| /* |
| * Copyright 2020 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 androidx.ui.util |
| |
| import org.junit.Assert.assertEquals |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| class FastForEachTest { |
| @Test |
| fun regularIteration() { |
| val list = listOf(1, 5, 10) |
| val otherList = mutableListOf<Int>() |
| list.fastForEach { |
| otherList.add(it) |
| } |
| // The correct iteration order, all items in there |
| assertEquals(otherList, list) |
| } |
| |
| @Test |
| fun shortIteration() { |
| val list = listOf(1, 5, 10) |
| val otherList = mutableListOf<Int>() |
| list.fastForEach { |
| if (it == 5) { |
| return@fastForEach |
| } |
| otherList.add(it) |
| } |
| // Should have only one item in it |
| assertEquals(2, otherList.size) |
| assertEquals(1, otherList[0]) |
| assertEquals(10, otherList[1]) |
| } |
| } |