I am building an SDK using kotlin multiplatform fo...

# multiplatform

[Vivek Mittal]

I am building an SDK using kotlin multiplatform for iOS and Android. Most if not all of my code is in commonMain.

Can someone please suggest a mocking library? I plan to test in commonTest. I understand some people test in androidTest to use JUnit and Mockito. I don't think that is advisable.

I read MocKMP doesn't support commonTest.

[Joel Denke]

I advise not mock at all if you can, use Fakes instead. Or what features do you need mock for?

[Vivek Mittal]

Can I ask why would you advise against mocking? I am trying to mock all dependencies of a class. Same as I have always done on other platforms.

[Joel Denke]

Its a long story, but many companies I worked on and in more vanilla Kotlin best practices the recommendation is going for fakes rather than mocks.
Its a lot of details why, but wont list all of them now.
Instead of mock dependecies, create fakes for them to emulate what need 🙂 And if any class depend on SDK specific stuff make sure can fake that class so reducing that need.

[Mustafa Ozhan]

I use mockative in my project

[Mustafa Ozhan]

https://github.com/mockative/mockative

[Joel Denke]

Here is the longer story:
https://tyrrrz.me/blog/fakes-over-mocks

[Vivek Mittal]

@Mustafa Ozhan
Have you been able to use it for testing common code using both android and ios as target?

[Mustafa Ozhan]

Yeap I do, the project is public so you can check here: https://github.com/Oztechan/CCC

If you interest only in android&ios you can check the modules in client . In common i also target to jvm for backend.
ie the modules in :client:viewmodel:x are all has tests for ios & android