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authorLudovic Courtès <ludo@gnu.org>2022-07-10 12:39:44 +0200
committerLudovic Courtès <ludo@gnu.org>2022-07-10 23:57:14 +0200
commit9fdc4b6c283c5aa5cf10205d87fb2c58b829b9d0 (patch)
tree9458f4783146777e11efb0de96aa6677fe5d73d0 /tests/monads.scm
parentbf0a646a5bcde489b602c58fbb63a93acb9d08f6 (diff)
downloadguix-9fdc4b6c283c5aa5cf10205d87fb2c58b829b9d0.tar
guix-9fdc4b6c283c5aa5cf10205d87fb2c58b829b9d0.tar.gz
monads: Add 'mparameterize'.
* etc/system-tests.scm (mparameterize): Move to... * guix/monads.scm (mparameterize): ... here. * tests/monads.scm ("mparameterize"): New test. * .dir-locals.el (c-mode): Add it.
Diffstat (limited to 'tests/monads.scm')
-rw-r--r--tests/monads.scm15
1 files changed, 14 insertions, 1 deletions
diff --git a/tests/monads.scm b/tests/monads.scm
index 18bf4119be..19b74f4fb9 100644
--- a/tests/monads.scm
+++ b/tests/monads.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2022 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -137,6 +137,19 @@
%monads
%monad-run))
+(test-assert "mparameterize"
+ (let ((parameter (make-parameter 'outside)))
+ (every (lambda (monad run)
+ (equal?
+ (run (mlet monad ((outer (return (parameter)))
+ (inner
+ (mparameterize monad ((parameter 'inside))
+ (return (parameter)))))
+ (return (list outer inner (parameter)))))
+ '(outside inside outside)))
+ %monads
+ %monad-run)))
+
(test-assert "mlet* + text-file + package-file"
(run-with-store %store
(mlet* %store-monad ((guile (package-file %bootstrap-guile "bin/guile"))