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.retry;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import org.junit.Test;
  
  /**
   * Tests for the {@link TimeoutRetry} class.
   */
  public final class TimeoutRetryTest {
  
    /**
     * Tests that the provided timeout is respected.
     */
    @Test
    public void timeout() {
      final long timeoutMs = 50;
      final int sleepMs = 10;
      int attempts = 0;
      TimeoutRetry timeoutRetry = new TimeoutRetry(timeoutMs, sleepMs);
      assertEquals(0, timeoutRetry.getAttemptCount());
      long startMs = System.currentTimeMillis();
      while (timeoutRetry.attempt()) {
        attempts++;
      }
      long endMs = System.currentTimeMillis();
      assertTrue(attempts > 0);
      assertTrue((endMs - startMs) >= timeoutMs);
      assertEquals(attempts, timeoutRetry.getAttemptCount());
      assertTrue(attempts <= (timeoutMs / sleepMs) + 1);
    }
  }
  