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Makes sure to test loadMore method on TimelinePresenter

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This commit is contained in:
ganfra 2023-02-27 20:30:22 +01:00
parent b86d5a67e5
commit 45711b062e
3 changed files with 32 additions and 12 deletions
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26
libraries/matrixtest/src/main/kotlin/io/element/android/libraries/matrixtest/timeline/FakeMatrixTimeline.kt
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@ -23,28 +23,42 @@ import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.emptyFlow
class FakeMatrixTimeline : MatrixTimeline {
class FakeMatrixTimeline(
initialTimelineItems: List<MatrixTimelineItem> = emptyList(),
initialPaginationState: MatrixTimeline.PaginationState = MatrixTimeline.PaginationState(canBackPaginate = true, isBackPaginating = false)
) : MatrixTimeline {
private val paginationState = MutableStateFlow(
MatrixTimeline.PaginationState(canBackPaginate = true, isBackPaginating = false)
)
private val paginationState: MutableStateFlow<MatrixTimeline.PaginationState> = MutableStateFlow(initialPaginationState)
private val timelineItems: MutableStateFlow<List<MatrixTimelineItem>> = MutableStateFlow(initialTimelineItems)
fun updatePaginationState(update: (MatrixTimeline.PaginationState.() -> MatrixTimeline.PaginationState)) {
paginationState.value = update(paginationState.value)
}
fun updateTimelineItems(update: (items: List<MatrixTimelineItem>) -> List<MatrixTimelineItem>) {
timelineItems.value = update(timelineItems.value)
}
override fun paginationState(): StateFlow<MatrixTimeline.PaginationState> {
return paginationState
}
override fun timelineItems(): Flow<List<MatrixTimelineItem>> {
return emptyFlow()
return timelineItems
}
override suspend fun paginateBackwards(requestSize: Int, untilNumberOfItems: Int): Result<Unit> {
updatePaginationState {
copy(isBackPaginating = true)
}
delay(100)
updatePaginationState {
copy(isBackPaginating = false)
}
updateTimelineItems { timelineItems ->
timelineItems
}
return Result.success(Unit)
}