How would I write unit tests for this? ```Coroutin...

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[Brumelis Martins]

How would I write unit tests for this?

CoroutineScope(Dispatchers.Main).launch {
    withContext(<http://Dispatchers.IO|Dispatchers.IO>) {
        // do something here
    }
}

It always stops after withContext(Dispatchers.IO), im adding the TestCoroutineDispatcher @rule but it still does not work.

[allan.conda]

try injecting the dispatchers

[Chillbrodev]

you need to inject a scope and testdispatcher in order to control the corotuines. This is a great article for getting started. It has some Android specifics in there but you can ignore those. https://medium.com/@daptronic/kotlin-coroutines-android-how-to-unit-test-lifecyclecoroutinescope-654ab324f3e7

[Chillbrodev]

This is also a good reference https://craigrussell.io/2019/11/unit-testing-coroutine-suspend-functions-using-testcoroutinedispatcher/