53 lines
1.9 KiB
Racket
53 lines
1.9 KiB
Racket
#lang syndicate/test-implementation
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;; Simple tests of supervision functionality.
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(require syndicate/supervise)
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(test-case
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[(supervise #:name 'ward
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(on-start (printf "Starting ward\n"))
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(on-stop (printf "Stopping ward\n"))
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(on (message 'crash)
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(printf "Crashing\n")
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(error 'ward "Eep!"))
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(stop-when (message 'quit)
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(printf "Bye!\n")))
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(define (monitor-interest-in thing)
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(spawn #:name (list 'monitor-interest-in thing)
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(during (observe thing)
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(on-start (printf "Interest in ~v appeared\n" thing))
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(on-stop (printf "Interest in ~v disappeared\n" thing)))))
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(monitor-interest-in 'crash)
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(monitor-interest-in 'quit)
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(spawn* #:name 'main
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(until (asserted (observe 'crash)))
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(send! 'crash)
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(flush!)
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(flush!)
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(flush!)
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;; ^ give it time to actually terminate
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;; v then wait for the next instance to appear
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(until (asserted (observe 'quit)))
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(send! 'quit))]
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(it "should cause ward to produce an exception"
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(actor-died? 'ward "Eep!"))
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(it "should cause exactly one crash in total"
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(= (length (collected-exns)) 1))
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(expected-output (list "Starting ward")
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(set "Interest in 'crash appeared"
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"Interest in 'quit appeared")
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(list "Crashing")
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(set "Interest in 'quit disappeared"
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"Interest in 'crash disappeared")
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(list "Starting ward")
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(set "Interest in 'crash appeared"
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"Interest in 'quit appeared")
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(list "Stopping ward"
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"Bye!")
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(set "Interest in 'quit disappeared"
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"Interest in 'crash disappeared")))
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