From 5152d13b51a6418db52ce6dd572cc412e5addf44 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Wed, 14 Oct 2015 14:58:25 +0200 Subject: services: Export 'service-back-edges'. * gnu/services.scm: Export 'service-back-edges' and accessors. * tests/services.scm ("service-back-edges"): New test. --- tests/services.scm | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'tests') diff --git a/tests/services.scm b/tests/services.scm index b4e2cb0b30..ae2d999fee 100644 --- a/tests/services.scm +++ b/tests/services.scm @@ -25,6 +25,25 @@ (test-begin "services") +(test-assert "service-back-edges" + (let* ((t1 (service-type (name 't1) (extensions '()) + (compose +) (extend *))) + (t2 (service-type (name 't2) + (extensions + (list (service-extension t1 (const '())))) + (compose +) (extend *))) + (t3 (service-type (name 't3) + (extensions + (list (service-extension t2 identity) + (service-extension t1 list))))) + (s1 (service t1 #t)) + (s2 (service t2 #t)) + (s3 (service t3 #t)) + (e (service-back-edges (list s1 s2 s3)))) + (and (lset= eq? (e s1) (list s2 s3)) + (lset= eq? (e s2) (list s3)) + (null? (e s3))))) + (test-equal "fold-services" ;; Make sure 'fold-services' returns the right result. The numbers come ;; from services of type T3; 'xyz 60' comes from the service of type T2, -- cgit v1.2.3