Hello how could I test a function that receives a

Flow<T>

as a parameter and then inside has a

collect { }

? Example

fun doStuff(flow: Flow<String>) {
   scope.launch {
      flow.collect { 
        if(!it in myList) { 
           dataSource.add(it)
        }
      }
   }
}

How would I have this verify that

dataSource.add(it)

? Considering this

myList

is something I can mock too

Checking data source before and after to see if it is adding what you expect

Yes but how, I mean do I have to do something like :

runBlocking {
   myMethod.doStuff(flowOf("hello"))
}

You shouldn't need runBlocking, only the new runTest function. It allows advance the time too until the flow is completed

but do I have to emit the value?

you mean the flowOf?

yes

Probably you should test multiple scenarios