| /* |
| * Copyright 2019 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.layout.test |
| |
| import androidx.test.filters.SmallTest |
| import androidx.ui.core.Constraints |
| import androidx.ui.core.HorizontalAlignmentLine |
| import androidx.ui.core.Layout |
| import androidx.ui.core.Ref |
| import androidx.ui.core.VerticalAlignmentLine |
| import androidx.ui.core.WithConstraints |
| import androidx.ui.layout.AlignmentLineOffset |
| import androidx.ui.layout.CenterAlignmentLine |
| import androidx.ui.layout.DpConstraints |
| import androidx.ui.layout.Wrap |
| import androidx.ui.unit.IntPxSize |
| import androidx.ui.unit.PxPosition |
| import androidx.ui.unit.dp |
| import androidx.ui.unit.ipx |
| import androidx.ui.unit.min |
| import androidx.ui.unit.px |
| import androidx.ui.unit.toPx |
| import org.junit.Assert |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.CountDownLatch |
| import java.util.concurrent.TimeUnit |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class AlignmentLineTest : LayoutTest() { |
| @Test |
| fun testAlignmentLineOffset_vertical() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = VerticalAlignmentLine(::min) |
| val beforeDp = 20.px.toDp() |
| val afterDp = 40.px.toDp() |
| val childDp = 30.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(childSize, childPosition, layoutLatch) }) { _, _, _ -> |
| layout(childDp.toIntPx(), 0.ipx, mapOf(testLine to lineDp.toIntPx())) { } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertEquals( |
| beforeDp.toIntPx() + afterDp.toIntPx(), |
| parentSize.value!!.width |
| ) |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value!!.height, parentSize.value!!.height) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals( |
| beforeDp.toIntPx().toPx() - lineDp.toIntPx().toPx(), |
| childPosition.value!!.x |
| ) |
| Assert.assertEquals(0.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_horizontal() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = HorizontalAlignmentLine(::min) |
| val beforeDp = 20.px.toDp() |
| val afterDp = 40.px.toDp() |
| val childDp = 30.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(childSize, childPosition, layoutLatch) }) { _, _, _ -> |
| layout(0.ipx, childDp.toIntPx(), mapOf(testLine to lineDp.toIntPx())) { } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value!!.width, parentSize.value!!.width) |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertEquals(beforeDp.toIntPx() + afterDp.toIntPx(), parentSize.value!!.height) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(0.px, childPosition.value!!.x) |
| Assert.assertEquals( |
| beforeDp.toIntPx().toPx() - lineDp.toIntPx().toPx(), |
| childPosition.value!!.y |
| ) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_vertical_withSmallOffsets() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = VerticalAlignmentLine(::min) |
| val beforeDp = 5.px.toDp() |
| val afterDp = 5.px.toDp() |
| val childDp = 30.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(childSize, childPosition, layoutLatch) }) { _, _, _ -> |
| layout(childDp.toIntPx(), 0.ipx, mapOf(testLine to lineDp.toIntPx())) { } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value, parentSize.value) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(0.px, childPosition.value!!.x) |
| Assert.assertEquals(0.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_horizontal_withSmallOffsets() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = HorizontalAlignmentLine(::min) |
| val beforeDp = 5.px.toDp() |
| val afterDp = 5.px.toDp() |
| val childDp = 30.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(childSize, childPosition, layoutLatch) }) { _, _, _ -> |
| layout(0.ipx, childDp.toIntPx(), mapOf(testLine to lineDp.toIntPx())) { } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value, parentSize.value) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(0.px, childPosition.value!!.x) |
| Assert.assertEquals(0.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_vertical_withInsufficientSpace() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = VerticalAlignmentLine(::min) |
| val maxWidth = 30.px.toDp() |
| val beforeDp = 20.px.toDp() |
| val afterDp = 20.px.toDp() |
| val childDp = 25.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(maxWidth = maxWidth)) { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ |
| SaveLayoutInfo(childSize, childPosition, layoutLatch) |
| }) { _, _, _ -> |
| layout( |
| childDp.toIntPx(), |
| 0.ipx, |
| mapOf(testLine to lineDp.toIntPx()) |
| ) { } |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertEquals(maxWidth.toIntPx(), parentSize.value!!.width) |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value!!.height, parentSize.value!!.height) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(5.px, childPosition.value!!.x) |
| Assert.assertEquals(0.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_horizontal_withInsufficientSpace() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = HorizontalAlignmentLine(::min) |
| val maxHeight = 30.px.toDp() |
| val beforeDp = 20.px.toDp() |
| val afterDp = 20.px.toDp() |
| val childDp = 25.px.toDp() |
| val lineDp = 10.px.toDp() |
| |
| val parentSize = Ref<IntPxSize>() |
| val childSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(maxHeight = maxHeight)) { |
