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 androidx.core.util 18 19import android.util.Pair 20import org.junit.Assert.assertEquals 21import org.junit.Assert.assertSame 22import org.junit.Test 23 24class PairTest { 25 @Test fun destructuringNonNull() { 26 val pair = Pair("one", "two") 27 val (first: String, second: String) = pair 28 assertSame(pair.first, first) 29 assertSame(pair.second, second) 30 } 31 32 @Test fun destructuringNullable() { 33 val pair = Pair("one", "two") 34 val (first: String?, second: String?) = pair 35 assertSame(pair.first, first) 36 assertSame(pair.second, second) 37 } 38 39 @Test fun toKotlin() { 40 val android = Pair("one", "two") 41 val kotlin = android.toKotlinPair() 42 assertEquals(android.first to android.second, kotlin) 43 } 44 45 @Test fun toAndroid() { 46 val kotlin = kotlin.Pair("one", "two") 47 val android = kotlin.toAndroidPair() 48 assertEquals(Pair(kotlin.first, kotlin.second), android) 49 } 50} 51