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;;; syntax-tests.el --- Testing syntax rules and basic movement -*- lexical-binding: t -*-
;; Copyright (C) 2014-2017 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
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