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;;; term-tests.el --- tests for term.el -*- lexical-binding: t -*-
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'ert)
(require 'term)
(eval-when-compile (require 'cl-lib))
(defvar term-height) ; Number of lines in window.
(defvar term-width) ; Number of columns in window.
(defun term-test-screen-from-input (width height input &optional return-var)
(with-temp-buffer
(term-mode)
;; Keep dimensions independent from window size.
(remove-function (local 'window-adjust-process-window-size-function)
'term-maybe-reset-size)
(term-exec (current-buffer) "test" "cat" nil nil)
(term-char-mode)
(setq term-width width)
(setq term-height height)
;; Pass input directly to `term-emulate-terminal', it's easier to
;; control chunking, and we don't have to worry about wrestling
;; with stty settings.
(let ((proc (get-buffer-process (current-buffer))))
;; Don't get stuck when we close the buffer.
(set-process-query-on-exit-flag proc nil)
(if (consp input)
(mapc (lambda (input) (term-emulate-terminal proc input)) input)
(term-emulate-terminal proc input))
(if return-var (buffer-local-value return-var (current-buffer))
(buffer-substring-no-properties (point-min) (point-max))))))
(ert-deftest term-simple-lines ()
(let ((str "\
first line\r
next line\r\n"))
(should (equal (term-test-screen-from-input 40 12 str)
(replace-regexp-in-string "\r" "" str)))))
(ert-deftest term-carriage-return ()
(let ((str "\
first line\r_next line\r\n"))
(should (equal (term-test-screen-from-input 40 12 str)
"_next line\n"))))
(ert-deftest term-line-wrap ()
(should (string-match-p
;; Don't be strict about trailing whitespace.
"\\`a\\{40\\}\na\\{20\\} *\\'"
(term-test-screen-from-input 40 12 (make-string 60 ?a))))
;; Again, but split input into chunks.
(should (string-match-p
"\\`a\\{40\\}\na\\{20\\} *\\'"
(term-test-screen-from-input 40 12 (let ((str (make-string 30 ?a)))
(list str str))))))
(ert-deftest term-cursor-movement ()
;; Absolute positioning.
(should (equal "ab\ncd"
(term-test-screen-from-input
40 12 (concat "\e[2;2Hd"
"\e[2;1Hc"
"\e[1;2Hb"
"\e[1;1Ha"))))
;; Send one byte at a time.
(should (equal "ab\ncd"
(term-test-screen-from-input
40 12 (split-string (concat "\e[2;2Hd"
"\e[2;1Hc"
"\e[1;2Hb"
"\e[1;1Ha") "" t))))
;; Relative positioning.
(should (equal "ab\ncd"
(term-test-screen-from-input
40 12 (concat "\e[B\e[Cd"
"\e[D\e[Dc"
"\e[Ab"
"\e[D\e[Da")))))
(ert-deftest term-scrolling-region ()
(should (equal "\
line3
line4
line5
line6
"
(term-test-screen-from-input
40 12 "\e[1;5r\
line1\r
line2\r
line3\r
line4\r
line5\r
line6\r
"))))
(ert-deftest term-set-directory ()
(let ((term-ansi-at-user (user-real-login-name)))
(should (equal (term-test-screen-from-input
40 12 "\eAnSiTc /foo/\n" 'default-directory)
"/foo/"))
;; Split input (Bug#17231).
(should (equal (term-test-screen-from-input
40 12 (list "\eAnSiTc /f" "oo/\n") 'default-directory)
"/foo/"))))
(provide 'term-tests)
;;; term-tests.el ends here
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