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;;; erc-scenarios-keep-place-indicator-trunc.el --- `truncate' integration -*- lexical-binding: t -*-
;; Copyright (C) 2024-2025 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/>.
;;; Code:
(require 'ert-x)
(eval-and-compile
(let ((load-path (cons (ert-resource-directory) load-path)))
(require 'erc-scenarios-common)))
(require 'erc-goodies)
(ert-deftest erc-scenarios-keep-place-indicator-trunc ()
:tags `(:expensive-test
,@(and (getenv "ERC_TESTS_GRAPHICAL") '(:erc--graphical)))
(when (and noninteractive (= emacs-major-version 27))
(ert-skip "Times out"))
(defvar erc-max-buffer-size)
(defvar erc-truncate-padding-size)
(erc-scenarios-common-with-noninteractive-in-term
((erc-scenarios-common-dialog "keep-place")
(dumb-server (erc-d-run "localhost" t 'follow))
(port (process-contact dumb-server :service))
(erc-modules `( keep-place-indicator scrolltobottom
truncate ,@erc-modules))
(erc-server-flood-penalty 0.1)
(erc-max-buffer-size 300)
(erc-truncate-padding-size 200)
(erc-keep-place-indicator-truncation t)
(erc-autojoin-channels-alist '((foonet "#chan" "#spam")))
(expect (erc-d-t-make-expecter)))
(with-current-buffer (erc :server "127.0.0.1"
:port port
:full-name "tester"
:nick "tester"
:user "tester")
(funcall expect 10 "debug mode"))
(with-current-buffer (erc-d-t-wait-for 10 (get-buffer "#chan"))
(set-window-buffer nil (current-buffer))
(delete-other-windows)
(ert-info ("Truncation occurs because indicator still at start pos")
(funcall expect 10 "]\n<alice> bob: And what I spake")
(redisplay)
(should (= (overlay-start erc--keep-place-indicator-overlay) 2))
(funcall expect 10 "Yes, faith will I")
(goto-char (point-max)))
(switch-to-buffer (erc-d-t-wait-for 10 (get-buffer "#spam"))) ; lower
(funcall expect 10 "<alice> tester, welcome!")
(erc-scenarios-common-say "one")
(erc-scenarios-common-say "two")
(funcall expect 10 "<bob> Cause they take")
(erc-scenarios-common-say "three")
(goto-char (point-max))
(ert-info ("Truncation limited by indicator")
(switch-to-buffer "#chan")
(funcall expect 10 "<bob> Ready")
(redisplay)
(funcall expect 10 "]\n<alice> Yes, faith will I" (point-min))
(should (= (overlay-start erc--keep-place-indicator-overlay)
(pos-bol)))
(should (> (buffer-size) 500)))
(ert-info ("Normal keep-place behavior still present")
(switch-to-buffer "#spam")
(should (< (point) erc-input-marker)))
(erc-keep-place-mode -1)
(erc-scrolltobottom-mode -1))))
;;; erc-scenarios-keep-place-indicator-trunc.el ends here
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