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/*
* 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());
}
}
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