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;;; erc-scenarios-base-reuse-buffers.el --- base-reuse-buffers scenarios -*- lexical-binding: t -*-
;; Copyright (C) 2022-2024 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)))
(eval-when-compile (require 'erc-join))
(defun erc-scenarios-common--base-reuse-buffers-server-buffers (&optional more)
"Show that `erc-reuse-buffers' doesn't affect server buffers.
Overlaps some with `clash-of-chans/uniquify'. Adapted from
rebuffed/reuseless, described in Bug#48598: 28.0.50; buffer-naming
collisions involving bouncers in ERC. Run EXTRA."
(erc-scenarios-common-with-cleanup
((dumb-server (erc-d-run "localhost" t 'foonet 'barnet))
(port (process-contact dumb-server :service))
erc-autojoin-channels-alist)
(ert-info ("Connect to foonet")
(with-current-buffer (erc :server "127.0.0.1"
:port port
:nick "tester"
:password "foonet:changeme"
:full-name "tester")
(should (string= (buffer-name)
(format "127.0.0.1:%d/127.0.0.1" port)))
(erc-d-t-search-for 12 "marked as being away")))
(ert-info ("Connect to barnet")
(with-current-buffer (erc :server "127.0.0.1"
:port port
:nick "tester"
:password "barnet:changeme"
:full-name "tester")
(should (string= (buffer-name)
(format "127.0.0.1:%d/127.0.0.1<2>" port)))
(erc-d-t-search-for 45 "marked as being away")))
(erc-d-t-wait-for 2 (get-buffer (format "127.0.0.1:%d/127.0.0.1" port)))
(erc-d-t-wait-for 2 (get-buffer (format "127.0.0.1:%d/127.0.0.1<2>" port)))
(ert-info ("Server buffers are unique, no IP-based names")
(should (cdr (erc-scenarios-common-buflist "127.0.0.1"))))
(when more (funcall more port))))
;; FIXME no sense in running this twice (JOIN variant includes this)
(ert-deftest erc-scenarios-base-reuse-buffers-server-buffers--disabled ()
:tags '(:expensive-test)
(with-suppressed-warnings ((obsolete erc-reuse-buffers))
(should erc-reuse-buffers)
(let ((erc-scenarios-common-dialog "base/reuse-buffers/server")
erc-reuse-buffers)
(erc-scenarios-common--base-reuse-buffers-server-buffers nil))))
;; This also asserts that `erc-cmd-JOIN' is no longer susceptible to a
;; regression introduced in 28.1 (ERC 5.4) that caused phantom target
;; buffers of the form target/server to be created via
;; `switch-to-buffer' ("phantom" because they would go unused"). This
;; would happen (in place of a JOIN being sent out) when a previously
;; used (parted) target buffer existed and `erc-reuse-buffers' was
;; nil.
;;
;; Note: All the `erc-get-channel-user' calls have to do with the fact
;; that `erc-default-target' relies on the ambiguously defined
;; `erc-default-recipients' (meaning it's overloaded in the sense of
;; being used both for retrieving a target name and checking if a
;; channel has been PARTed). While not ideal, `erc-get-channel-user'
;; can (also) be used to detect the latter.
(defun erc-scenarios-common--base-reuse-buffers-channel-buffers (port)
"The option `erc-reuse-buffers' is still respected when nil.
Adapted from scenario clash-of-chans/uniquify described in Bug#48598:
28.0.50; buffer-naming collisions involving bouncers in ERC."
