;;;; 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))))))))