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;;; checkdoc-tests.el --- unit tests for checkdoc.el -*- lexical-binding: t; -*-
;; Copyright (C) 2016-2021 Free Software Foundation, Inc.
;; Author: Philipp Stephani <phst@google.com>
;; 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/>.
;;; Commentary:
;; Unit tests for lisp/emacs-lisp/checkdoc.el.
;;; Code:
(require 'checkdoc)
(require 'elisp-mode)
(require 'ert)
(ert-deftest checkdoc-tests--bug-24998 ()
"Checks that Bug#24998 is fixed."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(defun foo())")
(should-error (checkdoc-defun) :type 'user-error)))
(ert-deftest checkdoc-cl-defmethod-ok ()
"Checkdoc should be happy with a simple correct cl-defmethod."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defmethod foo (a) \"Return A.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defmethod-with-types-ok ()
"Checkdoc should be happy with a cl-defmethod using types."
(with-temp-buffer
(emacs-lisp-mode)
;; this method matches if A is the symbol `smthg' and if b is a list:
(insert "(cl-defmethod foo ((a (eql 'smthg)) (b list)) \"Return A+B.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defmethod-qualified-ok ()
"Checkdoc should be happy with a `cl-defmethod' using qualifiers."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defmethod test :around ((a (eql 'smthg))) \"Return A.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defmethod-with-extra-qualifier-ok ()
"Checkdoc should be happy with a :extra qualified `cl-defmethod'."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defmethod foo :extra \"foo\" ((a (eql 'smthg))) \"Return A.\")")
(checkdoc-defun))
(with-temp-buffer
(emacs-lisp-mode)
(insert
"(cl-defmethod foo :extra \"foo\" :after ((a (eql 'smthg))) \"Return A.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defmethod-with-extra-qualifier-and-nil-args-ok ()
"Checkdoc should be happy with a 0-arity :extra qualified `cl-defmethod'."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defmethod foo :extra \"foo\" () \"Return A.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defun-with-key-ok ()
"Checkdoc should be happy with a cl-defun using &key."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defun foo (&key a (b 27)) \"Return :A+:B.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defun-with-allow-other-keys-ok ()
"Checkdoc should be happy with a cl-defun using &allow-other-keys."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defun foo (&key a &allow-other-keys) \"Return :A.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defun-with-default-optional-value-ok ()
"Checkdoc should be happy with a cl-defun using default values for optional args."
(with-temp-buffer
(emacs-lisp-mode)
;; B is optional and equals 1+a if not provided. HAS-BS is non-nil
;; if B was provided in the call:
(insert "(cl-defun foo (a &optional (b (1+ a) has-bs)) \"Return A + B.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-cl-defun-with-destructuring-ok ()
"Checkdoc should be happy with a cl-defun destructuring its arguments."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(cl-defun foo ((a b &optional c) d) \"Return A+B+C+D.\")")
(checkdoc-defun)))
(ert-deftest checkdoc-tests--next-docstring ()
"Checks that the one-argument form of `defvar' works.
See the comments in Bug#24998."
(with-temp-buffer
(emacs-lisp-mode)
(insert "(defvar foo)
\(defvar foo bar \"baz\")
\(require 'foo)")
(goto-char (point-min))
(should (checkdoc-next-docstring))
(should (looking-at-p "\"baz\")"))
(should-not (checkdoc-next-docstring))))
;;; checkdoc-tests.el ends here
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