content: /*
   * Copyright (C) 2018 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 com.android.launcher3.util;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  import org.robolectric.RobolectricTestRunner;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Robolectric unit tests for {@link IntSet}
   */
  @RunWith(RobolectricTestRunner.class)
  public class IntSetTest {
  
      @Test
      public void shouldBeEmptyInitially() {
          IntSet set = new IntSet();
          assertThat(set.size()).isEqualTo(0);
      }
  
      @Test
      public void oneElementSet() {
          IntSet set = new IntSet();
          set.add(2);
          assertThat(set.size()).isEqualTo(1);
          assertTrue(set.contains(2));
          assertFalse(set.contains(1));
      }
  
  
      @Test
      public void twoElementSet() {
          IntSet set = new IntSet();
          set.add(2);
          set.add(1);
          assertThat(set.size()).isEqualTo(2);
          assertTrue(set.contains(2));
          assertTrue(set.contains(1));
      }
  
      @Test
      public void threeElementSet() {
          IntSet set = new IntSet();
          set.add(2);
          set.add(1);
          set.add(10);
          assertThat(set.size()).isEqualTo(3);
          assertEquals("1, 2, 10", set.mArray.toConcatString());
      }
  
  
      @Test
      public void duplicateEntries() {
          IntSet set = new IntSet();
          set.add(2);
          set.add(2);
          assertEquals(1, set.size());
      }
  }
  