@Test(timeout = 10000)
public void testGetApplicationReport() throws YarnException, IOException {
Configuration conf = new Configuration();
final AHSClient client = new MockAHSClient();
client.init(conf);
client.start();
List<ApplicationReport> expectedReports =
((MockAHSClient) client).getReports();
ApplicationId applicationId = ApplicationId.newInstance(1234, 5);
ApplicationReport report = client.getApplicationReport(applicationId);