1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) 2021 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.net.module.util
import androidx.test.filters.SmallTest
import androidx.test.runner.AndroidJUnit4
import com.android.testutils.assertThrows
import org.junit.Test
import org.junit.runner.RunWith
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import kotlin.test.assertFalse
import kotlin.test.assertNull
import kotlin.test.assertSame
import kotlin.test.assertTrue
@RunWith(AndroidJUnit4::class)
@SmallTest
class CollectionUtilsTest {
@Test
fun testAny() {
assertTrue(CollectionUtils.any(listOf("A", "B", "C", "D", "E")) { it == "E" })
assertFalse(CollectionUtils.any(listOf("A", "B", "C", "D", "E")) { it == "F" })
assertTrue(CollectionUtils.any(listOf("AA", "BBB")) { it.length >= 3 })
assertFalse(CollectionUtils.any(listOf("A", "BB", "CCC")) { it.length >= 4 })
assertFalse(CollectionUtils.any(listOf("A", "BB", "CCC")) { it.length < 0 })
assertFalse(CollectionUtils.any(listOf<String>()) { true })
assertFalse(CollectionUtils.any(listOf<String>()) { false })
assertTrue(CollectionUtils.any(listOf("A")) { true })
assertFalse(CollectionUtils.any(listOf("A")) { false })
}
@Test
fun testIndexOf() {
assertEquals(4, CollectionUtils.indexOf(listOf("A", "B", "C", "D", "E")) { it == "E" })
assertEquals(0, CollectionUtils.indexOf(listOf("A", "B", "C", "D", "E")) { it == "A" })
assertEquals(1, CollectionUtils.indexOf(listOf("AA", "BBB", "CCCC")) { it.length >= 3 })
assertEquals(1, CollectionUtils.indexOf(listOf("AA", null, "CCCC")) { it == null })
assertEquals(1, CollectionUtils.indexOf(listOf(null, "CCCC")) { it != null })
}
@Test
fun testIndexOfSubArray() {
val haystack = byteArrayOf(1, 2, 3, 4, 5)
assertEquals(2, CollectionUtils.indexOfSubArray(haystack, byteArrayOf(3, 4)))
assertEquals(3, CollectionUtils.indexOfSubArray(haystack, byteArrayOf(4, 5)))
assertEquals(4, CollectionUtils.indexOfSubArray(haystack, byteArrayOf(5)))
assertEquals(-1, CollectionUtils.indexOfSubArray(haystack, byteArrayOf(3, 2)))
assertEquals(0, CollectionUtils.indexOfSubArray(haystack, byteArrayOf()))
assertEquals(-1, CollectionUtils.indexOfSubArray(byteArrayOf(), byteArrayOf(3, 2)))
assertEquals(0, CollectionUtils.indexOfSubArray(byteArrayOf(), byteArrayOf()))
}
@Test
fun testAll() {
assertFalse(CollectionUtils.all(listOf("A", "B", "C", "D", "E")) { it != "E" })
assertTrue(CollectionUtils.all(listOf("A", "B", "C", "D", "E")) { it != "F" })
assertFalse(CollectionUtils.all(listOf("A", "BB", "CCC")) { it.length > 2 })
assertTrue(CollectionUtils.all(listOf("A", "BB", "CCC")) { it.length >= 1 })
assertTrue(CollectionUtils.all(listOf("A", "BB", "CCC")) { it.length < 4 })
assertTrue(CollectionUtils.all(listOf<String>()) { true })
assertTrue(CollectionUtils.all(listOf<String>()) { false })
assertTrue(CollectionUtils.all(listOf(1)) { true })
assertFalse(CollectionUtils.all(listOf(1)) { false })
}
@Test
fun testContains() {
assertTrue(CollectionUtils.contains(shortArrayOf(10, 20, 30), 10))
assertTrue(CollectionUtils.contains(shortArrayOf(10, 20, 30), 30))
assertFalse(CollectionUtils.contains(shortArrayOf(10, 20, 30), 40))
assertFalse(CollectionUtils.contains(null, 10.toShort()))
assertTrue(CollectionUtils.contains(intArrayOf(10, 20, 30), 10))
assertTrue(CollectionUtils.contains(intArrayOf(10, 20, 30), 30))
assertFalse(CollectionUtils.contains(intArrayOf(10, 20, 30), 40))
assertFalse(CollectionUtils.contains(null, 10.toInt()))
assertTrue(CollectionUtils.contains(arrayOf("A", "B", "C"), "A"))
assertTrue(CollectionUtils.contains(arrayOf("A", "B", "C"), "C"))
