summary refs log tree commit diff
path: root/tests/services.scm
diff options
context:
space:
mode:
Diffstat (limited to 'tests/services.scm')
-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 *)))