| /* |
| * 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.foundation.shape.corner |
| |
| import androidx.test.filters.SmallTest |
| import androidx.compose.ui.geometry.Size |
| import androidx.compose.ui.geometry.toRect |
| import androidx.compose.ui.graphics.Outline |
| import androidx.compose.ui.graphics.Path |
| import androidx.compose.ui.graphics.PathOperation |
| import androidx.compose.ui.graphics.Shape |
| import androidx.compose.ui.unit.Density |
| import androidx.compose.ui.unit.dp |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Assert |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class CutCornerShapeTest { |
| |
| private val density = Density(2f) |
| private val size = Size(100.0f, 150.0f) |
| |
| @Test |
| fun cutCornersUniformCorners() { |
| val cut = CutCornerShape(10.0f) |
| |
| val outline = cut.toOutline() as Outline.Generic |
| assertPathsEquals(outline.path, Path().apply { |
| moveTo(0f, 10f) |
| lineTo(10f, 0f) |
| lineTo(90f, 0f) |
| lineTo(100f, 10f) |
| lineTo(100f, 140f) |
| lineTo(90f, 150f) |
| lineTo(10f, 150f) |
| lineTo(0f, 140f) |
| close() |
| }) |
| } |
| |
| @Test |
| fun cutCornersDifferentCorners() { |
| val size1 = 12f |
| val size2 = 22f |
| val size3 = 32f |
| val size4 = 42f |
| val cut = CutCornerShape(size1, size2, size3, size4) |
| |
| val outline = cut.toOutline() as Outline.Generic |
| assertPathsEquals(outline.path, Path().apply { |
| moveTo(0f, 12f) |
| lineTo(12f, 0f) |
| lineTo(78f, 0f) |
| lineTo(100f, 22f) |
| lineTo(100f, 118f) |
| lineTo(68f, 150f) |
| lineTo(42f, 150f) |
| lineTo(0f, 108f) |
| close() |
| }) |
| } |
| |
| @Test |
| fun createsRectangleOutlineForZeroSizedCorners() { |
| val rounded = CutCornerShape(0.0f, 0.0f, 0.0f, 0.0f) |
| |
| assertThat(rounded.toOutline()) |
| .isEqualTo(Outline.Rectangle(size.toRect())) |
| } |
| |
| @Test |
| fun cutCornerShapesAreEquals() { |
| assertThat(CutCornerShape(10.0f)) |
| .isEqualTo(CutCornerShape(10.0f)) |
| } |
| |
| @Test |
| fun cutCornerUpdateAllCornerSize() { |
| assertThat(CutCornerShape(10.0f).copy(CornerSize(5.0f))) |
| .isEqualTo(CutCornerShape(5.0f)) |
| } |
| |
| @Test |
| fun cutCornerUpdateTwoCornerSizes() { |
| assertThat(CutCornerShape(10.0f).copy( |
| topRight = CornerSize(3.dp), |
| bottomLeft = CornerSize(50) |
| )).isEqualTo(CutCornerShape( |
| topLeft = CornerSize(10.0f), |
| topRight = CornerSize(3.dp), |
| bottomRight = CornerSize(10.0f), |
| bottomLeft = CornerSize(50) |
| )) |
| } |
| |
| private fun Shape.toOutline() = createOutline(size, density) |
| } |
| |
| fun assertPathsEquals(path1: Path, path2: Path) { |
| val diff = Path() |
| val reverseDiff = Path() |
| Assert.assertTrue( |
| diff.op(path1, path2, PathOperation.difference) && |
| reverseDiff.op(path2, path1, PathOperation.difference) && |
| diff.isEmpty && |
| reverseDiff.isEmpty |
| ) |
| } |