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-rw-r--r--tests/services.scm32
1 files changed, 31 insertions, 1 deletions
diff --git a/tests/services.scm b/tests/services.scm
index ca32b565c4..b146a0dec2 100644
--- a/tests/services.scm
+++ b/tests/services.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -122,6 +122,36 @@
(fold-services (list s) #:target-type t1)
#f)))
+(test-assert "instantiate-missing-services"
+ (let* ((t1 (service-type (name 't1) (extensions '())
+ (default-value 'dflt)
+ (compose concatenate)
+ (extend cons)))
+ (t2 (service-type (name 't2)
+ (extensions
+ (list (service-extension t1 list)))))
+ (s1 (service t1 'hey!))
+ (s2 (service t2 42)))
+ (and (lset= equal?
+ (list (service t1) s2)
+ (instantiate-missing-services (list s2)))
+ (equal? (list s1 s2)
+ (instantiate-missing-services (list s1 s2))))))
+
+(test-assert "instantiate-missing-services, no default value"
+ (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))))
+ (instantiate-missing-services (list s))
+ #f)))
+
(test-assert "shepherd-service-lookup-procedure"
(let* ((s1 (shepherd-service (provision '(s1 s1b)) (start #f)))
(s2 (shepherd-service (provision '(s2 s2b)) (start #f)))