| /* |
| * 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.compose.ui.graphics.vector |
| |
| import android.graphics.Bitmap |
| import android.os.Build |
| import androidx.compose.Composable |
| import androidx.test.filters.SdkSuppress |
| import androidx.test.filters.SmallTest |
| import androidx.ui.core.Alignment |
| import androidx.ui.core.DensityAmbient |
| import androidx.ui.core.Modifier |
| import androidx.ui.core.paint |
| import androidx.ui.core.test.AtLeastSize |
| import androidx.compose.foundation.Box |
| import androidx.compose.ui.graphics.Color |
| import androidx.compose.ui.graphics.ColorFilter |
| import androidx.compose.ui.graphics.SolidColor |
| import androidx.compose.ui.graphics.toArgb |
| import androidx.compose.foundation.layout.preferredHeight |
| import androidx.compose.foundation.layout.preferredSize |
| import androidx.compose.foundation.layout.preferredWidth |
| import androidx.ui.test.captureToBitmap |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.onRoot |
| import androidx.ui.test.runOnUiThread |
| import androidx.ui.test.waitForIdle |
| import androidx.ui.unit.dp |
| import org.junit.Assert |
| import org.junit.Assert.assertEquals |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.CountDownLatch |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class VectorTest { |
| |
| @get:Rule |
| val rule = createComposeRule() |
| |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @Test |
| fun testVectorTint() { |
| rule.setContent { |
| VectorTint() |
| } |
| |
| takeScreenShot(200).apply { |
| assertEquals(getPixel(100, 100), Color.Cyan.toArgb()) |
| } |
| } |
| |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @Test |
| fun testVectorAlignment() { |
| rule.setContent { |
| VectorTint(minimumSize = 500, alignment = Alignment.BottomEnd) |
| } |
| |
| takeScreenShot(500).apply { |
| assertEquals(getPixel(480, 480), Color.Cyan.toArgb()) |
| } |
| } |
| |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @Test |
| fun testVectorInvalidation() { |
| val latch1 = CountDownLatch(1) |
| val latch2 = CountDownLatch(1) |
| val testCase = VectorInvalidationTestCase(latch1) |
| rule.setContent { |
| testCase.createTestVector() |
| } |
| |
| latch1.await() |
| val size = testCase.vectorSize |
| takeScreenShot(size).apply { |
| assertEquals(Color.Blue.toArgb(), getPixel(5, size - 5)) |
| assertEquals(Color.White.toArgb(), getPixel(size - 5, 5)) |
| } |
| |
| testCase.latch = latch2 |
| runOnUiThread { |
| testCase.toggle() |
| } |
| |
| waitForIdle() |
| |
| takeScreenShot(size).apply { |
| assertEquals(Color.White.toArgb(), getPixel(5, size - 5)) |
| assertEquals(Color.Red.toArgb(), getPixel(size - 5, 5)) |
| } |
| } |
| |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @Test |
| fun testVectorClipPath() { |
| rule.setContent { |
| VectorClip() |
| } |
| |
| takeScreenShot(200).apply { |
| assertEquals(getPixel(100, 50), Color.Cyan.toArgb()) |
| assertEquals(getPixel(100, 150), Color.Black.toArgb()) |
| } |
| } |
| |
| @Test |
| fun testVectorZeroSizeDoesNotCrash() { |
| // Make sure that if we are given the size of zero we should not crash and instead |
| // act as a no-op |
| rule.setContent { |
| Box(modifier = Modifier.preferredSize(0.dp).paint(createTestVectorPainter())) |
| } |
| } |
| |
| @Test |
| fun testVectorZeroWidthDoesNotCrash() { |
| rule.setContent { |
| Box(modifier = Modifier.preferredWidth(0.dp).preferredHeight(100.dp).paint |
| (createTestVectorPainter())) |
| } |
| } |
| |
| @Test |
| fun testVectorZeroHeightDoesNotCrash() { |
| rule.setContent { |
| Box(modifier = Modifier.preferredWidth(50.dp).preferredHeight(0.dp).paint( |
| createTestVectorPainter() |
| )) |
| } |
| } |
| |
| @Composable |
| private fun VectorTint( |
| size: Int = 200, |
| minimumSize: Int = size, |
| alignment: Alignment = Alignment.Center |
| ) { |
| |
| val background = Modifier.paint( |
| createTestVectorPainter(size), |
| colorFilter = ColorFilter.tint(Color.Cyan), |
| alignment = alignment |
| ) |
| AtLeastSize(size = minimumSize, modifier = background) { |
| } |
| } |
| |
| @Composable |
| private fun createTestVectorPainter(size: Int = 200): VectorPainter { |
| val sizePx = size.toFloat() |
| val sizeDp = (size / DensityAmbient.current.density).dp |
| return VectorPainter( |
| defaultWidth = sizeDp, |
| defaultHeight = sizeDp) { _, _ -> |
| Path( |
| pathData = PathData { |
| lineTo(sizePx, 0.0f) |
| lineTo(sizePx, sizePx) |
| lineTo(0.0f, sizePx) |
| close() |
| }, |
| fill = SolidColor(Color.Black) |
| ) |
| } |
| } |
| |
| @Composable |
| private fun VectorClip( |
| size: Int = 200, |
| minimumSize: Int = size, |
| alignment: Alignment = Alignment.Center |
| ) { |
| val sizePx = size.toFloat() |
| val sizeDp = (size / DensityAmbient.current.density).dp |
| val background = Modifier.paint( |
| VectorPainter( |
| defaultWidth = sizeDp, |
| defaultHeight = sizeDp |
| ) { _, _ -> |
| Path( |
| // Cyan background. |
| pathData = PathData { |
| lineTo(sizePx, 0.0f) |
| lineTo(sizePx, sizePx) |
| lineTo(0.0f, sizePx) |
| close() |
| }, |
| fill = SolidColor(Color.Cyan) |
| ) |
| Group( |
| // Only show the top half... |
| clipPathData = PathData { |
| lineTo(sizePx, 0.0f) |
| lineTo(sizePx, sizePx / 2) |
| lineTo(0.0f, sizePx / 2) |
| close() |
| }, |
| // And rotate it, resulting in the bottom half being black. |
| pivotX = sizePx / 2, |
| pivotY = sizePx / 2, |
| rotation = 180f |
| ) { |
| Path( |
| pathData = PathData { |
| lineTo(sizePx, 0.0f) |
| lineTo(sizePx, sizePx) |
| lineTo(0.0f, sizePx) |
| close() |
| }, |
| fill = SolidColor(Color.Black) |
| ) |
| } |
| }, |
| alignment = alignment |
| ) |
| AtLeastSize(size = minimumSize, modifier = background) { |
| } |
| } |
| |
| private fun takeScreenShot(width: Int, height: Int = width): Bitmap { |
| val bitmap = onRoot().captureToBitmap() |
| Assert.assertEquals(width, bitmap.width) |
| Assert.assertEquals(height, bitmap.height) |
| return bitmap |
| } |
| } |