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+;;; erc-scenarios-base-split-line.el --- ERC line splitting -*- lexical-binding: t -*-
+
+;; Copyright (C) 2023-2024 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)))
+
+(ert-deftest erc-scenarios-base-split-line--koi8-r ()
+ :tags '(:expensive-test)
+ (should (equal erc-split-line-length 440))
+ (erc-scenarios-common-with-cleanup
+ ((erc-scenarios-common-dialog "base/flood")
+ (erc-server-flood-penalty 0.1)
+ (dumb-server (erc-d-run "localhost" t 'koi8-r))
+ (erc-encoding-coding-alist '(("#koi8" . cyrillic-koi8)))
+ (port (process-contact dumb-server :service))
+ (expect (erc-d-t-make-expecter)))
+
+ (ert-info ("Connect to server")
+ (with-current-buffer (erc :server "127.0.0.1"
+ :port port
+ :nick "tester"
+ :full-name "tester")
+ (funcall expect 10 "debug mode")
+ (erc-cmd-JOIN "#koi8")))
+
+ (with-current-buffer (erc-d-t-wait-for 8 (get-buffer "#koi8"))
+ (funcall expect 10 "короче теперь")
+ (ert-info ("Message well within `erc-split-line-length'")
+ (erc-scenarios-common-say
+ (concat
+ "короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"))
+ (funcall expect 1 "<tester>")
+ (funcall expect -0.1 "<tester>"))
+
+ (ert-info ("Message over `erc-split-line-length'")
+ (erc-scenarios-common-say
+ (concat
+ "короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " будет разрыв строки непонятно где"))
+ (funcall expect 1 "<tester>")
+ (funcall expect 1 "<tester> разрыв")))
+
+ (with-current-buffer "foonet"
+ (erc-cmd-QUIT "")
+ (funcall expect 10 "finished"))))
+
+(ert-deftest erc-scenarios-base-split-line--ascii ()
+ :tags '(:expensive-test)
+ (should (equal erc-split-line-length 440))
+ (erc-scenarios-common-with-cleanup
+ ((erc-scenarios-common-dialog "base/flood")
+ (msg-432 (string-join (make-list 18 "twenty-three characters") " "))
+ (erc-server-flood-penalty 0.1)
+ (dumb-server (erc-d-run "localhost" t 'ascii))
+ (port (process-contact dumb-server :service))
+ (expect (erc-d-t-make-expecter)))
+
+ (ert-info ("Connect to server")
+ (with-current-buffer (erc :server "127.0.0.1"
+ :port port
+ :nick "tester"
+ :full-name "tester")
+ (funcall expect 10 "debug mode")
+ (erc-cmd-JOIN "#ascii")))
+
+ (with-current-buffer (erc-d-t-wait-for 8 (get-buffer "#ascii"))
+ (ert-info ("Message with spaces fits exactly")
+ (funcall expect 10 "Welcome")
+ (should (= (length (concat msg-432 " 12345678")) 440))
+ (erc-scenarios-common-say (concat msg-432 " 12345678"))
+ (funcall expect 1 "<tester>")
+ ;; Sent in a single go, hence no second <speaker>.
+ (funcall expect -0.1 "<tester>")
+ (funcall expect 0.1 "12345678"))
+
+ (ert-info ("Message with spaces too long.")
+ (erc-scenarios-common-say (concat msg-432 " 123456789"))
+ (funcall expect 1 "<tester>")
+ ;; Sent in two passes, split at last word.
+ (funcall expect 0.1 "<tester> 123456789"))
+
+ (ert-info ("Message sans spaces fits exactly")
+ (erc-scenarios-common-say (make-string 440 ?x))
+ (funcall expect 1 "<tester>")
+ ;; Sent in a single go, hence no second <speaker>.
+ (funcall expect -0.1 "<tester>"))
+
+ (ert-info ("Message sans spaces too long.")
