redukt-test-thunk

ReduKt Test Thunk

ReduKt Test Thunk provides tools to test thunks. It's an extension of ReduKt Test and provides very similar API.

Quick start

Testing thunks is very similar to testing middlewares described here, and you should start there. Simple examples below shows thunk testing flow:

• For Thunk:

val CustomThunk = Thunk<AppState> {
    if (currentState.condition) dispatch(ActionA)
}

class CustomThunkTest {
    private val tester = CustomThunk.tester(initialState = AppState())

    @Test
    fun test() = tester.test {
        // given
        currentState = AppState(condition = true)
        // when
        testExecute()
        // then
        assertSingleActionEquals(ActionA)
    }
}

• For CoThunk (requires runTest from kotlinx-coroutines-test):

val CustomCoThunk = CoThunk<AppState> {
    if (currentState.condition) {
        delay(1_000)
        dispatch(ActionA)
    }
}

class CustomCoThunkTest {
    private val tester = CustomCoThunk.tester(initialState = AppState())

    @Test
    fun test() = runTest {
        tester.test {
            // given
            currentState = AppState(condition = true)
            // when
            testExecute() // suspends until thunk function completes
            // then
            assertSingleActionEquals(ActionA)
        }
    }
}