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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-services)
#:use-module (gnu services)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-64))
(test-begin "services")
(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,
;; where 60 = 15 × 4 = (1 + 2 + 3 + 4 + 5) × 4.
'(initial-value 5 4 3 2 1 xyz 60)
(let* ((t1 (service-type (name 't1) (extensions '())
(compose concatenate)
(extend cons)))
(t2 (service-type (name 't2)
(extensions
(list (service-extension t1
(cut list 'xyz <>))))
(compose (cut reduce + 0 <>))
(extend *)))
(t3 (service-type (name 't3)
(extensions
(list (service-extension t2 identity)
(service-extension t1 list)))))
(r (fold-services (cons* (service t1 'initial-value)
(service t2 4)
(map (lambda (x)
(service t3 x))
(iota 5 1)))
#:target-type t1)))
(and (eq? (service-kind r) t1)
(service-parameters r))))
(test-assert "fold-services, ambiguity"
(let* ((t1 (service-type (name 't1) (extensions '())
(compose concatenate)
(extend cons)))
(t2 (service-type (name 't2)
(extensions
(list (service-extension t1 list)))))
(s (service t2 42)))
(guard (c ((ambiguous-target-service-error? c)
(and (eq? (ambiguous-target-service-error-target-type c)
t1)
(eq? (ambiguous-target-service-error-service c)
s))))
(fold-services (list (service t1 'first)
(service t1 'second)
s)
#:target-type t1)
#f)))
(test-assert "fold-services, missing target"
(let* ((t1 (service-type (name 't1) (extensions '())))
(t2 (service-type (name 't2)
(extensions
(list (service-extension t1 list)))))
(s (service t2 42)))
(guard (c ((missing-target-service-error? c)
(and (eq? (missing-target-service-error-target-type c)
t1)
(eq? (missing-target-service-error-service c)
s))))
(fold-services (list s) #:target-type t1)
#f)))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0))
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