| AlignmentLineOffset(testLine, before = beforeDp, after = afterDp) { |
| SaveLayoutInfo(parentSize, Ref(), layoutLatch) |
| Layout({ |
| SaveLayoutInfo(childSize, childPosition, layoutLatch) |
| }) { _, _, _ -> |
| layout( |
| 0.ipx, |
| childDp.toIntPx(), |
| mapOf(testLine to lineDp.toIntPx()) |
| ) { } |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(childSize.value) |
| Assert.assertEquals(childSize.value!!.width, parentSize.value!!.width) |
| Assert.assertNotNull(parentSize.value) |
| Assert.assertEquals(maxHeight.toIntPx(), parentSize.value!!.height) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(0.px, childPosition.value!!.x) |
| Assert.assertEquals(5.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_vertical_keepsCrossAxisMinConstraints() = with(density) { |
| val testLine = VerticalAlignmentLine(::min) |
| val latch = CountDownLatch(1) |
| val minHeight = 10.dp |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(minHeight = minHeight)) { |
| AlignmentLineOffset(testLine) { |
| WithConstraints { constraints, _ -> |
| Assert.assertEquals(minHeight.toIntPx(), constraints.minHeight) |
| latch.countDown() |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun testAlignmentLineOffset_horizontal_keepsCrossAxisMinConstraints() = with(density) { |
| val testLine = HorizontalAlignmentLine(::min) |
| val latch = CountDownLatch(1) |
| val minWidth = 10.dp |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(minWidth = minWidth)) { |
| AlignmentLineOffset(testLine) { |
| WithConstraints { constraints, _ -> |
| Assert.assertEquals(minWidth.toIntPx(), constraints.minWidth) |
| latch.countDown() |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun testCenterAlignmentLine_vertical_keepsCrossAxisMinConstraints() = with(density) { |
| val testLine = VerticalAlignmentLine(::min) |
| val latch = CountDownLatch(1) |
| val minHeight = 10.dp |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(minHeight = minHeight)) { |
| CenterAlignmentLine(testLine) { |
| WithConstraints { constraints, _ -> |
| Assert.assertEquals(minHeight.toIntPx(), constraints.minHeight) |
| latch.countDown() |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun testCenterAlignmentLine_horizontal_keepsCrossAxisMinConstraints() = with(density) { |
| val testLine = HorizontalAlignmentLine(::min) |
| val latch = CountDownLatch(1) |
| val minWidth = 10.dp |
| show { |
| Wrap { |
| ConstrainedBox(DpConstraints(minWidth = minWidth)) { |
| CenterAlignmentLine(testLine) { |
| WithConstraints { constraints, _ -> |
| Assert.assertEquals(minWidth.toIntPx(), constraints.minWidth) |
| latch.countDown() |
| } |
| } |
| } |
| } |
| } |
| Assert.assertTrue(latch.await(1, TimeUnit.SECONDS)) |
| } |
| |
| @Test |
| fun testCenterAlignmentLine_vertical_withInfiniteWidth() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = VerticalAlignmentLine(::min) |
| val childWidth = 30.dp |
| val childHeight = 40.dp |
| val lineDp = 10.dp |
| |
| val centerSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Layout({ |
| CenterAlignmentLine(testLine) { |
| SaveLayoutInfo(centerSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(Ref(), childPosition, layoutLatch) }) { _, _, _ -> |
| layout( |
| childWidth.toIntPx(), |
| childHeight.toIntPx(), |
| mapOf(testLine to lineDp.toIntPx()) |
| ) { } |
| } |
| } |
| }) { measurables, _, _ -> |
| val placeable = measurables.first().measure(Constraints()) // Infinite measuring |
| layout(0.ipx, 0.ipx) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(centerSize.value) |
| Assert.assertEquals( |
| ((childWidth.toIntPx() - lineDp.toIntPx()) * 2), |
| centerSize.value!!.width |
| ) |
| Assert.assertEquals(childHeight.toIntPx(), centerSize.value!!.height) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals( |
| (childWidth.toIntPx() - lineDp.toIntPx() * 2).toPx(), childPosition.value!!.x |
| ) |
| Assert.assertEquals(0.px, childPosition.value!!.y) |
| } |
| |
| @Test |
| fun testCenterAlignmentLine_horizontal_withInfiniteHeight() = with(density) { |
| val layoutLatch = CountDownLatch(2) |
| val testLine = HorizontalAlignmentLine(::min) |
| val childWidth = 30.dp |
| val childHeight = 40.dp |
| val lineDp = 10.dp |
| |
| val centerSize = Ref<IntPxSize>() |
| val childPosition = Ref<PxPosition>() |
| show { |
| Layout({ |
| CenterAlignmentLine(testLine) { |
| SaveLayoutInfo(centerSize, Ref(), layoutLatch) |
| Layout({ SaveLayoutInfo(Ref(), childPosition, layoutLatch) }) { _, _, _ -> |
| layout( |
| childWidth.toIntPx(), |
| childHeight.toIntPx(), |
| mapOf(testLine to lineDp.toIntPx()) |
| ) { } |
| } |
| } |
| }) { measurables, _, _ -> |
| val placeable = measurables.first().measure(Constraints()) // Infinite measuring |
| layout(0.ipx, 0.ipx) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| Assert.assertTrue(layoutLatch.await(1, TimeUnit.SECONDS)) |
| |
| Assert.assertNotNull(centerSize.value) |
| Assert.assertEquals(childWidth.toIntPx(), centerSize.value!!.width) |
| Assert.assertEquals( |
| ((childHeight.toIntPx() - lineDp.toIntPx()) * 2), |
| centerSize.value!!.height |
| ) |
| Assert.assertNotNull(childPosition.value) |
| Assert.assertEquals(0.px, childPosition.value!!.x) |
| Assert.assertEquals( |
| (childHeight.toIntPx() - lineDp.toIntPx() * 2).toPx(), childPosition.value!!.y |
| ) |
| } |
| } |