Refector xml file name of spring namespace test

import static org.junit.Assert.assertThat;

import static org.junit.Assert.assertTrue;

@ContextConfiguration(locations = "classpath:META-INF/rdb/testMasterSlaveNamespace.xml")

@ContextConfiguration(locations = "classpath:META-INF/rdb/masterSlaveNamespace.xml")

public class MasterSlaveNamespaceTest extends AbstractJUnit4SpringContextTests {

    @Test

import java.util.Arrays;

import java.util.Iterator;

@ContextConfiguration(locations = "classpath:META-INF/rdb/testShardingNamespace.xml")

@ContextConfiguration(locations = "classpath:META-INF/rdb/shardingNamespace.xml")

public class ShardingNamespaceTest extends AbstractJUnit4SpringContextTests {

    @Test