@Test
public void getDefaultFsUrl() throws Exception {

    HDFSMetadataService hdfsMetadataService = new HDFSMetadataService(configuration);
    new Expectations() {{
        configuration.get(HDFSMetadataService.CONFIG_KEY_DEFAULT_FS);
        result = TEST_FS_URL;
    }};
    Assert.assertEquals(TEST_FS_URL, hdfsMetadataService.getDefaultFsUrl());
}