class Superclass { abstract int do_some_stuff(); abstract int do_some_other_stuff(); }
class Foo1 : Superclass.... class Foo2 : Superclass.... class Foo3 : Superclass.... unittest { // get an instance of all classes Superclass[] instances = [new Foo1(), new Foo2(), new Foo3()]; // test their behavoir foreach(instance; instances) { assert(instance.do_some_stuff() > 0, "whoops!"); assert(instance.do_some_other_stuff() < 100, "whoops!"); } }