}
public void test_connectPropertiesChange() throws Exception {
Assert.assertTrue(dataSource.isWrapperFor(DruidDataSourceStatLogger.class));
Assert.assertTrue(dataSource.isWrapperFor(DruidDataSourceStatLoggerImpl.class));
DruidDataSourceStatLoggerImpl loggerImpl = dataSource.unwrap(DruidDataSourceStatLoggerImpl.class);
Assert.assertSame(statLog, loggerImpl.getLogger());
dataSource.setConnectionProperties("druid.stat.loggerName=xxx");
Assert.assertNotSame(statLog, loggerImpl.getLogger());
}