USING: concurrency.futures kernel tools.test threads ; IN: concurrency.futures.tests [ 50 ] [ [ 50 ] future ?future ] unit-test [ [ "this should propogate" throw ] future ?future ] must-fail [ ] [ [ "this should not propogate" throw ] future drop ] unit-test ! Race condition with futures [ 3 3 ] [ [ 3 ] future dup ?future swap ?future ] unit-test ! Another race [ 3 ] [ [ 3 yield ] future ?future ] unit-test