Having this method: ``` fun setup() { if (...

# coroutines

[aaverin]

Having this method:

fun setup() {
        if (!requiresMigration()) {
            launch { regularPaymentSetup.setup() }
        } else {
            launch { migrationPaymentSetup.setup(it) }
        }
    }

How to unit-test that regularPayment is executed?

launch starts a new coroutine and test fails

[Jonathan]

I'd always prefer creating suspending function, and only create coroutine at the most top-level.

[Jonathan]

suspend fun setup() {
	if (!requiresMigration()) {
		regularPaymentSetup.setup()
	} else {
		migrationPaymentSetup.setup(it)
	}
}

[aaverin]

That’s my usual approach

[Jonathan]

And test sudently becomes easy

[Jonathan]

why cannot you apply it here?

[aaverin]

fun setup() {
        if (!requiresMigration()) {
            launch { regularPaymentSetup.setup() }
        } else {
            reactiveRxCache.load().subscribe {
                launch { migrationPaymentSetup.setup(it) }
            }

        }
    }

[aaverin]

There is some Rx inside =(

[Jonathan]

suspend fun setup() {
	if (!requiresMigration()) {
		regularPaymentSetup.setup()
	} else {
		reactiveRxCache.load().consumeEach {
			migrationPaymentSetup.setup(it)
		}
	}
}

[Jonathan]

using kotlinx-coroutines-rx2

[Jonathan]

https://github.com/Kotlin/kotlinx.coroutines/blob/master/reactive/kotlinx-coroutines-rx2/README.md

[aaverin]

Thanks for the tip, I’ll take a look