| /* |
| * Copyright 2023 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.material3.adaptive |
| |
| import android.app.Activity |
| import android.content.Context |
| import android.content.res.Configuration |
| import android.graphics.Rect |
| import androidx.annotation.UiContext |
| import androidx.compose.runtime.CompositionLocalProvider |
| import androidx.compose.runtime.State |
| import androidx.compose.runtime.mutableStateOf |
| import androidx.compose.ui.platform.LocalConfiguration |
| import androidx.compose.ui.test.junit4.createComposeRule |
| import androidx.compose.ui.unit.IntSize |
| import androidx.test.ext.junit.runners.AndroidJUnit4 |
| import androidx.test.filters.SmallTest |
| import androidx.window.layout.WindowMetrics |
| import androidx.window.layout.WindowMetricsCalculator |
| import androidx.window.layout.WindowMetricsCalculatorDecorator |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| |
| @OptIn(ExperimentalMaterial3AdaptiveApi::class) |
| @SmallTest |
| @RunWith(AndroidJUnit4::class) |
| class WindowSizeAsStateTest { |
| @get:Rule |
| val rule = createComposeRule() |
| |
| @Test |
| fun test_windowSizeAsState() { |
| lateinit var actualWindowSize: State<IntSize> |
| |
| val mockWindowSize = mutableStateOf(MockWindowSize1) |
| WindowMetricsCalculator.overrideDecorator( |
| MockWindowMetricsCalculatorDecorator(mockWindowSize) |
| ) |
| |
| rule.setContent { |
| val testConfiguration = Configuration(LocalConfiguration.current) |
| testConfiguration.screenWidthDp = mockWindowSize.value.width |
| testConfiguration.screenHeightDp = mockWindowSize.value.height |
| CompositionLocalProvider(LocalConfiguration provides testConfiguration) { |
| actualWindowSize = windowSizeAsState() |
| } |
| } |
| |
| rule.runOnIdle { |
| assertThat(actualWindowSize.value).isEqualTo(MockWindowSize1) |
| } |
| |
| mockWindowSize.value = MockWindowSize2 |
| |
| rule.runOnIdle { |
| assertThat(actualWindowSize.value).isEqualTo(MockWindowSize2) |
| } |
| } |
| |
| companion object { |
| val MockWindowSize1 = IntSize(1000, 600) |
| val MockWindowSize2 = IntSize(800, 400) |
| } |
| } |
| |
| internal class MockWindowMetricsCalculatorDecorator( |
| private val mockWindowSize: State<IntSize> |
| ) : WindowMetricsCalculatorDecorator { |
| override fun decorate(calculator: WindowMetricsCalculator): WindowMetricsCalculator { |
| return MockWindowMetricsCalculator(mockWindowSize) |
| } |
| } |
| |
| internal class MockWindowMetricsCalculator( |
| private val mockWindowSize: State<IntSize> |
| ) : WindowMetricsCalculator { |
| override fun computeCurrentWindowMetrics(activity: Activity): WindowMetrics { |
| return WindowMetrics( |
| Rect(0, 0, mockWindowSize.value.width, mockWindowSize.value.height) |
| ) |
| } |
| |
| override fun computeMaximumWindowMetrics(activity: Activity): WindowMetrics { |
| return computeCurrentWindowMetrics(activity) |
| } |
| |
| override fun computeCurrentWindowMetrics(@UiContext context: Context): WindowMetrics { |
| return WindowMetrics( |
| Rect(0, 0, mockWindowSize.value.width, mockWindowSize.value.height) |
| ) |
| } |
| } |
