| /* |
| * 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. |
| */ |
| |
| @file:Suppress("Deprecation") |
| |
| package androidx.ui.core.test |
| |
| import android.content.Context |
| import android.graphics.Canvas |
| import android.graphics.Paint |
| import android.graphics.Rect |
| import android.os.Build |
| import android.view.View |
| import android.view.View.MeasureSpec |
| import android.view.ViewGroup |
| import android.view.ViewGroup.LayoutParams.MATCH_PARENT |
| import android.view.ViewGroup.LayoutParams.WRAP_CONTENT |
| import androidx.compose.Composable |
| import androidx.compose.mutableStateOf |
| import androidx.test.espresso.Espresso |
| import androidx.test.espresso.assertion.ViewAssertions.matches |
| import androidx.test.espresso.matcher.ViewMatchers.isDescendantOfA |
| import androidx.test.filters.SdkSuppress |
| import androidx.test.filters.SmallTest |
| import androidx.ui.core.Constraints |
| import androidx.ui.core.Layout |
| import androidx.ui.core.LayoutDirection |
| import androidx.ui.core.LayoutModifier |
| import androidx.ui.core.Measurable |
| import androidx.ui.core.MeasureScope |
| import androidx.ui.core.Modifier |
| import androidx.ui.core.Owner |
| import androidx.ui.core.Ref |
| import androidx.ui.core.TestTag |
| import androidx.ui.core.drawLayer |
| import androidx.ui.graphics.Color |
| import androidx.ui.graphics.toArgb |
| import androidx.ui.semantics.Semantics |
| import androidx.ui.test.assertIsDisplayed |
| import androidx.ui.test.assertPixels |
| import androidx.ui.test.captureToBitmap |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.findByTag |
| import androidx.ui.test.runOnIdleCompose |
| import androidx.ui.test.runOnUiThread |
| import androidx.ui.unit.IntPxPosition |
| import androidx.ui.unit.ipx |
| import junit.framework.TestCase.assertNotNull |
| import org.hamcrest.CoreMatchers.`is` |
| import org.hamcrest.CoreMatchers.instanceOf |
| import org.junit.Assert.assertEquals |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| /** |
| * Testing the support for Android Views in Compose UI. |
| */ |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class AndroidViewCompatTest { |
| @get:Rule |
| val composeTestRule = createComposeRule() |
| |
| @Test |
| fun simpleLayoutTest() { |
| val squareRef = Ref<ColoredSquareView>() |
| val squareSize = mutableStateOf(100.ipx) |
| var expectedSize = 100 |
| composeTestRule.setContent { |
| TestTag("content") { |
| Align { |
| Semantics(container = true) { |
| Layout( |
| @Composable { |
| ColoredSquareView(size = squareSize.value.value, ref = squareRef) |
| } |
| ) { measurables, constraints, _ -> |
| assertEquals(1, measurables.size) |
| val placeable = measurables.first().measure( |
| constraints.copy(minWidth = 0.ipx, minHeight = 0.ipx) |
| ) |
| assertEquals(placeable.width, expectedSize.ipx) |
| assertEquals(placeable.height, expectedSize.ipx) |
| layout(constraints.maxWidth, constraints.maxHeight) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| } |
| } |
| } |
| findByTag("content").assertIsDisplayed() |
| val squareView = squareRef.value |
| assertNotNull(squareView) |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| |
| runOnUiThread { |
| // Change view attribute using recomposition. |
| squareSize.value = 200.ipx |
| expectedSize = 200 |
| } |
| findByTag("content").assertIsDisplayed() |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| |
| runOnUiThread { |
| // Change view attribute using the View reference. |
| squareView!!.size = 300 |
| expectedSize = 300 |
| } |
| findByTag("content").assertIsDisplayed() |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| } |
| |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @Test |
| fun simpleDrawTest() { |
| val squareRef = Ref<ColoredSquareView>() |
| val colorModel = mutableStateOf(Color.Blue) |
| val squareSize = 100 |
| var expectedColor = Color.Blue |
| composeTestRule.setContent { |
| Align { |
| TestTag("content") { |
| Semantics(container = true) { |
| Container(Modifier.drawLayer()) { |
| ColoredSquareView(color = colorModel.value, ref = squareRef) |
| } |
| } |
| } |
| } |
| } |
| val squareView = squareRef.value |
