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Why is this important?
Unit testing Flows is not always straightforward, let's give an example and set up the dependencies
Any review notes?
Uses Junit java dependencies directly, ie.
import junit.framework.TestCase.assertEquals
I think kotlin-test would be nicer, but I'm not sure how to add the dependency
https://kotlinlang.org/docs/jvm-test-using-junit.html (note this uses junit5 and we are using junit4)
It is unclear whether junit5 is supported in Android, don't think so: https://issuetracker.google.com/issues/127100532