert.assertEquals(
       ServerParseShow.MYCAT_STATUS,
       ServerParseShow.parse(" SHOW MYCAT_STATUS", " SHOW".length()));
   Assert.assertEquals(
       ServerParseShow.OTHER, ServerParseShow.parse(" show mycat_statu", " SHOW".length()));
   Assert.assertEquals(
       ServerParseShow.OTHER, ServerParseShow.parse(" show mycat_status2", " SHOW".length()));
   Assert.assertEquals(
       ServerParseShow.OTHER, ServerParseShow.parse("Show mycat_status2 ", "SHOW".length()));
 }
 @Test
 public void testIsShowOther() {
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse("show ...", 4));
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse("SHOW ...", 4));
   Assert.assertEquals(ServerParseShow.OTHER, ServerParseShow.parse("SHOW ... ", 4));
 }
 @Test
 public void testIsShowDatabases() {
   Assert.assertEquals(ServerParseShow.DATABASES, ServerParseShow.parse("show databases", 4));
   Assert.assertEquals(ServerParseShow.DATABASES, ServerParseShow.parse("SHOW DATABASES", 4));
   Assert.assertEquals(ServerParseShow.DATABASES, ServerParseShow.parse("SHOW databases ", 4));
 }