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+;;;; hooks.test --- tests guile's hooks implementation -*- scheme -*-
+;;;; Copyright (C) 1999, 2001, 2006, 2009, 2010 Free Software Foundation, Inc.
+;;;;
+;;;; 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
+
+(define-module (test-suite test-hooks)
+ #:use-module (test-suite lib))
+
+;;;
+;;; miscellaneous
+;;;
+
+;; FIXME: Maybe a standard wrong-num-arg exception should be thrown instead
+;; of a misc-error? If so, the tests should be changed to expect failure.
+(define exception:wrong-num-hook-args
+ (cons 'misc-error "Hook .* requires .* arguments"))
+
+;;;
+;;; {The tests}
+;;;
+
+(let ((proc1 (lambda (x) (+ x 1)))
+ (proc2 (lambda (x) (- x 1)))
+ (bad-proc (lambda (x y) #t)))
+ (with-test-prefix "hooks"
+ (pass-if "make-hook"
+ (make-hook 1)
+ #t)
+
+ (pass-if "add-hook!"
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ #t))
+
+ (with-test-prefix "add-hook!"
+ (pass-if "append"
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2 #t)
+ (eq? (cadr (hook->list x))
+ proc2)))
+ (pass-if-exception "illegal proc"
+ exception:wrong-type-arg
+ (let ((x (make-hook 1)))
+ (add-hook! x bad-proc)))
+ (pass-if-exception "illegal hook"
+ exception:wrong-type-arg
+ (add-hook! '(foo) proc1)))
+ (pass-if "run-hook"
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (run-hook x 1)
+ #t))
+ (with-test-prefix "run-hook"
+ (pass-if-exception "bad hook"
+ exception:wrong-type-arg
+ (let ((x (cons 'a 'b)))
+ (run-hook x 1)))
+ (pass-if-exception "too many args"
+ exception:wrong-num-hook-args
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (run-hook x 1 2)))
+
+ (pass-if
+ "destructive procs"
+ (let ((x (make-hook 1))
+ (dest-proc1 (lambda (x)
+ (set-car! x
+ 'i-sunk-your-battleship)))
+ (dest-proc2 (lambda (x) (set-cdr! x 'no-way!)))
+ (val '(a-game-of battleship)))
+ (add-hook! x dest-proc1)
+ (add-hook! x dest-proc2 #t)
+ (run-hook x val)
+ (and (eq? (car val) 'i-sunk-your-battleship)
+ (eq? (cdr val) 'no-way!)))))
+
+ (with-test-prefix "remove-hook!"
+ (pass-if ""
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (remove-hook! x proc1)
+ (not (memq proc1 (hook->list x)))))
+ ; Maybe it should error, but this is probably
+ ; more convienient
+ (pass-if "empty hook"
+ (let ((x (make-hook 1)))
+ (remove-hook! x proc1)
+ #t)))
+ (pass-if "hook->list"
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (and (memq proc1 (hook->list x))
+ (memq proc2 (hook->list x))
+ #t)))
+ (pass-if "reset-hook!"
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (reset-hook! x)
+ (null? (hook->list x))))
+ (with-test-prefix "reset-hook!"
+ (pass-if "empty hook"
+ (let ((x (make-hook 1)))
+ (reset-hook! x)
+ #t))
+ (pass-if-exception "bad hook"
+ exception:wrong-type-arg
+ (reset-hook! '(a b))))))