| assertNotNull(squareView) |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| val expectedPixelColor = { position: IntPxPosition -> |
| if (position.x.value < squareSize && position.y.value < squareSize) { |
| expectedColor |
| } else { |
| Color.White |
| } |
| } |
| findByTag("content") |
| .assertIsDisplayed() |
| .captureToBitmap() |
| .assertPixels(expectedColorProvider = expectedPixelColor) |
| |
| runOnUiThread { |
| // Change view attribute using recomposition. |
| colorModel.value = Color.Green |
| expectedColor = Color.Green |
| } |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| findByTag("content") |
| .assertIsDisplayed() |
| .captureToBitmap() |
| .assertPixels(expectedColorProvider = expectedPixelColor) |
| |
| runOnUiThread { |
| // Change view attribute using the View reference. |
| colorModel.value = Color.Red |
| expectedColor = Color.Red |
| } |
| Espresso |
| .onView(instanceOf(ColoredSquareView::class.java)) |
| .check(matches(isDescendantOfA(instanceOf(Owner::class.java)))) |
| .check(matches(`is`(squareView))) |
| findByTag("content") |
| .assertIsDisplayed() |
| .captureToBitmap() |
| .assertPixels(expectedColorProvider = expectedPixelColor) |
| } |
| |
| // When incoming constraints are fixed. |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_1() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(20, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(30, MeasureSpec.EXACTLY), |
| Constraints.fixed(20.ipx, 30.ipx), |
| ViewGroup.LayoutParams(40, 50) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_2() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(20, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(30, MeasureSpec.EXACTLY), |
| Constraints.fixed(20.ipx, 30.ipx), |
| ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_3() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(20, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(30, MeasureSpec.EXACTLY), |
| Constraints.fixed(20.ipx, 30.ipx), |
| ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT) |
| ) |
| } |
| |
| // When incoming constraints are finite. |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_4() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(25, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(35, MeasureSpec.EXACTLY), |
| Constraints( |
| minWidth = 20.ipx, maxWidth = 30.ipx, minHeight = 35.ipx, maxHeight = 45.ipx |
| ), |
| ViewGroup.LayoutParams(25, 35) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_5() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(20, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(35, MeasureSpec.EXACTLY), |
| Constraints( |
| minWidth = 20.ipx, maxWidth = 30.ipx, minHeight = 35.ipx, maxHeight = 45.ipx |
| ), |
| ViewGroup.LayoutParams(15, 25) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_6() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(30, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(45, MeasureSpec.EXACTLY), |
| Constraints( |
| minWidth = 20.ipx, maxWidth = 30.ipx, minHeight = 35.ipx, maxHeight = 45.ipx |
| ), |
| ViewGroup.LayoutParams(35, 50) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_7() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(40, MeasureSpec.AT_MOST), |
| MeasureSpec.makeMeasureSpec(50, MeasureSpec.AT_MOST), |
| Constraints(maxWidth = 40.ipx, maxHeight = 50.ipx), |
| ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_8() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(40, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(50, MeasureSpec.EXACTLY), |
| Constraints(maxWidth = 40.ipx, maxHeight = 50.ipx), |
| ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT) |
| ) |
| } |
| |
| // When incoming constraints are infinite. |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_9() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(25, MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(35, MeasureSpec.EXACTLY), |
| Constraints(), |
| ViewGroup.LayoutParams(25, 35) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_10() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), |
| MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), |
