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;;; grep-tests.el --- Test suite for grep.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/>.
;;; Commentary:
;;; Code:
(require 'ert)
(require 'grep)
(defconst grep-tests--ellipsis (if (char-displayable-p ?…) "[…]" "[...]")
"The form that the ellipsis takes in `grep-find-abbreviate-properties'.")
(defun grep-tests--get-rgrep-abbreviation ()
"Get the `display' property of the excessive part of the rgrep command."
(with-temp-buffer
(grep-compute-defaults)
(insert (rgrep-default-command "search" "*" nil))
(grep-mode)
(font-lock-mode)
(font-lock-ensure)
(goto-char (point-min))
(re-search-forward "find ")
(get-text-property (point) 'display)))
(defun grep-tests--check-rgrep-abbreviation ()
"Check that the excessive part of the rgrep command is abbreviated iff
`grep-find-abbreviate' is non-nil."
(let ((grep-find-abbreviate t))
(should (equal (grep-tests--get-rgrep-abbreviation)
grep-tests--ellipsis)))
(let ((grep-find-abbreviate nil))
(should-not (grep-tests--get-rgrep-abbreviation))))
(ert-deftest grep-tests--rgrep-abbreviate-properties-gnu-linux ()
(let ((system-type 'gnu/linux))
(grep-tests--check-rgrep-abbreviation)))
(ert-deftest grep-tests--rgrep-abbreviate-properties-darwin ()
(let ((system-type 'darwin))
(grep-tests--check-rgrep-abbreviation)))
(ert-deftest grep-tests--rgrep-abbreviate-properties-windows-nt-dos-semantics ()
(let ((system-type 'windows-nt))
(cl-letf (((symbol-function 'w32-shell-dos-semantics) #'always))
(grep-tests--check-rgrep-abbreviation))))
(ert-deftest grep-tests--rgrep-abbreviate-properties-windows-nt-sh-semantics ()
(let ((system-type 'windows-nt))
(cl-letf (((symbol-function 'w32-shell-dos-semantics) #'ignore))
(grep-tests--check-rgrep-abbreviation))))
;;; grep-tests.el ends here
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