rozkminiacz

given("no people in repository"){
    val view: PeopleListContract.View = mock()
    val repository : Repository<Person> = mock {
        on { getAll() } doReturn Single.error(Error("no data"))
    }
    val presenter = PeopleListPresenter(repository)
    on("presenter attach"){
        presenter.attach(view)
        presenterAttachStandardFlow(view, presenter){
            it("should not add anything to view"){

rozkminiacz

on("presenter attach") {
    presenter.attach(view)
    presenterAttachStandardFlow(view, presenter) {
        it("should add people to view") {
            verify(view).addPeople(peopleList)
        }
        it("should never show error") {
            verify(view, never()).showError(anyOrNull())
        }
    }

rozkminiacz

fun ActionBody.presenterAttachStandardFlow(
        view: PeopleListContract.View,
        presenter: PeopleListPresenter,
        additionalTestBlock: () -> Unit) {
    it("should attach view") {
        Assert.assertNotNull(presenter.view)
    }
    it("should start loading") {
        verify(view).showLoading()
    }

rozkminiacz

class PeopleListPresenter(private val repository: Repository<Person>) : PeopleListContract.Presenter {

    var view: PeopleListContract.View? = null

    override fun attach(view: PeopleListContract.View) {
        this.view = view
        loadPeople()
    }

    private fun loadPeople() {

rozkminiacz

val presenter = PeopleListPresenter(repository)

on("presenter attach"){
    presenter.attach(view)
    it("should attach view"){
        assertNotNull(presenter.view)
    }
    it("should start loading") {
        verify(view).showLoading()
    }

rozkminiacz

val peopleList : List<Person> = listOf(
                    Person(id = "1", firstName = "Mark", surname = "Train"),
                    Person(id = "2", firstName = "George", secondName = "Edward", surname = "Bicycle")
            )

val repository : Repository<Person> = mock{
    on { getAll() } doReturn Single.just(peopleList)
}

rozkminiacz

class PeopleListPresenter(val repository: Repository<Person>) : PeopleListContract.Presenter {

    var view: PeopleListContract.View? = null

    override fun attach(view: PeopleListContract.View) {
        this.view = view
    }

    override fun detach() {
        this.view = null

rozkminiacz

interface Repository<in T>{
    fun getAll() : Single<List<T>>
    fun getOne(id : String) : Single<T>
    fun create(t : T)
}

rozkminiacz

on("presenter attach") {
    presenter.attach(view)
    it("should attach view") {
        assertNotNull(presenter.view)
    }
    it("should start loading") {
        verify(view).showLoading()
    }
    it("should load list into view") {
        verify(view).addPeople(peopleList)

rozkminiacz

import org.jetbrains.spek.api.Spek
import org.jetbrains.spek.api.dsl.*
import org.junit.platform.runner.JUnitPlatform
import com.nhaarman.mockito_kotlin.*
import org.junit.runner.RunWith

@RunWith(JUnitPlatform::class)
object PeopleListTest : Spek({
    given("people exists in repository"){
        val view: PeopleListContract.View = mock()