| Constraints(), |
| ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT) |
| ) |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMeasureSpecs_11() { |
| testMeasurement_isDoneWithCorrectMeasureSpecs( |
| MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), |
| MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), |
| Constraints(), |
| ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT) |
| ) |
| } |
| |
| private fun testMeasurement_isDoneWithCorrectMeasureSpecs( |
| expectedWidthSpec: Int, |
| expectedHeightSpec: Int, |
| constraints: Constraints, |
| layoutParams: ViewGroup.LayoutParams |
| ) { |
| val viewRef = Ref<MeasureSpecSaverView>() |
| val widthMeasureSpecRef = Ref<Int>() |
| val heightMeasureSpecRef = Ref<Int>() |
| // Unique starting constraints so that new constraints are different and thus recomp is |
| // guaranteed. |
| val constraintsHolder = mutableStateOf(Constraints.fixed(1234.ipx, 5678.ipx)) |
| |
| composeTestRule.setContent { |
| Container(LayoutConstraints(constraintsHolder.value)) { |
| MeasureSpecSaverView( |
| ref = viewRef, |
| widthMeasureSpecRef = widthMeasureSpecRef, |
| heightMeasureSpecRef = heightMeasureSpecRef |
| ) |
| } |
| } |
| |
| runOnUiThread { |
| constraintsHolder.value = constraints |
| viewRef.value?.layoutParams = layoutParams |
| } |
| |
| runOnIdleCompose { |
| assertEquals(expectedWidthSpec, widthMeasureSpecRef.value) |
| assertEquals(expectedHeightSpec, heightMeasureSpecRef.value) |
| } |
| } |
| |
| @Test |
| fun testMeasurement_isDoneWithCorrectMinimumDimensionsSetOnView() { |
| val viewRef = Ref<MeasureSpecSaverView>() |
| val constraintsHolder = mutableStateOf(Constraints()) |
| composeTestRule.setContent { |
| Container(LayoutConstraints(constraintsHolder.value)) { |
| MeasureSpecSaverView(ref = viewRef) |
| } |
| } |
| runOnUiThread { |
| constraintsHolder.value = Constraints(minWidth = 20.ipx, minHeight = 30.ipx) |
| } |
| |
| runOnIdleCompose { |
| assertEquals(20, viewRef.value!!.minimumWidth) |
| assertEquals(30, viewRef.value!!.minimumHeight) |
| } |
| } |
| |
| class ColoredSquareView(context: Context) : View(context) { |
| var size: Int = 100 |
| set(value) { |
| if (value != field) { |
| field = value |
| requestLayout() |
| } |
| } |
| |
| var color: Color = Color.Blue |
| set(value) { |
| if (value != field) { |
| field = value |
| invalidate() |
| } |
| } |
| |
| // TODO(popam): can we merge the android-view Ref with the one in core? |
| var ref: Ref<ColoredSquareView>? = null |
| set(value) { |
| field = value |
| value?.value = this |
| } |
| |
| override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec) |
| setMeasuredDimension(size, size) |
| } |
| |
| override fun draw(canvas: Canvas?) { |
| super.draw(canvas) |
| canvas!!.drawRect( |
| Rect(0, 0, size, size), |
| Paint().apply { color = this@ColoredSquareView.color.toArgb() } |
| ) |
| } |
| } |
| |
| class MeasureSpecSaverView(context: Context) : View(context) { |
| var ref: Ref<MeasureSpecSaverView>? = null |
| set(value) { |
| field = value |
| value?.value = this |
| } |
| var widthMeasureSpecRef: Ref<Int>? = null |
| var heightMeasureSpecRef: Ref<Int>? = null |
| |
| override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { |
| widthMeasureSpecRef?.value = widthMeasureSpec |
| heightMeasureSpecRef?.value = heightMeasureSpec |
| setMeasuredDimension(0, 0) |
| } |
| } |
| |
| fun LayoutConstraints(childConstraints: Constraints) = object : LayoutModifier { |
| override fun MeasureScope.measure( |
| measurable: Measurable, |
| constraints: Constraints, |
| layoutDirection: LayoutDirection |
| ): MeasureScope.MeasureResult { |
| val placeable = measurable.measure(childConstraints) |
| return layout(placeable.width, placeable.height) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| |
| @Composable |
| fun Container( |
| modifier: Modifier = Modifier, |
| children: @Composable () -> Unit |
| ) { |
| Layout(children, modifier) { measurables, constraints, _ -> |
| val placeable = measurables[0].measure(constraints) |
| layout(placeable.width, placeable.height) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| } |