src/test/java/com/google/android/libraries/feed/common/concurrent/CancelableRunnableTaskTest.java

// Copyright 2019 The Feed Authors.
//
// 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 com.google.android.libraries.feed.common.concurrent;

import static com.google.common.truth.Truth.assertThat;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;

/** Tests of the {@link TaskQueue} class. */
@RunWith(RobolectricTestRunner.class)
public class CancelableRunnableTaskTest {
  private boolean wasRun;
  private CancelableRunnableTask cancelable;

  @Before
  public void setUp() {
    cancelable =
        new CancelableRunnableTask(
            () -> {
              wasRun = true;
            });
  }

  @Test
  public void testRunnableCanceled_notCanceled() {
    cancelable.run();

    assertThat(wasRun).isTrue();
  }

  @Test
  public void testRunnableCanceled_canceled() {
    cancelable.cancel();
    cancelable.run();

    assertThat(wasRun).isFalse();
  }
}