Hey guys. A few weeks ago, I introduced Micro-Mock, a mocking processor & runtime for Kotlin Mul...

# multiplatform

[salomonbrys]

Hey guys.
A few weeks ago, I introduced Micro-Mock, a mocking processor & runtime for Kotlin Multiplatform that allows to mock interfaces with the same syntax & semantics than MockK or Mockito-Kotlin.

Today I'm announcing that it has been renamed MocKMP and promoted to stable.
Here is the announcement article: https://medium.com/kodein-koders/mockmp-a-mocking-processor-for-kotlin-multiplatform-51957c484fe5
The library itself lives here: https://github.com/Kodein-Framework/MocKMP

We hope you'll find it usefull.

[Paul Woitaschek]

Technically, we should be able to generate implementations of abstract class or open class in Kotlin,

Have you evalulated if a mechanism like https://kotlinlang.org/docs/all-open-plugin.html could help here and merry it with mockmp?

[salomonbrys]

Well, that would only work on classes of the current module.
MocKMP allows you to mock any interface, whether from a library or your module sources.

[AnaR]

@salomonbrys Is there a sample project I can use to figure out how to use it. I tried it with Kotlin 1.6.0 and the setup with the plugin, but, it doesn't seem to be generating the mocks.

[AnaR]

Answering my own question: I needed to run testDebugUnitTest to generate the class. Then added the generated srcdir to commonTest.

[AnaR]

Ran into another problem though with trying to run the test on iOS: : Could not determine the dependencies of task 'sharedcompileTestKotlinIosX64'.

Task with path 'kspTestKotlinAndroid' not found in project ':shared'.

[salomonbrys]

@anar can you provide a reproducer ?

[AnaR]

Should I open an issue and add it on the project?

[AnaR]

Issue opened. Thanks for responding.

[salomonbrys]

I'll have a look asap 🙂

[Ahmet Özcan]

Hello,

[Ahmet Özcan]

How can i test interfaces with suspend functions ?

[salomonbrys]

Hi @Ahmet Özcan, Mocking interfaces with suspend functions should be supported.
If you find a use-case where it is not the case, please open an issue with a reproducer.

[Ahmet Özcan]

this code block not get compiled

[Ahmet Özcan]

mocker.every{
    remoteDataSource.checkUserName(isAny())
} returns DataState.Success(CheckUserNameResponse(true))

[Ahmet Özcan]

because checkUserName is a suspend function

[Ahmet Özcan]

im missing something for sure but what 😄

[Ahmet Özcan]

when i call as below its ok. But the runBlocking method is coming from my framework with exptect/actual mech.

mocker.every{
    runBlocking {
        remoteDataSource.checkUserName(isAny())
    }
} returns DataState.Success(CheckUserNameResponse(true))

is there any other way to do that ?

[Ahmet Özcan]

Full code is

runTest {
    mocker.every{
        runBlocking {
            remoteDataSource.checkUserName(isAny())
        }
    } returns DataState.Success(CheckUserNameResponse(true))
    state.test {
        SUT.sendIntent(RegisterWithPhoneViewStore.Intent.SetPhoneNumber(validPhoneNumber))
        var item = expectMostRecentItem()
        assertEquals(item.phoneNumber, validPhoneNumber)
        SUT.sendIntent(RegisterWithPhoneViewStore.Intent.ValidatePhoneNumber)
        item = awaitItem()
        assertTrue(item.inProgress)
        item = awaitItem()
        assertTrue(!item.inProgress)
    }

    navigation.test {
        SUT.sendIntent(RegisterWithPhoneViewStore.Intent.ValidatePhoneNumber)
        val item = awaitItem()
        println(item)
        assertTrue(item is Destination.LoginScreen)
    }

    assertTrue(onboardingManager.phoneNumber.isEmpty())
    assertEquals(OnboardingType.Empty, onboardingManager.onboardingType)
}

[salomonbrys]

Investigating...

[Ahmet Özcan]

🙏

[salomonbrys]

@Ahmet Özcan Version 1.2.0 properly supports suspend functions.
The documentation has been updated to reflect that : https://github.com/Kodein-Framework/MocKMP#defining-suspending-behaviour

[Ahmet Özcan]

Thank you very much Salomon.
I ll be more then happy to use this great library K