+ (erc-scenarios-common-say (concat (make-string 440 ?y) "z"))
+ (funcall expect 1 "<tester>")
+ ;; Sent in two passes, split at last word.
+ (funcall expect 0.1 "<tester> z"))
+
+ (ert-info ("Rejected when escape-hatch set")
+ (let ((erc--reject-unbreakable-lines t))
+ (should-error
+ (erc-scenarios-common-say
+ (concat
+ "https://mail.example.org/verify?token="
+ (string-join (make-list 18 "twenty-three_characters") "_")))))))
+
+ (with-current-buffer "foonet"
+ (erc-cmd-QUIT "")
+ (funcall expect 10 "finished"))))
+
+(ert-deftest erc-scenarios-base-split-line--utf-8 ()
+ :tags '(:expensive-test)
+ (unless (> emacs-major-version 27)
+ (ert-skip "No emojis in Emacs 27"))
+
+ (should (equal erc-split-line-length 440))
+ (erc-scenarios-common-with-cleanup
+ ((erc-scenarios-common-dialog "base/flood")
+ (msg-432 (string-join (make-list 18 "twenty-three characters") " "))
+ (erc-server-flood-penalty 0.1)
+ (dumb-server (erc-d-run "localhost" t 'utf-8))
+ (port (process-contact dumb-server :service))
+ (expect (erc-d-t-make-expecter)))
+
+ (ert-info ("Connect to server")
+ (with-current-buffer (erc :server "127.0.0.1"
+ :port port
+ :nick "tester"
+ :full-name "tester")
+ (funcall expect 10 "debug mode")
+ (erc-cmd-JOIN "#utf-8")))
+
+ (with-current-buffer (erc-d-t-wait-for 8 (get-buffer "#utf-8"))
+ (funcall expect 10 "Welcome")
+
+ (ert-info ("Message with spaces over `erc-split-line-length'")
+ (erc-scenarios-common-say
+ (concat
+ "короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " короче теперь если по русски написать все четко или все равно"
+ " будет разрыв строки непонятно где"
+ " будет разрыв строки непонятно где"))
+ (funcall expect 1 "<tester> короче")
+ (funcall expect 1 "<tester> все")
+ (funcall expect 1 "<tester> разрыв")
+ (funcall expect 1 "Entirely honour"))
+
+ (ert-info ("Message sans spaces over `erc-split-line-length'")
+ (erc-scenarios-common-say
+ (concat "話說天下大勢，分久必合，合久必分：周末七國分爭，并入於秦。"
+ "及秦滅之後，楚、漢分爭，又并入於漢。漢朝自高祖斬白蛇而起義，"
+ "一統天下。後來光武中興，傳至獻帝，遂分為三國。推其致亂之由，"
+ "殆始於桓、靈二帝。桓帝禁錮善類，崇信宦官。及桓帝崩，靈帝即位，"
+ "大將軍竇武、太傅陳蕃，共相輔佐。時有宦官曹節等弄權，竇武、陳蕃謀誅之，"
+ "作事不密，反為所害。中涓自此愈橫"))
+ (funcall expect 1 "<tester>")
+ ;; Sent in two passes, split at last word.
+ (funcall expect 0.1 "<tester> 竇武")
+ (funcall expect 1 "this prey out"))
+
+ ;; Combining emojis are respected.
+ (ert-info ("Message sans spaces over small `erc-split-line-length'")
+ (let ((erc-split-line-length 100))
+ (erc-scenarios-common-say
+ "будет разрыв строки непонятно где🏁🚩🎌🏴🏳️🏳️‍🌈🏳️‍⚧️🏴‍☠️"))
+ (funcall expect 1 "<tester>")
+ (funcall expect 1 "<tester> 🏳️‍🌈")))
+
+ (with-current-buffer "foonet"
+ (erc-cmd-QUIT "")
+ (funcall expect 10 "finished"))))
+
+;;; erc-scenarios-base-split-line.el ends here
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