content: /*
   * 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 io.airlift.testing;
  
  import org.junit.jupiter.api.Test;
  
  import java.time.Instant;
  
  import static java.util.concurrent.TimeUnit.SECONDS;
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class TestTestingClock
  {
      @Test
      public void test()
              throws Exception
      {
          TestingClock clock = new TestingClock();
  
          Instant instant1 = clock.instant();
  
          Thread.sleep(10);
          Instant instant2 = clock.instant();
  
          clock.increment(42, SECONDS);
          Instant instant3 = clock.instant();
  
          assertThat(instant2).isEqualTo(instant1);
          assertThat(instant3).isEqualTo(instant1.plusSeconds(42));
      }
  }
  