Mockito retrofit2 with MVP architecture - kotlin

Question

I think somethings wrong about my code in TeamImplsTest, and i need advice :D
This is my code
API interface
interface API {
#GET("lookupteam.php")
fun getTeam(#Query("id") id: String): Call<TeamModel>
}
TeamPresenter
interface MatchPresenter {
fun loadTeamDetail(team_id: String)
}
TeamImpls
class TeamImpls(val teamView: TeamView) : TeamPresenter {
override fun loadTeamDetail(team_id: String) {
val call = RetrofitConfig().getApi().getTeam(team_id)
call.enqueue(object : Callback {
override fun onResponse(call: Call, response: Response) {
if (response.isSuccessful()) {
val res = response.body()
res?.let { teamView.onSuccess(it) }
}
}
override fun onFailure(call: Call, t: Throwable) {
Log.e("PrevMatchFragment", t.toString())
}
})
}
}
TeamModel
data class TeamModel(
val teams: ArrayList
)
data class TeamModeLResult(
val idTeam: String,
val strTeam: String,
val strAlternate: String,
val strSport: String,
val strStadium: String,
val strTeamBadge: String
)
And
This my TeamImplsTest
class TeamImplsTest {
#Mock
private lateinit var teamView: TeamView
#Mock
private lateinit var teamPresenter: TeamPresenter
#Before
fun setUp() {
MockitoAnnotations.initMocks(this)
teamPresenter = TeamImpls(teamView)
}
#Test
fun loadTeamDetail() {
val teams = TeamModel(arrayListOf())
val teamId = "133613"
teamPresenter.loadTeamDetail(teamId)
Mockito.verify(teamView).onSuccess(teams)
}
}
i got error
Wanted but not invoked:
teamView.onSuccess(TeamModel(teams=[]));
-> at com.fathurradhy.matchschedule.domain.presenter.TeamImplsTest.loadTeamDetail(TeamImplsTest.kt:34)
Actually, there were zero interactions with this mock.
Wanted but not invoked:
teamView.onSuccess(TeamModel(teams=[]));
-> at com.fathurradhy.matchschedule.domain.presenter.TeamImplsTest.loadTeamDetail(TeamImplsTest.kt:34)
Actually, there were zero interactions with this mock.

Answer 1

You're not mocking the API call as loadTeamDetail creates its own API instance.
To enable you to test the API call behaviour you could provide the API instance through your constructor, e.g.
class TeamImpls(private val api: API, private val teamView: TeamView) : TeamPresenter {
override fun loadTeamDetail(team_id: String) {
val call = api.getTeam(team_id)
This would then allow you to mock the api behaviour and verify the presenter calls the correct method when the call fails/succeeds, e.g.
class TeamImplsTest {
#Mock
private lateinit var teamView: TeamView
#Mock
private lateinit var api: API
#Mock
private lateinit var teamPresenter: TeamPresenter
#Before
fun setUp() {
MockitoAnnotations.initMocks(this)
teamPresenter = TeamImpls(api, teamView)
}
#Test
fun loadTeamDetail() {
val teams = TeamModel(arrayListOf())
val teamId = "133613"
// Use retrofit-mock to create your mockResponse.
// See: https://github.com/square/retrofit/tree/master/retrofit-mock
Mockito.`when`(api.getTeam(teamId)).thenReturn(Calls.response(teams)
teamPresenter.loadTeamDetail(teamId)
Mockito.verify(teamView).onSuccess(teams)
}
}