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;;; js-tests.el --- Test suite for js-mode
;; Copyright (C) 2017 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'ert)
(require 'js)
(require 'syntax)
(ert-deftest js-mode-fill-bug-19399 ()
(with-temp-buffer
(insert "/")
(save-excursion (insert "/ comment"))
(js-mode)
(fill-paragraph)
(should (equal (buffer-substring (point-min) (point-max))
"// comment"))))
(ert-deftest js-mode-fill-bug-22431 ()
(with-temp-buffer
(insert "/**\n")
(insert " * Load the inspector's shared head.js for use by tests that ")
(insert "need to open the something or other")
(js-mode)
;; This fails with auto-fill but not fill-paragraph.
(do-auto-fill)
(should (equal (buffer-substring (point-min) (point-max))
"/**
* Load the inspector's shared head.js for use by tests that need to
* open the something or other"))))
(ert-deftest js-mode-fill-bug-22431-fill-paragraph-at-start ()
(with-temp-buffer
(insert "/**\n")
(insert " * Load the inspector's shared head.js for use by tests that ")
(insert "need to open the something or other")
(js-mode)
(goto-char (point-min))
(fill-paragraph)
(should (equal (buffer-substring (point-min) (point-max))
"/**
* Load the inspector's shared head.js for use by tests that need to
* open the something or other"))))
(ert-deftest js-mode-regexp-syntax ()
(with-temp-buffer
;; Normally indentation tests are done in manual/indent, but in
;; this case we are specifically testing a case where the bug
;; caused the indenter not to do anything, and manual/indent can
;; only be used for already-correct files.
(insert "function f(start, value) {
if (start - 1 === 0 || /[ (:,='\"]/.test(value)) {
--start;
}
if (start - 1 === 0 && /[ (:,='\"]/.test(value)) {
--start;
}
if (!/[ (:,='\"]/.test(value)) {
--start;
}
}
")
(js-mode)
(indent-region (point-min) (point-max))
(goto-char (point-min))
(dolist (x '(0 4 8 4 4 8 4 4 8 4 0))
(back-to-indentation)
(should (= (current-column) x))
(forward-line))))
(ert-deftest js-mode-auto-fill ()
(with-temp-buffer
(js-mode)
(setq fill-column 70)
(insert "/* ")
(dotimes (_ 16)
(insert "test "))
(do-auto-fill)
;; The bug is that, after auto-fill, the second line starts with
;; "/*", whereas it should start with " * ".
(goto-char (point-min))
(forward-line)
(should (looking-at " \\* test"))))
(ert-deftest js-mode-regexp-syntax-bug-25529 ()
(dolist (regexp-contents '("[^[]"
"[/]"
;; A comment with the regexp on the next
;; line.
"*comment*/\n/regexp"))
(with-temp-buffer
(js-mode)
(insert "let x = /" regexp-contents "/;\n")
(save-excursion (insert "something();\n"))
;; The failure mode was that the regexp literal was not
;; recognized, causing the next line to be given string syntax;
;; but check for comment syntax as well to prevent an
;; implementation not recognizing the comment example.
(should-not (syntax-ppss-context (syntax-ppss))))))
(provide 'js-tests)
;;; js-tests.el ends here
|
