A modern programming language that makes developers happier.

kotlinlang

```java.lang.IllegalStateException: Module with the Main dispatcher had failed to initialize```

The Main dispatcher is a platform dependent dispatcher.
I suggest not having a strict dependency on it, instead figure out a way to inject it into the thing you are testing.

That way you can inject `Dispatcher.Unconfined` into your object.

I know in Android at least the `Dispatcher.Main` can not be called from a unit test.

```
object CoroutineTestingScope : CoroutineScope {
    override val coroutineContext = Dispatchers.Unconfined
}
```

I usually have my object that run suspending functions take `CoroutineScope` as an argument. Then I can inject the testing scope I just described.

Or I make my suspending functions extension functions of `CoroutineScope`.

Then I can test them using my global testing scope in isolation.

I usually never test a function by itself.

I always test my functions indirectly as part of the larger system.