content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * 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
   *
   * https://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.agrona.concurrent;
  
  import org.junit.jupiter.api.Test;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.is;
  
  class CachedClockTest
  {
      @Test
      void shouldUpdateNanoClock()
      {
          final long timestamp = 777L;
  
          final CachedNanoClock clock = new CachedNanoClock();
          assertThat(clock.nanoTime(), is(0L));
  
          clock.update(timestamp);
          assertThat(clock.nanoTime(), is(timestamp));
      }
  
      @Test
      void shouldUpdateEpochClock()
      {
          final long timestamp = 333L;
  
          final CachedEpochClock clock = new CachedEpochClock();
          assertThat(clock.time(), is(0L));
  
          clock.update(timestamp);
          assertThat(clock.time(), is(timestamp));
      }
  }
  