| /* |
| * 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()); |
| } |
| } |