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;;; shortdoc-tests.el --- tests for shortdoc.el -*- lexical-binding: t -*-
;; Copyright (C) 2021 Free Software Foundation, Inc.
;; 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 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
(require 'ert)
(require 'shortdoc)
(defun shortdoc-tests--tree-contains (tree fun)
"Whether TREE contains a call to FUN."
(and (proper-list-p tree)
(or (eq (car tree) fun)
(cl-some (lambda (x) (shortdoc-tests--tree-contains x fun)) tree))))
(ert-deftest shortdoc-examples ()
"Check that each example actually contains the corresponding form."
(dolist (group shortdoc--groups)
(dolist (item group)
(when (consp item)
(let ((fun (car item))
(props (cdr item)))
(while props
(when (memq (car props) '(:eval :no-eval :no-eval* :no-value))
(let* ((example (cadr props))
(expr (cond
((consp example) example)
((stringp example) (read example)))))
(should (shortdoc-tests--tree-contains expr fun))))
(setq props (cddr props))))))))
(provide 'shortdoc-tests)
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