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.beam.runners.core.metrics;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.is;
  
  import org.junit.Assert;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link DirtyStateTest}. */
  @RunWith(JUnit4.class)
  public class DirtyStateTest {
  
    private final DirtyState dirty = new DirtyState();
  
    @Test
    public void basicPath() {
      assertThat("Should start clean", dirty.beforeCommit(), is(false));
      dirty.afterModification();
  
      assertThat("Should be dirty after change ", dirty.beforeCommit(), is(true));
      dirty.afterCommit();
      assertThat("Should be clean after commit", dirty.beforeCommit(), is(false));
  
      dirty.afterModification();
      assertThat("Should be dirty after change", dirty.beforeCommit(), is(true));
      dirty.afterCommit();
      assertThat("Should be clean after commit", dirty.beforeCommit(), is(false));
    }
  
    @Test
    public void changeAfterBeforeCommit() {
      dirty.afterModification();
      dirty.afterCommit();
      assertThat(
          "Changes after beforeCommit should be dirty after afterCommit",
          dirty.beforeCommit(),
          is(true));
    }
  
    @Test
    public void testEquals() {
      DirtyState dirtyState = new DirtyState();
      DirtyState equal = new DirtyState();
      Assert.assertEquals(dirtyState, equal);
      Assert.assertEquals(dirtyState.hashCode(), equal.hashCode());
    }
  
    @Test
    public void testNotEquals() {
      DirtyState dirtyState = new DirtyState();
  
      Assert.assertNotEquals(dirtyState, new Object());
  
      DirtyState differentState = new DirtyState();
      differentState.afterModification();
      Assert.assertNotEquals(dirtyState, differentState);
      Assert.assertNotEquals(dirtyState.hashCode(), differentState.hashCode());
    }
  }
  