(let* ((expect (erc-d-t-make-expecter))
(server-buffer-foo
(get-buffer (format "127.0.0.1:%d/127.0.0.1" port)))
(server-buffer-bar
(get-buffer (format "127.0.0.1:%d/127.0.0.1<2>" port)))
(server-process-foo
(buffer-local-value 'erc-server-process server-buffer-foo))
(server-process-bar
(buffer-local-value 'erc-server-process server-buffer-bar)))
(ert-info ("Unique #chan buffers exist")
(erc-d-t-wait-for 3 (get-buffer "#chan/127.0.0.1<2>"))
(erc-d-t-wait-for 3 (get-buffer "#chan/127.0.0.1")))
(ert-info ("#chan@foonet is exclusive and not contaminated")
(with-current-buffer "#chan/127.0.0.1"
(funcall expect 1 "<bob>")
(erc-d-t-absent-for 0.1 "<joe>")
(funcall expect 1 "strength to climb")
(should (eq erc-server-process server-process-foo))))
(ert-info ("#chan@barnet is exclusive and not contaminated")
(with-current-buffer "#chan/127.0.0.1<2>"
(funcall expect 1 "<joe>")
(erc-d-t-absent-for 0.1 "<bob>")
(funcall expect 1 "the loudest noise")
(should (eq erc-server-process server-process-bar))))
(ert-info ("Part #chan@foonet")
(with-current-buffer "#chan/127.0.0.1"
(erc-d-t-search-for 1 "shake my sword")
(erc-cmd-PART "#chan")
(funcall expect 3 "You have left channel #chan")
(erc-cmd-JOIN "#chan")))
(ert-info ("Part #chan@barnet")
(with-current-buffer "#chan/127.0.0.1<2>"
(funcall expect 10 "Arm it in rags")
(should (erc-get-channel-user (erc-current-nick)))
(erc-cmd-PART "#chan")
(funcall expect 3 "You have left channel #chan")
(should-not (erc-get-channel-user (erc-current-nick)))
(erc-cmd-JOIN "#chan")))
(erc-d-t-wait-for 3 "New unique target buffer for #chan@foonet created"
(get-buffer "#chan/127.0.0.1<3>"))
(ert-info ("Activity continues in new, <n>-suffixed #chan@foonet buffer")
(with-current-buffer "#chan/127.0.0.1"
(should-not (erc-get-channel-user (erc-current-nick))))
(with-current-buffer "#chan/127.0.0.1<3>"
(should (erc-get-channel-user (erc-current-nick)))
(funcall expect 2 "You have joined channel #chan")
(funcall expect 2 "#chan was created on")
(funcall expect 2 "<alice>")
(should (eq erc-server-process server-process-foo))
(erc-d-t-absent-for 0.2 "<joe>")))
(sit-for 3)
(erc-d-t-wait-for 5 "New unique target buffer for #chan@barnet created"
(get-buffer "#chan/127.0.0.1<4>"))
(ert-info ("Activity continues in new, <n>-suffixed #chan@barnet buffer")
(with-current-buffer "#chan/127.0.0.1<2>"
(should-not (erc-get-channel-user (erc-current-nick))))
(with-current-buffer "#chan/127.0.0.1<4>"
(funcall expect 2 "You have joined channel #chan")
(funcall expect 1 "Users on #chan: @mike joe tester")
(funcall expect 2 "<mike>")
(should (eq erc-server-process server-process-bar))
(erc-d-t-absent-for 0.2 "<bob>")))
(ert-info ("Two new chans created for a total of four")
(let* ((bufs (erc-scenarios-common-buflist "#chan"))
(names (sort (mapcar #'buffer-name bufs) #'string<)))
(should
(equal names (mapcar (lambda (f) (concat "#chan/127.0.0.1" f))
'("" "<2>" "<3>" "<4>"))))))
(ert-info ("All output sent")
(with-current-buffer "#chan/127.0.0.1<3>"
(funcall expect 10 "most lively"))
(with-current-buffer "#chan/127.0.0.1<4>"
(funcall expect 10 "soul black")))
;; TODO ensure the exact <N>'s aren't reassigned during killing as
;; they are when the option is on.
(ert-info ("Buffers are exempt from shortening")
(kill-buffer "#chan/127.0.0.1<4>")
(kill-buffer "#chan/127.0.0.1<3>")
(kill-buffer "#chan/127.0.0.1<2>")
(should-not (get-buffer "#chan"))
(should (get-buffer "#chan/127.0.0.1")))))
(ert-deftest erc-scenarios-base-reuse-buffers-channel-buffers--disabled ()
:tags '(:expensive-test)
(with-suppressed-warnings ((obsolete erc-reuse-buffers))
(should erc-reuse-buffers)
(let ((erc-scenarios-common-dialog "base/reuse-buffers/channel")
(erc-server-flood-penalty 0.1)
erc-reuse-buffers)
(erc-scenarios-common--base-reuse-buffers-server-buffers
#'erc-scenarios-common--base-reuse-buffers-channel-buffers))))
;;; erc-scenarios-base-reuse-buffers.el ends here
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