| 1 | ;;;; hooks.test --- tests guile's hooks implementation -*- scheme -*- |
| 2 | ;;;; Copyright (C) 1999 Free Software Foundation, Inc. |
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| 42 | |
| 43 | ;;; {Description} |
| 44 | ;;; |
| 45 | ;;; A test suite for hooks. I maybe should've split off some of the |
| 46 | ;;; stuff (like with alists), but this is small enough that it |
| 47 | ;;; probably isn't worth the hassle. A little note: in some places it |
| 48 | ;;; catches all errors when it probably shouldn't, since there's only |
| 49 | ;;; one error we consider correct. This is mostly because the |
| 50 | ;;; add-hook! error in released guiles isn't really accurate |
| 51 | ;;; This should be changed once a released version returns |
| 52 | ;;; wrong-type-arg from add-hook! |
| 53 | |
| 54 | ;; {Utility stuff} |
| 55 | ;; Evaluate form inside a catch; if it throws an error, return true |
| 56 | ;; This is good for checking that errors are not ignored |
| 57 | |
| 58 | (define-macro (catch-error-returning-true error . form) |
| 59 | `(catch ,error (lambda () (begin ,@form #f)) (lambda (key . args) #t))) |
| 60 | |
| 61 | ;; Evaluate form inside a catch; if it throws an error, return false |
| 62 | ;; Good for making sure that errors don't occur |
| 63 | |
| 64 | (define-macro (catch-error-returning-false error . form) |
| 65 | `(catch ,error (lambda () (begin ,@form #t)) (lambda (key . args) #f))) |
| 66 | |
| 67 | ;; pass-if-not: syntactic sugar |
| 68 | |
| 69 | (define-macro (pass-if-not string form) |
| 70 | `(pass-if ,string (not ,form))) |
| 71 | |
| 72 | ;; {The tests} |
| 73 | (let ((proc1 (lambda (x) (+ x 1))) |
| 74 | (proc2 (lambda (x) (- x 1))) |
| 75 | (bad-proc (lambda (x y) #t))) |
| 76 | (with-test-prefix "hooks" |
| 77 | (pass-if "make-hook" |
| 78 | (catch-error-returning-false |
| 79 | #t |
| 80 | (define x (make-hook 1)))) |
| 81 | |
| 82 | (pass-if "add-hook!" |
| 83 | (catch-error-returning-false |
| 84 | #t |
| 85 | (let ((x (make-hook 1))) |
| 86 | (add-hook! x proc1) |
| 87 | (add-hook! x proc2)))) |
| 88 | |
| 89 | (with-test-prefix "add-hook!" |
| 90 | (pass-if "append" |
| 91 | (let ((x (make-hook 1))) |
| 92 | (add-hook! x proc1) |
| 93 | (add-hook! x proc2 #t) |
| 94 | (eq? (cadr (hook->list x)) |
| 95 | proc2))) |
| 96 | (pass-if "illegal proc" |
| 97 | (catch-error-returning-true |
| 98 | #t |
| 99 | (let ((x (make-hook 1))) |
| 100 | (add-hook! x bad-proc)))) |
| 101 | (pass-if "illegal hook" |
| 102 | (catch-error-returning-true |
| 103 | 'wrong-type-arg |
| 104 | (add-hook! '(foo) proc1)))) |
| 105 | (pass-if "run-hook" |
| 106 | (let ((x (make-hook 1))) |
| 107 | (catch-error-returning-false #t |
| 108 | (add-hook! x proc1) |
| 109 | (add-hook! x proc2) |
| 110 | (run-hook x 1)))) |
| 111 | (with-test-prefix "run-hook" |
| 112 | (pass-if "bad hook" |
| 113 | (catch-error-returning-true |
| 114 | #t |
| 115 | (let ((x (cons 'a 'b))) |
| 116 | (run-hook x 1)))) |
| 117 | (pass-if "too many args" |
| 118 | (let ((x (make-hook 1))) |
| 119 | (catch-error-returning-true |
| 120 | #t |
| 121 | (add-hook! x proc1) |
| 122 | (add-hook! x proc2) |
| 123 | (run-hook x 1 2)))) |
| 124 | |
| 125 | (pass-if |
| 126 | "destructive procs" |
| 127 | (let ((x (make-hook 1)) |
| 128 | (dest-proc1 (lambda (x) |
| 129 | (set-car! x |
| 130 | 'i-sunk-your-battleship))) |
| 131 | (dest-proc2 (lambda (x) (set-cdr! x 'no-way!))) |
| 132 | (val '(a-game-of battleship))) |
| 133 | (add-hook! x dest-proc1) |
| 134 | (add-hook! x dest-proc2 #t) |
| 135 | (run-hook x val) |
| 136 | (and (eq? (car val) 'i-sunk-your-battleship) |
| 137 | (eq? (cdr val) 'no-way!))))) |
| 138 | |
| 139 | (with-test-prefix "remove-hook!" |
| 140 | (pass-if "" |
| 141 | (let ((x (make-hook 1))) |
| 142 | (add-hook! x proc1) |
| 143 | (add-hook! x proc2) |
| 144 | (remove-hook! x proc1) |
| 145 | (not (memq proc1 (hook->list x))))) |
| 146 | ; Maybe it should error, but this is probably |
| 147 | ; more convienient |
| 148 | (pass-if "empty hook" |
| 149 | (catch-error-returning-false |
| 150 | #t |
| 151 | (let ((x (make-hook 1))) |
| 152 | (remove-hook! x proc1))))) |
| 153 | (pass-if "hook->list" |
| 154 | (let ((x (make-hook 1))) |
| 155 | (add-hook! x proc1) |
| 156 | (add-hook! x proc2) |
| 157 | (and (memq proc1 (hook->list x) ) |
| 158 | (memq proc2 (hook->list x))))) |
| 159 | (pass-if "reset-hook!" |
| 160 | (let ((x (make-hook 1))) |
| 161 | (add-hook! x proc1) |
| 162 | (add-hook! x proc2) |
| 163 | (reset-hook! x) |
| 164 | (null? (hook->list x)))) |
| 165 | (with-test-prefix "reset-hook!" |
| 166 | (pass-if "empty hook" |
| 167 | (let ((x (make-hook 1))) |
| 168 | (reset-hook! x))) |
| 169 | (pass-if "bad hook" |
| 170 | (catch-error-returning-true |
| 171 | #t |
| 172 | (reset-hook! '(a b))))))) |