| /* |
| * 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.test |
| |
| import androidx.compose.state |
| import androidx.compose.unaryPlus |
| import androidx.test.filters.MediumTest |
| import androidx.ui.core.TestTag |
| import androidx.ui.material.Checkbox |
| import androidx.ui.material.MaterialTheme |
| import androidx.ui.material.surface.Surface |
| import androidx.ui.test.android.AndroidSemanticsTreeInteraction |
| import com.google.common.truth.Truth |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @MediumTest |
| @RunWith(JUnit4::class) |
| class RecompositionDetectionTest { |
| |
| @get:Rule |
| val composeTestRule = createComposeRule( |
| disableTransitions = true, |
| throwOnRecomposeTimeout = true // This makes sure that any timeout will cause crash |
| ) |
| |
| /** |
| * This test verifies that our recomposition callback are getting called. This is achieved |
| * thanks to 'throwOnRecomposeTimeout'. This helps to make sure that we are actually waiting for |
| * callbacks and not just relying on implicit timeout delays. |
| */ |
| @Test |
| fun actionShouldTriggerRecomposeAndTimeOutShouldNotHappen() { |
| composeTestRule.setContent { |
| val (checked, onCheckedChange) = +state { false } |
| MaterialTheme { |
| Surface { |
| TestTag(tag = "checkbox") { |
| Checkbox(checked, onCheckedChange) |
| } |
| } |
| } |
| } |
| |
| val node = findByTag("checkbox") |
| val interaction = node.semanticsTreeInteraction as AndroidSemanticsTreeInteraction |
| |
| Truth.assertThat(interaction.hadPendingChangesAfterLastAction).isFalse() |
| |
| node.doClick() |
| |
| Truth.assertThat(interaction.hadPendingChangesAfterLastAction).isTrue() |
| |
| node.assertIsOn() |
| } |
| } |
