--- /dev/null
+;;;; hooks.test --- tests guile's hooks implementation -*- scheme -*-
+;;;; Copyright (C) 1999 Free Software Foundation, Inc.
+;;;;
+;;;; This program is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation; either version 2, or (at your option)
+;;;; any later version.
+;;;;
+;;;; This program 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 General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with this software; see the file COPYING. If not, write to
+;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+;;;; Boston, MA 02111-1307 USA
+;;;;
+;;;; As a special exception, the Free Software Foundation gives permission
+;;;; for additional uses of the text contained in its release of GUILE.
+;;;;
+;;;; The exception is that, if you link the GUILE library with other files
+;;;; to produce an executable, this does not by itself cause the
+;;;; resulting executable to be covered by the GNU General Public License.
+;;;; Your use of that executable is in no way restricted on account of
+;;;; linking the GUILE library code into it.
+;;;;
+;;;; This exception does not however invalidate any other reasons why
+;;;; the executable file might be covered by the GNU General Public License.
+;;;;
+;;;; This exception applies only to the code released by the
+;;;; Free Software Foundation under the name GUILE. If you copy
+;;;; code from other Free Software Foundation releases into a copy of
+;;;; GUILE, as the General Public License permits, the exception does
+;;;; not apply to the code that you add in this way. To avoid misleading
+;;;; anyone as to the status of such modified files, you must delete
+;;;; this exception notice from them.
+;;;;
+;;;; If you write modifications of your own for GUILE, it is your choice
+;;;; whether to permit this exception to apply to your modifications.
+;;;; If you do not wish that, delete this exception notice.
+
+;;; {Description}
+;;;
+;;; A test suite for hooks. I maybe should've split off some of the
+;;; stuff (like with alists), but this is small enough that it
+;;; probably isn't worth the hassle. A little note: in some places it
+;;; catches all errors when it probably shouldn't, since there's only
+;;; one error we consider correct. This is mostly because the
+;;; add-hook! error in released guiles isn't really accurate
+;;; This should be changed once a released version returns
+;;; wrong-type-arg from add-hook!
+
+;; {Utility stuff}
+;; Evaluate form inside a catch; if it throws an error, return true
+;; This is good for checking that errors are not ignored
+
+(define-macro (catch-error-returning-true error . form)
+ `(catch ,error (lambda () (begin ,@form #f)) (lambda (key . args) #t)))
+
+;; Evaluate form inside a catch; if it throws an error, return false
+;; Good for making sure that errors don't occur
+
+(define-macro (catch-error-returning-false error . form)
+ `(catch ,error (lambda () (begin ,@form #t)) (lambda (key . args) #f)))
+
+;; pass-if-not: syntactic sugar
+
+(define-macro (pass-if-not string form)
+ `(pass-if ,string (not ,form)))
+
+;; {The tests}
+(catch-test-errors
+ (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"
+ (catch-error-returning-false
+ #t
+ (define x (make-hook 1))))
+
+ (pass-if "add-hook!"
+ (catch-error-returning-false
+ #t
+ (let ((x (make-hook 1)))
+ (add-hook! x proc1)
+ (add-hook! x proc2))))
+
+ (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 "illegal proc"
+ (catch-error-returning-true
+ #t
+ (let ((x (make-hook 1)))
+ (add-hook! x bad-proc))))
+ (pass-if "illegal hook"
+ (catch-error-returning-true
+ 'wrong-type-arg
+ (add-hook! '(foo) proc1))))
+ (pass-if "run-hook"
+ (let ((x (make-hook 1)))
+ (catch-error-returning-false #t
+ (add-hook! x proc1)
+ (add-hook! x proc2)
+ (run-hook x 1))))
+ (with-test-prefix "run-hook"
+ (pass-if "bad hook"
+ (catch-error-returning-true
+ #t
+ (let ((x (cons 'a 'b)))
+ (run-hook x 1))))
+ (pass-if "too many args"
+ (let ((x (make-hook 1)))
+ (catch-error-returning-true
+ #t
+ (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!)))))
+
+ (pass-if "make-hook-with-name"
+ (catch-error-returning-false
+ #t
+ (let ((x (make-hook-with-name 'x 1)))
+ (add-hook! x proc1))))
+ (pass-if "make-hook-with-name: bad name"
+ (catch-error-returning-true
+ 'wrong-type-arg
+ (define x (make-hook-with-name '(a b) 1))))
+
+ (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"
+ (catch-error-returning-false
+ #t
+ (let ((x (make-hook 1)))
+ (remove-hook! x proc1)))))
+ (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)))))
+ (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)))
+ (pass-if "bad hook"
+ (catch-error-returning-true
+ #t
+ (reset-hook! '(a b))))))))
HCoop / bpt / guile.git / commitdiff