1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.util;
18
19import static org.junit.Assert.assertArrayEquals;
20import static org.junit.Assert.assertEquals;
21
22import android.support.test.filters.SmallTest;
23import android.support.test.runner.AndroidJUnit4;
24import org.junit.Test;
25import org.junit.runner.RunWith;
26
27@RunWith(AndroidJUnit4.class)
28@SmallTest
29public class LongArrayTest {
30
31    @Test
32    public void testLongArray() {
33        LongArray a = new LongArray();
34        a.add(1);
35        a.add(2);
36        a.add(3);
37        verify(new long[]{1, 2, 3}, a);
38
39        LongArray b = LongArray.fromArray(new long[]{4, 5, 6, 7, 8}, 3);
40        a.addAll(b);
41        verify(new long[]{1, 2, 3, 4, 5, 6}, a);
42
43        a.resize(2);
44        verify(new long[]{1, 2}, a);
45
46        a.resize(8);
47        verify(new long[]{1, 2, 0, 0, 0, 0, 0, 0}, a);
48
49        a.set(5, 10);
50        verify(new long[]{1, 2, 0, 0, 0, 10, 0, 0}, a);
51
52        a.add(5, 20);
53        assertEquals(20, a.get(5));
54        assertEquals(5, a.indexOf(20));
55        verify(new long[]{1, 2, 0, 0, 0, 20, 10, 0, 0}, a);
56
57        assertEquals(-1, a.indexOf(99));
58
59        a.resize(15);
60        a.set(14, 30);
61        verify(new long[]{1, 2, 0, 0, 0, 20, 10, 0, 0, 0, 0, 0, 0, 0, 30}, a);
62
63        long[] backingArray = new long[]{1, 2, 3, 4};
64        a = LongArray.wrap(backingArray);
65        a.set(0, 10);
66        assertEquals(10, backingArray[0]);
67        backingArray[1] = 20;
68        backingArray[2] = 30;
69        verify(backingArray, a);
70        assertEquals(2, a.indexOf(30));
71
72        a.resize(2);
73        assertEquals(0, backingArray[2]);
74        assertEquals(0, backingArray[3]);
75
76        a.add(50);
77        verify(new long[]{10, 20, 50}, a);
78    }
79
80    public void verify(long[] expected, LongArray longArrays) {
81        assertEquals(expected.length, longArrays.size());
82        assertArrayEquals(expected, longArrays.toArray());
83    }
84}
85