99a3210859
Reactor recently added the `ScriptedSubscriber` in its new `reactor-addons` module. This `Subscriber` revissits the previous `TestSubscriber` with many improvements, including: * scripting each expectation * builder API that guides you until the final verification step * virtual time support This commit refactor all existing tests to use this new infrastructure and removed the `TestSubscriber` implementation. Issue: SPR-14800