commonTest.selectable.list.TestSelectableListConnectView.kt Maven / Gradle / Ivy

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InstantSearch Android is a library providing widgets and helpers to help you build the best instant-search experience on Android with Algolia. It is built on top of Algolia's Kotlin API Client to provide you a high-level solution to quickly build various search interfaces.

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package selectable.list

import com.algolia.instantsearch.core.Callback
import com.algolia.instantsearch.core.selectable.list.SelectableItem
import com.algolia.instantsearch.core.selectable.list.SelectableListView
import com.algolia.instantsearch.core.selectable.list.SelectableListViewModel
import com.algolia.instantsearch.core.selectable.list.SelectionMode
import com.algolia.instantsearch.core.selectable.list.connectView
import shouldBeEmpty
import shouldEqual
import shouldNotBeNull
import kotlin.test.Test

class TestSelectableListConnectView {

    private val string = "string"
    private val items = listOf(string)
    private val selections = setOf(string)

    private class MockFilterListViewFacet : SelectableListView {

        var list: List> = listOf()

        override var onSelection: Callback? = null

        override fun setItems(items: List>) {
            list = items
        }
    }

    @Test
    fun connectShouldCallSetItem() {
        val view = MockFilterListViewFacet()
        val viewModel = SelectableListViewModel(items, SelectionMode.Multiple)
        val connection = viewModel.connectView(view)

        viewModel.selections.value = selections
        connection.connect()
        view.list shouldEqual listOf(string to true)
    }

    @Test
    fun onItemsChangedShouldCallSetItem() {
        val view = MockFilterListViewFacet()
        val viewModel = SelectableListViewModel(emptyList(), SelectionMode.Multiple)
        val connection = viewModel.connectView(view)

        connection.connect()
        viewModel.items.value.shouldBeEmpty()
        viewModel.items.value = items
        view.list shouldEqual listOf(string to false)
    }

    @Test
    fun onSelectionsChangedShouldCallSetItems() {
        val view = MockFilterListViewFacet()
        val viewModel = SelectableListViewModel(items, SelectionMode.Multiple)
        val connection = viewModel.connectView(view)

        connection.connect()
        viewModel.selections.value = selections
        view.list shouldEqual listOf(string to true)
    }

    @Test
    fun onClickShouldCallOnSelectionsComputed() {
        val view = MockFilterListViewFacet()
        val viewModel = SelectableListViewModel(items, SelectionMode.Multiple)
        val connection = viewModel.connectView(view)

        viewModel.eventSelection.subscribe { viewModel.selections.value = it }
        connection.connect()
        view.onSelection.shouldNotBeNull()
        view.onSelection!!(string)
        view.list shouldEqual listOf(string to true)
    }
}