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-rw-r--r--gnu/tests.scm22
1 files changed, 21 insertions, 1 deletions
diff --git a/gnu/tests.scm b/gnu/tests.scm
index 7ca80ebf0e..348b5ad40f 100644
--- a/gnu/tests.scm
+++ b/gnu/tests.scm
@@ -22,7 +22,8 @@
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:export (marionette-service-type
- marionette-operating-system))
+ marionette-operating-system
+ define-os-with-source))
;;; Commentary:
;;;
@@ -127,4 +128,23 @@ in a virtual machine--i.e., controlled from the host system."
(services (cons (service marionette-service-type imported-modules)
(operating-system-user-services os)))))
+(define-syntax define-os-with-source
+ (syntax-rules (use-modules operating-system)
+ "Define two variables: OS containing the given operating system, and
+SOURCE containing the source to define OS as an sexp.
+
+This is convenient when we need both the <operating-system> object so we can
+instantiate it, and the source to create it so we can store in in a file in
+the system under test."
+ ((_ (os source)
+ (use-modules modules ...)
+ (operating-system fields ...))
+ (begin
+ (define os
+ (operating-system fields ...))
+ (define source
+ '(begin
+ (use-modules modules ...)
+ (operating-system fields ...)))))))
+
;;; tests.scm ends here