/*
* Copyright (C) 2017 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 android.util;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class IntArrayTest {
@Test
public void testIntArray() {
IntArray a = new IntArray();
a.add(1);
a.add(2);
a.add(3);
verify(new int[]{1, 2, 3}, a);
IntArray b = IntArray.fromArray(new int[]{4, 5, 6, 7, 8}, 3);
a.addAll(b);
verify(new int[]{1, 2, 3, 4, 5, 6}, a);
a.resize(2);
verify(new int[]{1, 2}, a);
a.resize(8);
verify(new int[]{1, 2, 0, 0, 0, 0, 0, 0}, a);
a.set(5, 10);
verify(new int[]{1, 2, 0, 0, 0, 10, 0, 0}, a);
a.add(5, 20);
assertEquals(20, a.get(5));
assertEquals(5, a.indexOf(20));
verify(new int[]{1, 2, 0, 0, 0, 20, 10, 0, 0}, a);
assertEquals(-1, a.indexOf(99));
a.resize(15);
a.set(14, 30);
verify(new int[]{1, 2, 0, 0, 0, 20, 10, 0, 0, 0, 0, 0, 0, 0, 30}, a);
int[] backingArray = new int[]{1, 2, 3, 4};
a = IntArray.wrap(backingArray);
a.set(0, 10);
assertEquals(10, backingArray[0]);
backingArray[1] = 20;
backingArray[2] = 30;
verify(backingArray, a);
assertEquals(2, a.indexOf(30));
a.resize(2);
assertEquals(0, backingArray[2]);
assertEquals(0, backingArray[3]);
a.add(50);
verify(new int[]{10, 20, 50}, a);
}
public void verify(int[] expected, IntArray intArray) {
assertEquals(expected.length, intArray.size());
assertArrayEquals(expected, intArray.toArray());
}
}