content: /*
   * 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.metrics;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertThat;
  
  import alluxio.client.cli.fsadmin.AbstractFsAdminShellTest;
  import alluxio.client.file.FileSystemTestUtils;
  import alluxio.grpc.WritePType;
  
  import org.hamcrest.CoreMatchers;
  import org.junit.Test;
  
  import java.io.IOException;
  
  /**
   * Integration tests for the metrics command.
   */
  public final class MetricsCommandIntegrationTest extends AbstractFsAdminShellTest {
    @Test
    public void clearLeadingMasterMetrics() throws IOException {
      FileSystemTestUtils.createByteFile(mLocalAlluxioCluster.getClient(),
          "/file", WritePType.MUST_CACHE, 10);
  
      int errCode = mFsAdminShell.run("report", "metrics");
      assertEquals("", mErrOutput.toString());
      assertEquals(0, errCode);
      assertThat(mOutput.toString(), CoreMatchers.containsString(
          "CreateFileOps  (Type: COUNTER, Value: 1)"));
  
      errCode = mFsAdminShell.run("metrics", "clear", "--master");
      assertEquals("", mErrOutput.toString());
      assertEquals(0, errCode);
  
      mOutput.reset();
      errCode = mFsAdminShell.run("report", "metrics");
      assertEquals("", mErrOutput.toString());
      assertEquals(0, errCode);
      assertThat(mOutput.toString(), CoreMatchers.containsString(
          "CreateFileOps  (Type: COUNTER, Value: 0)"));
    }
  }
  