content: /*
   * Copyright (C) 2012 The Android Open Source Project
   *
   * 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.
   */
  package androidx.test.internal.runner.listener;
  
  import android.util.Log;
  import org.junit.runner.Description;
  import org.junit.runner.notification.RunListener;
  
  /** A {@link org.junit.runner.notification.RunListener} that injects a given delay between tests. */
  public class DelayInjector extends RunListener {
  
    private final int delayMsec;
  
    /** @param delayMsec */
    public DelayInjector(int delayMsec) {
      this.delayMsec = delayMsec;
    }
  
    @Override
    public void testRunStarted(Description description) throws Exception {
      // delay before first test
      delay();
    }
  
    @Override
    public void testFinished(Description description) throws Exception {
      // delay after every test
      delay();
    }
  
    private void delay() {
      try {
        Thread.sleep(delayMsec);
      } catch (InterruptedException e) {
        Log.e("DelayInjector", "interrupted", e);
      }
    }
  }
  