(Just a quick share from work before that neuron goes back to sleep and I forget it...) When a number of domain substitute classes need to satisfy the same tests, its useful to define these in a superclass and have subclasses define which domain class is being tested e.g. TestDelaySemaphoreSchedulerMmicrosecondTeicker>>classForScheduler.
From the Browser "all tests" can be run for each subclass by clicking the class's test-icon, but when that goes red, its not visible which individual test failed, and you can't run an individual test from the Browser.
In the same way that extension methods are shown in gray, it would be useful for inherited tests to be shown in gray, so each has an individual indication and can be run separately. cheers -ben