Getting started

Apply the Gradle plugin and activate the helper dependency:

plugins {
    kotlin("multiplatform") version "2.0.21"
    id("com.google.devtools.ksp") version "2.0.21-1.0.28" (1)
    id("org.kodein.mock.mockmp") version "2.0.0" (2)
}

kotlin {
    jvmToolchain(17)
    // Your Koltin/Multiplatform configuration
}

mockmp { (3)
    onTest {
        withHelper() // or withHelper(junit5)
    }
}

1	Apply the KSP plugin that corresponds to the Kotlin version you are using.
2	Apply the MocKMP plugin.
3	Apply MocKMP to your test source-sets (must be configured after declaring `kotlin` targets).

Create a test class that declares injected mocks and fakes:

class MyTest : TestsWithMocks() { (1)
    override fun setUpMocks() = mocker.injectMocks(this) (2)

    @Mock lateinit var view: View
    @Fake lateinit var model: Model

    val controller by withMocks { Controller(view = view, firstModel = model) }

    @Test fun controllerTest() {
        every { view.render(isAny()) } returns true
        controller.start()
        verify { view.render(model) }
    }
}

1	The `TestsWithMocks` super class eases the use of MocKMP in your tests, but is not mandatory.
2	This is mandatory and cannot be generated. You need to build your project at least once for your IDE to see the `injectMocks` function.

Every property annotated by @Mock, annotated by @Fake or delegated to withMocks will be reset fresh between each test.