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tests: Assert that cyclic graphs can be produced.

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* tests/graph.scm ("package DAG, oops it was a cycle"): New test.
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Liliana Marie Prikler 2022-01-24 19:15:44 +01:00
parent 10b901a437
commit 45082b9a8c
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1 changed files with 28 additions and 0 deletions
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tests/graph.scm
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@ -36,6 +36,7 @@ (define-module (test-graph)
#:use-module (gnu packages libunistring)
#:use-module (gnu packages bootstrap)
#:use-module (ice-9 match)
#:use-module (ice-9 sandbox)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
@ -113,6 +114,33 @@ (define (edge->tuple source target)
(list p4 p4)
(list p2 p3))))))))
(test-assert "package DAG, oops it was a cycle"
(let-values (((backend nodes+edges) (make-recording-backend)))
(letrec ((p1 (dummy-package "p1" (inputs `(("p3" ,p3)))))
(p2 (dummy-package "p2" (inputs `(("p1" ,p1)))))
(p3 (dummy-package "p3" (inputs `(("p2" ,p2) ("p1", p1))))))
(call-with-time-limit
600 ;; If ever this test should fail, we still want it to terminate
(lambda ()
(run-with-store %store
(export-graph (list p3) 'port
#:node-type %package-node-type
#:backend backend)))
(lambda ()
(run-with-store %store
(export-graph
(list (dummy-package "timeout-reached"))
'port
#:node-type %package-node-type
#:backend backend))))
;; We should see nothing more than these 3 packages.
(let-values (((nodes edges) (nodes+edges)))
(and (equal? nodes (map package->tuple (list p3 p2 p1)))
(equal? edges
(map edge->tuple
(list p3 p3 p2 p1)
(list p2 p1 p1 p3))))))))
(test-assert "reverse package DAG"
(let-values (((backend nodes+edges) (make-recording-backend)))
(run-with-store %store