;;; Copyright © 2015 David Thompson <davet@gnu.org>
-
-;; This library is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU Lesser General Public
-;; License as published by the Free Software Foundation; either
-;; version 3 of the License, or (at your option) any later version.
-;;
-;; This library is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; Lesser General Public License for more details.
-;;
-;; You should have received a copy of the GNU Lesser General Public
-;; License along with this library; if not, write to the Free Software
-;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-;; 02110-1301 USA
+;;;
+;;; This library is free software; you can redistribute it and/or
+;;; modify it under the terms of the GNU Lesser General Public
+;;; License as published by the Free Software Foundation; either
+;;; version 3 of the License, or (at your option) any later version.
+;;;
+;;; This library is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;; Lesser General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU Lesser General Public
+;;; License along with this program. If not, see
+;;; <http://www.gnu.org/licenses/>.
;; Thanks for giving permission to license this under LGPL for
;; consistency, David!
(define-module (tests utils)
#:use-module (srfi srfi-64)
- #:export (test-exit))
+ #:export (test-exit
+
+ speak get-spoken with-fresh-speaker))
(define (test-exit)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))
+
+
+\f
+
+;;; display-like helpers
+;;; ====================
+
+(define (speak-it)
+ (let ((messages '()))
+ (lambda* (#:optional message)
+ (if message (set! messages (append messages (list message))))
+ messages)))
+
+(define %speaker (make-parameter (speak-it)))
+
+(define (speak message)
+ "Speak a message into the %speaker parameter"
+ ((%speaker) message))
+
+(define (get-spoken)
+ "Get what's been spoken in the %speaker parameter"
+ ((%speaker)))
+
+(define-syntax-rule (with-fresh-speaker body ...)
+ "Run body with a fresh %speaker"
+ (parameterize ((%speaker (speak-it)))
+ body ...))