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+;;; syntax-tests.el --- Testing syntax rules and basic movement -*- lexical-binding: t -*-
+
+;; Copyright (C) 2014-2015 Free Software Foundation, Inc.
+
+;; Author: Daniel Colascione <dancol@dancol.org>
+;; Keywords:
+
+;; 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 3 of the License, 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+(require 'ert)
+(require 'cl-lib)
+
+(defun run-up-list-test (fn data start instructions)
+ (cl-labels ((posof (thing)
+ (and (symbolp thing)
+ (= (length (symbol-name thing)) 1)
+ (- (aref (symbol-name thing) 0) ?a -1))))
+ (with-temp-buffer
+ (set-syntax-table (make-syntax-table))
+ ;; Use a syntax table in which single quote is a string
+ ;; character so that we can embed the test data in a lisp string
+ ;; literal.
+ (modify-syntax-entry ?\' "\"")
+ (insert data)
+ (goto-char (posof start))
+ (dolist (instruction instructions)
+ (cond ((posof instruction)
+ (funcall fn)
+ (should (eql (point) (posof instruction))))
+ ((symbolp instruction)
+ (should-error (funcall fn)
+ :type instruction))
+ (t (cl-assert nil nil "unknown ins")))))))
+
+(defmacro define-up-list-test (name fn data start &rest expected)
+ `(ert-deftest ,name ()
+ (run-up-list-test ,fn ,data ',start ',expected)))
+
+(define-up-list-test up-list-basic
+ (lambda () (up-list))
+ (or "(1 1 (1 1) 1 (1 1) 1)")
+ ;; abcdefghijklmnopqrstuv
+ i k v scan-error)
+
+(define-up-list-test up-list-with-forward-sexp-function
+ (lambda ()
+ (let ((forward-sexp-function
+ (lambda (&optional arg)
+ (let ((forward-sexp-function nil))
+ (forward-sexp arg)))))
+ (up-list)))
+ (or "(1 1 (1 1) 1 (1 1) 1)")
+ ;; abcdefghijklmnopqrstuv
+ i k v scan-error)
+
+(define-up-list-test up-list-out-of-string
+ (lambda () (up-list 1 t))
+ (or "1 (1 '2 2 (2 2 2' 1) 1")
+ ;; abcdefghijklmnopqrstuvwxy
+ o r u scan-error)
+
+(define-up-list-test up-list-cross-string
+ (lambda () (up-list 1 t))
+ (or "(1 '2 ( 2' 1 '2 ) 2' 1)")
+ ;; abcdefghijklmnopqrstuvwxy
+ i r u x scan-error)
+
+(define-up-list-test up-list-no-cross-string
+ (lambda () (up-list 1 t t))
+ (or "(1 '2 ( 2' 1 '2 ) 2' 1)")
+ ;; abcdefghijklmnopqrstuvwxy
+ i k x scan-error)
+
+(define-up-list-test backward-up-list-basic
+ (lambda () (backward-up-list))
+ (or "(1 1 (1 1) 1 (1 1) 1)")
+ ;; abcdefghijklmnopqrstuv
+ i f a scan-error)
+
+(provide 'syntax-tests)
+;;; syntax-tests.el ends here