commonTest.number.TestNumberConnectView.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 number

import com.algolia.instantsearch.core.number.NumberView
import com.algolia.instantsearch.core.number.NumberViewModel
import com.algolia.instantsearch.core.number.connectView
import com.algolia.instantsearch.core.number.decrement
import com.algolia.instantsearch.core.number.increment
import shouldEqual
import kotlin.test.Test

class TestNumberConnectView {

    private class MockNumberView : NumberView {

        var onClickIncrement: (() -> Unit)? = null
        var onClickDecrement: (() -> Unit)? = null

        var string: String? = null

        override fun setComputation(computation: ((Int?) -> Int?) -> Unit) {
            onClickIncrement = {
                computation.increment()
            }
            onClickDecrement = {
                computation.decrement()
            }
        }

        override fun setText(text: String) {
            string = text
        }
    }

    @Test
    fun connectShouldCallSetItem() {
        val view = MockNumberView()
        val viewModel = NumberViewModel(0..10)
        val connection = viewModel.connectView(view)

        viewModel.number.value = 5
        connection.connect()
        view.string shouldEqual "5"
    }

    @Test
    fun onSetNumberShouldCallSetItem() {
        val view = MockNumberView()
        val viewModel = NumberViewModel(0..10)
        val connection = viewModel.connectView(view)

        connection.connect()
        viewModel.number.value = 5
        view.string shouldEqual "5"
    }

    @Test
    fun onClickShouldCallEventSubscription() {
        val view = MockNumberView()
        val viewModel = NumberViewModel(0..10)
        val connection = viewModel.connectView(view)

        viewModel.eventNumber.subscribe { viewModel.number.value = it }
        connection.connect()
        view.onClickIncrement!!()
        view.string shouldEqual "0"
        view.onClickIncrement!!()
        view.string shouldEqual "1"
        view.onClickDecrement!!()
        view.string shouldEqual "0"
    }
}