Hi, I’m kotest newbie. I just run ViewModel test but I’ve been stuck in some error. Here is the erro...

# kotest

[Minjae Lee]

Hi, I’m kotest newbie. I just run ViewModel test but I’ve been stuck in some error.
Here is the error

io.kotest.engine.extensions.ExtensionException$BeforeEachException: java.lang.NoSuchMethodError: 'androidx.lifecycle.LiveData androidx.lifecycle.Transformations.distinctUntilChanged(androidx.lifecycle.LiveData)'
io.kotest.engine.extensions.MultipleExceptions: io.kotest.engine.extensions.ExtensionException$BeforeEachException: java.lang.NoSuchMethodError: 'androidx.lifecycle.LiveData androidx.lifecycle.Transformations.distinctUntilChanged(androidx.lifecycle.LiveData)'

This error might be related to Android issues, but I have no idea.
Is there any ways to test for Transformations(livedata) with Kotest?

[sam]

Looks like version mismatch to me

[Minjae Lee]

oh really? which libraries should I check?

[sam]

Well it lokos like the androidx.lifecycle one is trying to use a method that doesn't exist

[Minjae Lee]

I thought that, too. But, it just happens after kotest verion(latest version) is uodated, which is crazy.

[sam]

hmmm, maybe soemthing that androidx uses got bumped at the same time

[sam]

if you're on kotest 5.4.x make sure you're on kotlin 1.6+ and coroutines 1.6.4

[Minjae Lee]

Ok, thanks a lot. Androidx lib might cause this issues. Actually, I've updated kotest, kotlin and some androidx library to use compose.

[Minjae Lee]

But there is nothing with googling, so I have no choice to ask it this channel.

[sam]

I would try using the original androidx lib

[Minjae Lee]

Thanks bro