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android / platform / frameworks / support / 4dc4dac506f66d61fff03f2e2e327c21f22c769f / . / ui / ui-layout / src / androidAndroidTest / kotlin / androidx / compose / foundation / layout / LayoutAspectRatioTest.kt
blob: 5b88089b4fb56670297c83ee947f302860ab9447 [file] [log] [blame]
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]1/*
2 * Copyright 2019 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
Louis Pullen-Freilich623e4052020-07-19 20:24:03 +0100[diff] [blame]17package androidx.compose.foundation.layout
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]18
Leland Richardsona5396b42019-10-11 17:34:55 -0700[diff] [blame]19import androidx.compose.Composable
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]20import androidx.test.filters.SmallTest
21import androidx.ui.core.Constraints
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]22import androidx.ui.core.Layout
Adam Powell999a89b2020-03-11 09:08:07 -0700[diff] [blame]23import androidx.ui.core.Modifier
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]24import androidx.ui.core.Ref
Louis Pullen-Freilichf434a132020-07-22 14:19:24 +0100[diff] [blame]25import androidx.compose.ui.geometry.Offset
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]26import androidx.ui.unit.IntSize
George Mount842c8c12020-01-08 16:03:42 -0800[diff] [blame]27import androidx.ui.unit.dp
George Mount8baef7a2020-01-21 13:40:57 -0800[diff] [blame]28import org.junit.Assert.assertEquals
Mihai Popa2554ba82020-03-13 19:03:52 +0000[diff] [blame]29import org.junit.Assert.assertTrue
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]30import org.junit.Test
31import org.junit.runner.RunWith
32import org.junit.runners.JUnit4
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]33import java.util.concurrent.CountDownLatch
34import java.util.concurrent.TimeUnit
35
36@SmallTest
37@RunWith(JUnit4::class)
Mihai Popac9af2882020-03-16 17:55:00 +0000[diff] [blame]38class LayoutAspectRatioTest : LayoutTest() {
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]39 @Test
Andrey Kulikov47f0e1a2020-01-28 13:52:46 +0000[diff] [blame]40 fun testAspectRatioModifier_intrinsicDimensions() = with(density) {
Leland Richardsona5396b42019-10-11 17:34:55 -0700[diff] [blame]41 testIntrinsics(@Composable {
Adam Powell999a89b2020-03-11 09:08:07 -0700[diff] [blame]42 Container(modifier = Modifier.aspectRatio(2f), width = 30.dp, height = 40.dp) { }
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]43 }) { minIntrinsicWidth, minIntrinsicHeight, maxIntrinsicWidth, maxIntrinsicHeight ->
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]44 assertEquals(40, minIntrinsicWidth(20))
45 assertEquals(40, maxIntrinsicWidth(20))
46 assertEquals(20, minIntrinsicHeight(40))
47 assertEquals(20, maxIntrinsicHeight(40))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]48
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]49 assertEquals(30.dp.toIntPx(), minIntrinsicWidth(Constraints.Infinity))
50 assertEquals(30.dp.toIntPx(), maxIntrinsicWidth(Constraints.Infinity))
51 assertEquals(40.dp.toIntPx(), minIntrinsicHeight(Constraints.Infinity))
52 assertEquals(40.dp.toIntPx(), maxIntrinsicHeight(Constraints.Infinity))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]53 }
54 }
55
56 @Test(expected = IllegalArgumentException::class)
57 fun testAspectRatioModifier_zeroRatio() {
Adam Powell999a89b2020-03-11 09:08:07 -0700[diff] [blame]58 Modifier.aspectRatio(0f)
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]59 }
60
61 @Test(expected = IllegalArgumentException::class)
62 fun testAspectRatioModifier_negativeRatio() {
Adam Powell999a89b2020-03-11 09:08:07 -0700[diff] [blame]63 Modifier.aspectRatio(-2f)
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]64 }
65
66 @Test
67 fun testAspectRatio_sizesCorrectly() {
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]68 assertEquals(IntSize(30, 30), getSize(1f, Constraints(maxWidth = 30)))
69 assertEquals(IntSize(30, 15), getSize(2f, Constraints(maxWidth = 30)))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]70 assertEquals(
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]71 IntSize(10, 10),
72 getSize(1f, Constraints(maxWidth = 30, maxHeight = 10))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]73 )
74 assertEquals(
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]75 IntSize(20, 10),
76 getSize(2f, Constraints(maxWidth = 30, maxHeight = 10))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]77 )
78 assertEquals(
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]79 IntSize(10, 5),
80 getSize(2f, Constraints(minWidth = 10, minHeight = 5))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]81 )
82 assertEquals(
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]83 IntSize(20, 10),
84 getSize(2f, Constraints(minWidth = 5, minHeight = 10))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]85 )
86 }
87
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]88 private fun getSize(aspectRatio: Float, childContraints: Constraints): IntSize {
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]89 val positionedLatch = CountDownLatch(1)
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]90 val size = Ref<IntSize>()
Nader Jawad6df06122020-06-03 15:27:08 -0700[diff] [blame]91 val position = Ref<Offset>()
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]92 show {
Leland Richardsona5396b42019-10-11 17:34:55 -0700[diff] [blame]93 Layout(@Composable {
Adam Powell999a89b2020-03-11 09:08:07 -0700[diff] [blame]94 Container(
95 Modifier.aspectRatio(aspectRatio) +
96 Modifier.saveLayoutInfo(size, position, positionedLatch)
George Mount5e1d3f12020-03-09 17:28:35 -0700[diff] [blame]97 ) {
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]98 }
Anastasia Soboleva5e382dd2020-06-17 21:51:38 +0100[diff] [blame]99 }) { measurables, incomingConstraints ->
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]100 require(measurables.isNotEmpty())
101 val placeable = measurables.first().measure(childContraints)
102 layout(incomingConstraints.maxWidth, incomingConstraints.maxHeight) {
George Mount8f237572020-04-30 12:08:30 -0700[diff] [blame]103 placeable.place(0, 0)
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]104 }
105 }
106 }
Mihai Popa2554ba82020-03-13 19:03:52 +0000[diff] [blame]107 assertTrue(positionedLatch.await(1, TimeUnit.SECONDS))
Anastasia Soboleva1de1d102019-09-30 16:48:31 +0100[diff] [blame]108 return size.value!!
109 }
110}