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Fixed stack animation not updating to new child component instance wh…
…en active configuration is unchanged
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155 changes: 155 additions & 0 deletions
155
...ov/decompose/extensions/compose/experimental/stack/animation/DefaultStackAnimationTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package com.arkivanov.decompose.extensions.compose.experimental.stack.animation | ||
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| import androidx.compose.animation.EnterExitState | ||
| import androidx.compose.animation.core.LinearEasing | ||
| import androidx.compose.animation.core.Transition | ||
| import androidx.compose.animation.core.animateFloat | ||
| import androidx.compose.animation.core.tween | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.LaunchedEffect | ||
| import androidx.compose.runtime.State | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.setValue | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.test.MainTestClock | ||
| import androidx.compose.ui.test.junit4.createComposeRule | ||
| import com.arkivanov.decompose.Child | ||
| import com.arkivanov.decompose.router.stack.ChildStack | ||
| import org.junit.Rule | ||
| import kotlin.test.Test | ||
| import kotlin.test.assertEquals | ||
| import kotlin.test.assertTrue | ||
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|
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| @Suppress("TestFunctionName") | ||
| class DefaultStackAnimationTest { | ||
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|
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| @get:Rule | ||
| val composeRule = createComposeRule() | ||
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| @Test | ||
| fun WHEN_animating_push_and_stack_popped_during_animation_THEN_animated_push_and_pop_fully() { | ||
| val anim = | ||
| DefaultStackAnimation<Int, Any>( | ||
| disableInputDuringAnimation = true, | ||
| predictiveBackParams = { null }, | ||
| selector = { _, _, _ -> null }, | ||
| ) | ||
|
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| var stack by mutableStateOf(stack(1)) | ||
| val values1 = ArrayList<Pair<Long, Float>>() | ||
| val values2 = ArrayList<Pair<Long, Float>>() | ||
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| composeRule.setContent { | ||
| anim(stack = stack, modifier = Modifier) { | ||
| val value by transition.animateFloat(durationMillis = 1000) | ||
| val pair = composeRule.mainClock.currentTime to value | ||
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| when (it.key) { | ||
| 1 -> values1 += pair | ||
| 2 -> values2 += pair | ||
| } | ||
| } | ||
| } | ||
|
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| stack = stack(1, 2) | ||
| composeRule.mainClock.advanceFramesBy(millis = 500L) | ||
| stack = stack(1) | ||
| composeRule.waitForIdle() | ||
|
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| val v11 = values1.takeSorted(compareByDescending { it.second }) | ||
| val v21 = values2.takeSorted(compareBy { it.second }) | ||
| assertTrue(v11.size > 10) | ||
| assertTrue(v21.size > 10) | ||
| assertEquals(1F, v11.first().second) | ||
| assertEquals(0F, v11.last().second) | ||
| assertEquals(0F, v21.first().second) | ||
| assertEquals(1F, v21.last().second) | ||
|
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| val v12 = values1.drop(v11.size - 1).takeSorted(compareBy { it.second }) | ||
| val v22 = values2.drop(v21.size - 1).takeSorted(compareByDescending { it.second }) | ||
| assertTrue(v12.size > 10) | ||
| assertTrue(v22.size > 10) | ||
| assertEquals(0F, v12.first().second) | ||
| assertEquals(1F, v12.last().second) | ||
| assertEquals(1F, v22.first().second) | ||
| assertEquals(0F, v22.last().second) | ||
| } | ||
|
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| @Test | ||
| fun WHEN_animating_push_and_stack_popped_during_animation_THEN_first_child_restarted() { | ||
| val anim = | ||
| DefaultStackAnimation<Int, Any>( | ||
| disableInputDuringAnimation = true, | ||
| predictiveBackParams = { null }, | ||
| selector = { _, _, _ -> null }, | ||
| ) | ||
|
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| var stack by mutableStateOf(stack(1)) | ||
| var counter = 0 | ||
|
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| composeRule.setContent { | ||
| anim(stack = stack, modifier = Modifier) { | ||
| transition.animateFloat(durationMillis = 1000) | ||
|
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| if (it.key == 1) { | ||
| LaunchedEffect(Unit) { | ||
| counter++ | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| stack = stack(1, 2) | ||
| composeRule.mainClock.advanceFramesBy(millis = 500L) | ||
| stack = stack(1) | ||
| composeRule.waitForIdle() | ||
|
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| assertEquals(counter, 2) | ||
| } | ||
|
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| private fun <T> List<T>.takeSorted(comparator: Comparator<T>): List<T> { | ||
| if (isEmpty()) { | ||
| return emptyList() | ||
| } | ||
|
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| val items = ArrayList<T>() | ||
|
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| items += first() | ||
| for (i in 1 until size) { | ||
| val item = get(i) | ||
| if (comparator.compare(item, items.last()) < 0) { | ||
| break | ||
| } | ||
| items += item | ||
| } | ||
|
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| return items | ||
| } | ||
|
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| private fun MainTestClock.advanceFramesBy(millis: Long) { | ||
| val endTime = currentTime + millis | ||
| while (currentTime < endTime) { | ||
| advanceTimeByFrame() | ||
| } | ||
| } | ||
|
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| @Composable | ||
| private fun Transition<EnterExitState>.animateFloat(durationMillis: Int): State<Float> = | ||
| animateFloat(transitionSpec = { tween(durationMillis = durationMillis, easing = LinearEasing) }) { state -> | ||
| when (state) { | ||
| EnterExitState.PreEnter -> 0F | ||
| EnterExitState.Visible -> 1F | ||
| EnterExitState.PostExit -> 0F | ||
| } | ||
| } | ||
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| private fun child(config: Int): Child.Created<Int, Any> = | ||
| Child.Created(configuration = config, instance = Any()) | ||
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| private fun stack(vararg stack: Int): ChildStack<Int, Any> = | ||
| ChildStack( | ||
| active = child(stack.last()), | ||
| backStack = stack.dropLast(1).map(::child), | ||
| ) | ||
| } |
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