Dagger Component Overriding test

DaggerTest.kt

fun test() {
    val testAComponent = DaggerTestA_Component.builder()
        .parentComponent(object: TestA.ParentComponent {

        })
        .build()
    val testBComponent = DaggerTestB_Component.builder()
        .parentComponent(testAComponent)
        .build()
    val testInjected = TestInjected()
    testBComponent.inject(testInjected)
    Log.i("DAVID", testInjected.str) // B
}

class TestA() {
    @dagger.Module
    abstract class Module {

        @dagger.Module
        companion object {
            @Provides
            @JvmStatic
            internal fun str(): String {
                return "A"
            }
        }
    }

    interface ParentComponent

    @dagger.Component(modules = [Module::class], dependencies = [ParentComponent::class])
    interface Component : TestB.ParentComponent {
        @dagger.Component.Builder
        interface Builder {
            fun parentComponent(component: ParentComponent): Builder
            fun build(): Component
        }
    }
}

class TestB() {
    @dagger.Module
    abstract class Module {

        @dagger.Module
        companion object {
            @Provides
            @JvmStatic
            internal fun str(): String {
                return "B"
            }
        }
    }

    interface ParentComponent

    @dagger.Component(modules = [Module::class], dependencies = [ParentComponent::class])
    interface Component {

        fun inject(testInjected: TestInjected)

        @dagger.Component.Builder
        interface Builder {
            fun parentComponent(component: ParentComponent): Builder
            fun build(): Component
        }
    }
}

class TestInjected() {
    @Inject lateinit var str: String
}