content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.kafka.server.quota;
  
  import org.apache.kafka.common.utils.MockTime;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class ThrottledChannelTest {
  
      private final MockTime time = new MockTime();
      private final ThrottleCallback callback = new ThrottleCallback() {
          @Override
          public void startThrottling() {
          }
  
          @Override
          public void endThrottling() {
          }
      };
  
      @Test
      public void testThrottledChannelDelay() {
          ThrottledChannel channel1 = new ThrottledChannel(time, 10, callback);
          ThrottledChannel channel2 = new ThrottledChannel(time, 20, callback);
          ThrottledChannel channel3 = new ThrottledChannel(time, 20, callback);
          assertEquals(10, channel1.throttleTimeMs());
          assertEquals(20, channel2.throttleTimeMs());
          assertEquals(20, channel3.throttleTimeMs());
  
          for (int i = 0; i <= 2; i++) {
              assertEquals(10 - 10 * i, channel1.getDelay(TimeUnit.MILLISECONDS));
              assertEquals(20 - 10 * i, channel2.getDelay(TimeUnit.MILLISECONDS));
              assertEquals(20 - 10 * i, channel3.getDelay(TimeUnit.MILLISECONDS));
              time.sleep(10);
          }
      }
  }
  