assertFalse(CollectionUtils.contains(arrayOf("A", "B", "C"), "D"))
assertFalse(CollectionUtils.contains(null, "A"))
val list = listOf("A", "B", "Ab", "C", "D", "E", "A", "E")
assertTrue(CollectionUtils.contains(list) { it.length == 2 })
assertFalse(CollectionUtils.contains(list) { it.length < 1 })
assertTrue(CollectionUtils.contains(list) { it > "A" })
assertFalse(CollectionUtils.contains(list) { it > "F" })
}
@Test
fun testTotal() {
assertEquals(10, CollectionUtils.total(longArrayOf(3, 6, 1)))
assertEquals(10, CollectionUtils.total(longArrayOf(6, 1, 3)))
assertEquals(10, CollectionUtils.total(longArrayOf(1, 3, 6)))
assertEquals(3, CollectionUtils.total(longArrayOf(1, 1, 1)))
assertEquals(0, CollectionUtils.total(null))
}
@Test
fun testFindFirstFindLast() {
val listAE = listOf("A", "B", "C", "D", "E")
assertSame(CollectionUtils.findFirst(listAE) { it == "A" }, listAE[0])
assertSame(CollectionUtils.findFirst(listAE) { it == "B" }, listAE[1])
assertSame(CollectionUtils.findFirst(listAE) { it == "E" }, listAE[4])
assertNull(CollectionUtils.findFirst(listAE) { it == "F" })
assertSame(CollectionUtils.findLast(listAE) { it == "A" }, listAE[0])
assertSame(CollectionUtils.findLast(listAE) { it == "B" }, listAE[1])
assertSame(CollectionUtils.findLast(listAE) { it == "E" }, listAE[4])
assertNull(CollectionUtils.findLast(listAE) { it == "F" })
val listMulti = listOf("A", "B", "A", "C", "D", "E", "A", "E")
assertSame(CollectionUtils.findFirst(listMulti) { it == "A" }, listMulti[0])
assertSame(CollectionUtils.findFirst(listMulti) { it == "B" }, listMulti[1])
assertSame(CollectionUtils.findFirst(listMulti) { it == "E" }, listMulti[5])
assertNull(CollectionUtils.findFirst(listMulti) { it == "F" })
assertSame(CollectionUtils.findLast(listMulti) { it == "A" }, listMulti[6])
assertSame(CollectionUtils.findLast(listMulti) { it == "B" }, listMulti[1])
assertSame(CollectionUtils.findLast(listMulti) { it == "E" }, listMulti[7])
assertNull(CollectionUtils.findLast(listMulti) { it == "F" })
}
@Test
fun testMap() {
val listAE = listOf("A", "B", "C", "D", "E", null)
assertEquals(listAE.map { "-$it-" }, CollectionUtils.map(listAE) { "-$it-" })
}
@Test
fun testZip() {
val listAE = listOf("A", "B", "C", "D", "E")
val list15 = listOf(1, 2, 3, 4, 5)
// Normal #zip returns kotlin.Pair, not android.util.Pair
assertEquals(list15.zip(listAE).map { android.util.Pair(it.first, it.second) },
CollectionUtils.zip(list15, listAE))
val listNull = listOf("A", null, "B", "C", "D")
assertEquals(list15.zip(listNull).map { android.util.Pair(it.first, it.second) },
CollectionUtils.zip(list15, listNull))
assertEquals(emptyList<android.util.Pair<Int, Int>>(),
CollectionUtils.zip(emptyList<Int>(), emptyList<Int>()))
assertFailsWith<IllegalArgumentException> {
// Different size
CollectionUtils.zip(listOf(1, 2), list15)
}
}
@Test
fun testAssoc() {
val listADA = listOf("A", "B", "C", "D", "A")
val list15 = listOf(1, 2, 3, 4, 5)
assertEquals(list15.zip(listADA).toMap(), CollectionUtils.assoc(list15, listADA))
// Null key is fine
val assoc = CollectionUtils.assoc(listOf(1, 2, null), listOf("A", "B", "C"))
assertEquals("C", assoc[null])
assertFailsWith<IllegalArgumentException> {
// Same key multiple times
CollectionUtils.assoc(listOf("A", "B", "A"), listOf(1, 2, 3))
}
assertFailsWith<IllegalArgumentException> {
// Same key multiple times, but it's null
CollectionUtils.assoc(listOf(null, "B", null), listOf(1, 2, 3))
}
assertFailsWith<IllegalArgumentException> {
// Different size
CollectionUtils.assoc(listOf(1, 2), list15)
}
}
}
|
