code: /**
   * This file is part of Eclipse Steady.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.shared.util;
  
  import static org.junit.Assert.assertTrue;
  
  import org.junit.Test;
  
  public class StopWatchTest {
  
    @Test
    public void testGetRuntimeMillis() {
      final StopWatch sw = new StopWatch("foo").start();
      sw.lap("bar", false); // Should not be printed due to threshold
      try {
        Thread.sleep(1000);
      } catch (InterruptedException e) {
      }
      sw.lap("baz", true);
      sw.stop();
      final long rt = sw.getRuntimeMillis();
      assertTrue(rt < 50000);
    }
  
    @Test
    public void testProgressTracker() {
      int total = 67;
      final StopWatch sw = new StopWatch("foo").setTotal(total).start();
      for (int i = 0; i < total; i++) {
        try {
          Thread.sleep(Math.round(Math.random() * 178));
          sw.progress(); // log messages every 5%
        } catch (InterruptedException e) {
        }
      }
      sw.stop();
      System.out.println(
          "Avg lap time: "
              + StringUtil.nanoToFlexDurationString(sw.getAvgLapTime())
              + ", max lap time: "
              + StringUtil.nanoToFlexDurationString(sw.getMaxLapTime()));
    }
  }
  