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77 lines
1.7 KiB
Plaintext
77 lines
1.7 KiB
Plaintext
:: Wrap tests in stateful philters
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::
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/+ ph
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=, ph
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|%
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::
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:: A philter is similar to a test in structure, but they don't
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:: terminate and have a ++stay arm for saving their state.
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::
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:: They may be wrappped around a test with +wrap-philter.
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::
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++ philter
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|* o=mold
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|%
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++ output
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$~ [& ~ %wait ~]
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$: thru=?
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events=(list ph-event)
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$= next
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$% [%wait ~]
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[%cont self=form]
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==
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==
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++ form
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$_ ^?
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|%
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++ stay *o
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++ run |~(ph-input *output)
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--
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--
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::
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:: Run the inner test wrapped in the outer philter. The philter may
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:: respond to any event that the test didn't consume. One use is to
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:: mock outside services, like an Ethereum node or LetsEncrypt.
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::
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++ wrap-philter
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|* [o=mold i=mold]
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|= [outer=_*form:(philter o) inner=_*form:(ph i)]
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^+ *form:(ph ,[o i])
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|= input=ph-input
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=/ res-i=_*output:(ph i)
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(inner input)
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?. thru.res-i
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:+ thru.res-i events.res-i
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?- -.next.res-i
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%wait [%wait ~]
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%cont [%cont ..$(inner self.next.res-i)]
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%fail [%fail ~]
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%done [%done stay:outer value.next.res-i]
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==
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=/ res-o=_*output:(philter o)
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(run:outer input)
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^+ *output:(ph ,[o i])
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:+ thru.res-o (welp events.res-i events.res-o)
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?- -.next.res-i
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%wait
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?- -.next.res-o
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%wait [%wait ~]
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%cont [%cont ..$(outer self.next.res-o)]
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==
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::
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%cont
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=. inner self.next.res-i
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?- -.next.res-o
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%wait [%cont ..$]
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%cont [%cont ..$(outer self.next.res-o)]
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==
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::
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%fail [%fail ~]
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%done
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?- -.next.res-o
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%wait [%done stay:outer value.next.res-i]
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%cont [%done stay:self.next.res-o value.next.res-i]
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==
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==
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--
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