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+;;;; testcover-unsafep.el -- Use testcover to test unsafep's code coverage
+
+;; Copyright (C) 2002 Free Software Foundation, Inc.
+
+;; Author: Jonathan Yavner <[email protected]>
+;; Maintainer: Jonathan Yavner <[email protected]>
+;; Keywords: safety lisp utility
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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.
+
+;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+(require 'testcover)
+
+;;;These forms are all considered safe
+(defconst testcover-unsafep-safe
+  '(((lambda (x) (* x 2)) 14)
+    (apply 'cdr (mapcar '(lambda (x) (car x)) y))
+    (cond ((= x 4) 5) (t 27))
+    (condition-case x (car y) (error (car x)))
+    (dolist (x y) (message "here: %s" x))
+    (dotimes (x 14 (* x 2)) (message "here: %d" x))
+    (let (x) (dolist (y '(1 2 3) (1+ y)) (push y x)))
+    (let (x) (apply '(lambda (x) (* x 2)) 14))
+    (let ((x '(2))) (push 1 x) (pop x) (add-to-list 'x 2))
+    (let ((x 1) (y 2)) (setq x (+ x y)))
+    (let ((x 1)) (let ((y (+ x 3))) (* x y)))
+    (let* nil (current-time))
+    (let* ((x 1) (y (+ x 3))) (* x y))
+    (mapcar (lambda (x &optional y &rest z) (setq y (+ x 2)) (* y 3)) '(1 2 3))
+    (mapconcat #'(lambda (var) (propertize var 'face 'bold)) '("1" "2") ", ")
+    (setq buffer-display-count 14 mark-active t)
+    ;;This is not safe if you insert it into a buffer!
+    (propertize "x" 'display '(height (progn (delete-file "x") 1))))
+  "List of forms that `unsafep' should decide are safe.")
+
+;;;These forms are considered unsafe
+(defconst testcover-unsafep-unsafe
+  '(( (add-to-list x y)
+      . (unquoted x))
+    ( (add-to-list y x)
+      . (unquoted y))
+    ( (add-to-list 'y x)
+      . (global-variable y))
+    ( (not (delete-file "unsafep.el"))
+      . (function delete-file))
+    ( (cond (t (aset local-abbrev-table 0 0)))
+      . (function aset))
+    ( (cond (t (setq unsafep-vars "")))
+      . (risky-local-variable unsafep-vars))
+    ( (condition-case format-alist 1)
+      . (risky-local-variable format-alist))
+    ( (condition-case x 1 (error (setq format-alist "")))
+      . (risky-local-variable format-alist))
+    ( (dolist (x (sort globalvar 'car)) (princ x))
+      . (function sort))
+    ( (dotimes (x 14) (delete-file "x"))
+      . (function delete-file))
+    ( (let ((post-command-hook "/tmp/")) 1)
+      . (risky-local-variable post-command-hook))
+    ( (let ((x (delete-file "x"))) 2)
+      . (function delete-file))
+    ( (let (x) (add-to-list 'x (delete-file "x")))
+      . (function delete-file))
+    ( (let (x) (condition-case y (setq x 1 z 2)))
+      . (global-variable z))
+    ( (let (x) (condition-case z 1 (error (delete-file "x"))))
+      . (function delete-file))
+    ( (let (x) (mapc (lambda (x) (setcar x 1)) '((1 . 2) (3 . 4))))
+      . (function setcar))
+    ( (let (y) (push (delete-file "x") y))
+      . (function delete-file))
+    ( (let* ((x 1)) (setq y 14))
+      . (global-variable y))
+    ( (mapc 'car (list '(1 . 2) (cons 3 4) (kill-buffer "unsafep.el")))
+      . (function kill-buffer))
+    ( (mapcar x y)
+      . (unquoted x))
+    ( (mapcar '(lambda (x) (rename-file x "x")) '("unsafep.el"))
+      . (function rename-file))
+    ( (mapconcat x1 x2 " ")
+      . (unquoted x1))
+    ( (pop format-alist)
+      . (risky-local-variable format-alist))
+    ( (push 1 format-alist)
+      . (risky-local-variable format-alist))
+    ( (setq buffer-display-count (delete-file "x"))
+      . (function delete-file))
+    ;;These are actualy safe (they signal errors)
+    ( (apply '(x) '(1 2 3))
+      . (function (x)))
+    ( (let (((x))) 1)
+      . (variable (x)))
+    ( (let (1) 2)
+      . (variable 1))
+    )
+  "A-list of (FORM . REASON)... that`unsafep' should decide are unsafe.")
+
+
+;;;#########################################################################
+(defun testcover-unsafep ()
+  "Executes all unsafep tests and displays the coverage results."
+  (interactive)
+  (testcover-unmark-all "unsafep.el")
+  (testcover-start "unsafep.el")
+  (let (save-functions)
+    (dolist (x testcover-unsafep-safe)
+      (if (unsafep x)
+	  (error "%S should be safe" x)))
+    (dolist (x testcover-unsafep-unsafe)
+      (if (not (equal (unsafep (car x)) (cdr x)))
+	  (error "%S should be unsafe: %s" (car x) (cdr x))))
+    (setq safe-functions t)
+    (if (or (unsafep '(delete-file "x"))
+	    (unsafep-function 'delete-file))
+	(error "safe-functions=t should allow delete-file"))
+    (setq safe-functions '(setcar))
+    (if (unsafep '(setcar x 1))
+	(error "safe-functions=(setcar) should allow setcar"))
+    (if (not (unsafep '(setcdr x 1)))
+	(error "safe-functions=(setcar) should not allow setcdr")))
+  (testcover-mark-all "unsafep.el")
+  (testcover-end "unsafep.el")
+  (message "Done"))
+
+;; testcover-unsafep.el ends here.