alluxio-master-2.x/tests/src/test/java/alluxio/client/cli/fsadmin/command/MetricsCommandIntegrationTest.java
/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.client.cli.fsadmin.command;

import alluxio.client.cli.fsadmin.AbstractFsAdminShellTest;

import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.junit.Test;

/**
 * Tests for report metrics command.
 */
public final class MetricsCommandIntegrationTest extends AbstractFsAdminShellTest {
  @Test
  public void metrics() {
    int ret = mFsAdminShell.run("report", "metrics");
    Assert.assertEquals(0, ret);
    String output = mOutput.toString();
    checkMetricsResults(output);
  }

  /**
   * Checks if the metrics command output is valid.
   *
   * @param output the metrics command output
   */
  private void checkMetricsResults(String output) {
    Assert.assertThat(output, CoreMatchers
        .containsString("Cluster.BytesReadRemote  (Type: COUNTER, Value: 0B)"));
    Assert.assertThat(output, CoreMatchers
        .containsString("Cluster.BytesReadRemoteThroughput  (Type: GAUGE, Value: 0B/MIN)"));
  }
}
