content: /*
   * Copyright (C) 2015 The Android Open Source Project
   *
   * 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 androidx.test;
  
  import static org.hamcrest.core.Is.is;
  import static org.hamcrest.core.IsEqual.equalTo;
  import static org.junit.Assert.assertThat;
  import static org.junit.Assert.fail;
  
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import androidx.test.filters.SmallTest;
  import org.junit.Test;
  import org.junit.experimental.categories.Categories;
  import org.junit.experimental.categories.Category;
  import org.junit.runner.JUnitCore;
  import org.junit.runner.Result;
  import org.junit.runner.RunWith;
  import org.junit.runners.Suite;
  
  @RunWith(AndroidJUnit4.class)
  @SmallTest
  public class JUnit4CategoryTest {
  
    public interface FastTests {
      /* category marker */
    }
  
    public interface SlowTests {
      /* category marker */
    }
  
    public static class A {
      @Test
      public void a() {
        fail();
      }
  
      @Category(SlowTests.class)
      @Test
      public void b() {}
    }
  
    @Category({SlowTests.class, FastTests.class})
    public static class B {
      @Test
      public void c() {}
    }
  
    @RunWith(Categories.class)
    @Categories.IncludeCategory(SlowTests.class)
    @Suite.SuiteClasses({A.class, B.class}) // Note that Categories is a kind of Suite
    public static final class SlowTestSuite {
      // Will run A.b and B.c, but not A.a
    }
  
    @RunWith(Categories.class)
    @Categories.IncludeCategory(SlowTests.class)
    @Categories.ExcludeCategory(FastTests.class)
    @Suite.SuiteClasses({A.class, B.class}) // Note that Categories is a kind of Suite
    public static final class SlowTestNoFastTestSuite {
      // Will run A.b, but not A.a or B.c
    }
  
    /** This test is mentioned in {@code Categories} and any changes must be reflected. */
    @Test
    public void runSlowTestSuite() {
      // Targeting Test:
      Result testResult = JUnitCore.runClasses(SlowTestSuite.class);
  
      assertThat("unexpected run count", testResult.getRunCount(), is(equalTo(2)));
      assertThat("unexpected failure count", testResult.getFailureCount(), is(equalTo(0)));
      assertThat("unexpected failure count", testResult.getIgnoreCount(), is(equalTo(0)));
    }
  
    @Test
    public void runSlowTestNoFastTestSuite() {
      // Targeting Test:
      Result testResult = JUnitCore.runClasses(SlowTestNoFastTestSuite.class);
  
      assertThat("unexpected run count", testResult.getRunCount(), is(equalTo(1)));
      assertThat("unexpected failure count", testResult.getFailureCount(), is(equalTo(0)));
      assertThat("unexpected failure count", testResult.getIgnoreCount(), is(equalTo(0)));
    }
  }
  