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/*
* Copyright (C) 2022 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 com.android.net.module.util.ByteUtils.indexOf
import com.android.net.module.util.ByteUtils.concat
import org.junit.Test
import kotlin.test.assertContentEquals
import kotlin.test.assertEquals
import kotlin.test.assertNotSame
class ByteUtilsTests {
private val EMPTY = byteArrayOf()
private val ARRAY1 = byteArrayOf(1)
private val ARRAY234 = byteArrayOf(2, 3, 4)
@Test
fun testIndexOf() {
assertEquals(-1, indexOf(EMPTY, 1))
assertEquals(-1, indexOf(ARRAY1, 2))
assertEquals(-1, indexOf(ARRAY234, 1))
assertEquals(0, indexOf(byteArrayOf(-1), -1))
assertEquals(0, indexOf(ARRAY234, 2))
assertEquals(1, indexOf(ARRAY234, 3))
assertEquals(2, indexOf(ARRAY234, 4))
assertEquals(1, indexOf(byteArrayOf(2, 3, 2, 3), 3))
}
@Test
fun testConcat() {
assertContentEquals(EMPTY, concat())
assertContentEquals(EMPTY, concat(EMPTY))
assertContentEquals(EMPTY, concat(EMPTY, EMPTY, EMPTY))
assertContentEquals(ARRAY1, concat(ARRAY1))
assertNotSame(ARRAY1, concat(ARRAY1))
assertContentEquals(ARRAY1, concat(EMPTY, ARRAY1, EMPTY))
assertContentEquals(byteArrayOf(1, 1, 1), concat(ARRAY1, ARRAY1, ARRAY1))
assertContentEquals(byteArrayOf(1, 2, 3, 4), concat(ARRAY1, ARRAY234))
}
}
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