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122 lines
4.3 KiB
EmacsLisp
122 lines
4.3 KiB
EmacsLisp
;;; help-fns.el --- tests for help-fns.el
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;; Copyright (C) 2014-2019 Free Software Foundation, Inc.
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;; Maintainer: emacs-devel@gnu.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'ert)
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(autoload 'help-fns-test--macro "help-fns" nil nil t)
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;;; Several tests for describe-function
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(defun help-fns-tests--describe-function (func)
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"Helper function for `describe-function' tests.
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FUNC is the function to describe, a symbol.
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Return first line of the output of (describe-function-1 FUNC)."
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(let ((string (with-output-to-string
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(describe-function-1 func))))
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(string-match "\\(.+\\)\n" string)
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(match-string-no-properties 1 string)))
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(ert-deftest help-fns-test-bug17410 ()
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"Test for https://debbugs.gnu.org/17410 ."
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(let ((regexp "autoloaded Lisp macro")
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(result (help-fns-tests--describe-function 'help-fns-test--macro)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-built-in ()
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(let ((regexp "a built-in function in .C source code")
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(result (help-fns-tests--describe-function 'mapcar)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-interactive-built-in ()
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(let ((regexp "an interactive built-in function in .C source code")
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(result (help-fns-tests--describe-function 're-search-forward)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-lisp-macro ()
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(let ((regexp "a Lisp macro in .subr\.el")
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(result (help-fns-tests--describe-function 'when)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-lisp-defun ()
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(let ((regexp "a compiled Lisp function in .subr\.el")
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(result (help-fns-tests--describe-function 'last)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-lisp-defsubst ()
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(let ((regexp "a compiled Lisp function in .subr\.el")
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(result (help-fns-tests--describe-function 'posn-window)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-alias-to-defun ()
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(let ((regexp "an alias for .set-file-modes. in .subr\.el")
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(result (help-fns-tests--describe-function 'chmod)))
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(should (string-match regexp result))))
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(ert-deftest help-fns-test-bug23887 ()
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"Test for https://debbugs.gnu.org/23887 ."
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(let ((regexp "an alias for .re-search-forward. in .subr\.el")
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(result (help-fns-tests--describe-function 'search-forward-regexp)))
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(should (string-match regexp result))))
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;;; Test describe-function over functions with funny names
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(defun abc\\\[universal-argument\]b\`c\'d\\e\"f (x)
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"A function with a funny name.
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\(fn XYZZY)"
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x)
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(defun defgh\\\[universal-argument\]b\`c\'d\\e\"f (x)
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"Another function with a funny name."
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x)
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(ert-deftest help-fns-test-funny-names ()
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"Test for help with functions with funny names."
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(describe-function 'abc\\\[universal-argument\]b\`c\'d\\e\"f)
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(with-current-buffer "*Help*"
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(goto-char (point-min))
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(should (search-forward
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"(abc\\\\\\[universal-argument\\]b\\`c\\'d\\\\e\\\"f XYZZY)")))
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(describe-function 'defgh\\\[universal-argument\]b\`c\'d\\e\"f)
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(with-current-buffer "*Help*"
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(goto-char (point-min))
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(should (search-forward
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"(defgh\\\\\\[universal-argument\\]b\\`c\\'d\\\\e\\\"f X)"))))
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;;; Test for describe-symbol
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(ert-deftest help-fns-test-describe-symbol ()
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"Test the `describe-symbol' function."
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;; 'describe-symbol' would originally signal an error for
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;; 'font-lock-comment-face'.
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(describe-symbol 'font-lock-comment-face)
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(with-current-buffer "*Help*"
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(should (> (point-max) 1))
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(goto-char (point-min))
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(should (looking-at "^font-lock-comment-face is "))))
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;;; help-fns.el ends here
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