126 lines
4.7 KiB
EmacsLisp
126 lines
4.7 KiB
EmacsLisp
;;; find-func-tests.el --- Unit tests for find-func.el -*- lexical-binding: t; -*-
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;; Copyright (C) 2020-2024 Free Software Foundation, Inc.
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;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
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;; Keywords:
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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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;;
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;;; Code:
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(require 'ert-x) ;For `ert-simulate-keys'.
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(require 'find-func)
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(ert-deftest find-func-tests--library-completion () ;bug#43393
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;; FIXME: How can we make this work in batch (see also
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;; `mule-cmds--test-universal-coding-system-argument')?
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;; (skip-when noninteractive)
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;; Check that `partial-completion' works when completing library names.
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(should (equal "org/org"
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(ert-simulate-keys
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(kbd "o / o r g TAB RET")
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(read-library-name))))
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;; Check that absolute file names also work.
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(should (equal (expand-file-name "nxml/" data-directory)
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(ert-simulate-keys
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(concat data-directory (kbd "n x / TAB RET"))
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(read-library-name)))))
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(ert-deftest find-func-tests--locate-symbols ()
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(should (cdr
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(find-function-search-for-symbol
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#'goto-line nil "simple")))
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(should (cdr
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(find-function-search-for-symbol
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'minibuffer-history 'defvar "simple")))
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(should (cdr
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(find-function-search-for-symbol
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'with-current-buffer nil "subr")))
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(should (cdr
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(find-function-search-for-symbol
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'font-lock-warning-face 'defface "font-lock")))
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(should-not (cdr
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(find-function-search-for-symbol
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'wrong-variable 'defvar "simple")))
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(should-not (cdr
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(find-function-search-for-symbol
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'wrong-function nil "simple")))
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(should (cdr (find-function-noselect #'goto-line)))
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(should (cdr (find-function-noselect #'goto-char)))
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;; Setting LISP-ONLY and passing a primitive should error.
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(should-error (find-function-noselect #'goto-char t))
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(should-error (find-function-noselect 'wrong-function)))
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(defun test-locate-helper (func &optional expected-result)
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"Assert on the result of `find-function-library' for FUNC.
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EXPECTED-RESULT is an alist (FUNC . LIBRARY) with the
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expected function symbol and function library, respectively."
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(cl-destructuring-bind (orig-function . library)
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(find-function-library func)
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(cl-destructuring-bind (expected-func . expected-library)
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expected-result
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(should (eq orig-function expected-func))
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(should (and
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(not (string-empty-p expected-library))
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(string-match-p expected-library library))))))
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(ert-deftest find-func-tests--locate-library ()
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(test-locate-helper #'goto-line '(goto-line . "simple"))
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(test-locate-helper #'forward-char '(forward-char . "cmds.c"))
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(should-error (test-locate-helper 'wrong-function)))
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(ert-deftest find-func-tests--locate-advised-symbols ()
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(defun my-message ()
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(message "Hello!"))
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(advice-add #'mark-sexp :around 'my-message)
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(test-locate-helper #'mark-sexp '(mark-sexp . "lisp"))
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(advice-remove #'mark-sexp 'my-message))
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(ert-deftest find-func-tests--find-library-verbose ()
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(unwind-protect
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(progn
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(advice-add 'dired :before #'ignore)
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;; bug#41104
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(should (equal (find-function-library #'dired) '(dired . "dired"))))
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(advice-remove 'dired #'ignore))
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(find-function-library #'join-line nil t)
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(with-current-buffer "*Messages*"
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(save-excursion
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(goto-char (point-max))
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(skip-chars-backward "\n")
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(should (string-match-p
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".join-line. is an alias for .delete-indentation."
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(buffer-substring (pos-bol) (point)))))))
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;; Avoid a byte-compilation warning that may confuse people reading
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;; the result of the following test.
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(declare-function compilation--message->loc nil "compile")
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(ert-deftest find-func-tests--locate-macro-generated-symbols () ;bug#45443
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(should (cdr (find-function-search-for-symbol
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#'compilation--message->loc nil "compile")))
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(should (cdr (find-function-search-for-symbol
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'c-mode-hook 'defvar "cc-mode"))))
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(provide 'find-func-tests)
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;;; find-func-tests.el ends here
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