Hi, sorry to ask another time help after one week,...

# mockk

[ivano]

Hi, sorry to ask another time help after one week, at least I will write everything on the same thread.
I have to test a function to ascertain that returns a type. I am using firebase initialising via an Object the function that calls FirebaseAnalytics

object AnalyticsReporter {

    fun logEvent(message: String, bundle: Bundle = Bundle.EMPTY) {

        FirebaseAnalytics.getInstance(ProActiveApplication.applicationContext()).logEvent(message, bundle)
    }

the method i call is this one :

when (loginState.value) {
       
            is EnterPassword -> {
                unknownPassword.onNext(AuthenticationCredentials(client, emailAddress))
                logEvent("user_forgot_password")
            }
}

[ivano]

when i hit logEvent I get a NPE, this is the class

[ivano]

mockkObject(AnalyticsReporter)
every { AnalyticsReporter.logEvent(any(),any()) } returns Unit
        println(viewModel.helpAction())

[ivano]

and this is the error I get :

[ivano]

java.lang.NullPointerException: Bundle.EMPTY must not be null

	at com.xxxxe.analytics.AnalyticsReporter.logEvent$default(AnalyticsReporter.kt:13)
	at com.xxx.viewmodel.LoginViewModel.helpAction(LoginViewModel.kt:201)

[ivano]

why I get this BundleEmpty passed as default parameter null? I cannot mock a Bundle.Empty as well right?

[Mattia Tommasone]

what’s the value of Bundle.EMPTY? is it an enum?

[ivano]

Bundle Empty is from Bundle.java and is null indeed :

[ivano]

public static final Bundle EMPTY;

[ivano]

from Bundle.java that is needed to firebase to work properly

[ivano]

but i passed any() in

mockkObject(AnalyticsReporter)
every { AnalyticsReporter.logEvent(any(),any()) } returns Unit

[Mattia Tommasone]

i think if you write the signature of your function as

[Mattia Tommasone]

fun logEvent(message: String, bundle: Bundle? = Bundle.EMPTY) {

[Mattia Tommasone]

(note the ?)

[Mattia Tommasone]

it should work

[ivano]

oh YESSSSSSS

[ivano]

thank you very much Mattia, and sorry I see why now

[Mattia Tommasone]

np 🙂

[Matteo Mirk]

another happy ending but… I could have never imagined in my nightmares that Bundle.EMPTY would be a null constant…wtf Firebase?! 😳

[Mattia Tommasone]

well that’s perfectly valid in java unforunately 😞

[Matteo Mirk]

yeah I know but… what the heck? It just violates conventions 😆

[ivano]

Yes Matteo

[ivano]

As the Swiss tv

[ivano]

All is good that ends good

[Matteo Mirk]

hahaha 🔝