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-rw-r--r--tests/services.scm11
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/services.scm b/tests/services.scm
index 7983427a7d..8484ee982a 100644
--- a/tests/services.scm
+++ b/tests/services.scm
@@ -31,6 +31,17 @@
(test-begin "services")
+(test-equal "services, default value"
+ '(42 123 234 error)
+ (let* ((t1 (service-type (name 't1) (extensions '())))
+ (t2 (service-type (name 't2) (extensions '())
+ (default-value 42))))
+ (list (service-value (service t2))
+ (service-value (service t2 123))
+ (service-value (service t1 234))
+ (guard (c ((missing-value-service-error? c) 'error))
+ (service t1)))))
+
(test-assert "service-back-edges"
(let* ((t1 (service-type (name 't1) (extensions '())
(compose +) (extend *)))