Redo line splitting for outgoing messages in ERC

* lisp/erc/erc-backend.el (erc--reject-unbreakable-lines): New
variable, an escape hatch for somewhat regaining pre-5.6
line-splitting behavior.
(erc--split-line): New utility function that doesn't rely on
column-oriented filling.
* lisp/erc/erc.el (erc--pre-send-split-functions): Append
`erc--split-lines' to value.
(erc--split-lines): New function to re-split current selection of
lines.
(erc-send-input): Hard-code line preparation instead of calling
`erc--pre-send-split-functions', in order to bake in traditional
behavior before move to "pre-splitting".
* test/lisp/erc/erc-scenarios-base-split-line.el: New file.
* test/lisp/erc/erc-tests.el (erc--split-line): New test.
(erc-send-current-line): Don't expect a flood argument when
interpreting a command because it's not passed along to the command's
handler.  This was previously misleading because it assigned undue
significance to something that had no bearing on the fate of a
command.
* test/lisp/erc/resources/base/flood/ascii.eld: New file.
* test/lisp/erc/resources/base/flood/koi8-r.eld: New file.
* test/lisp/erc/resources/base/flood/utf-8.eld: New file.
* test/lisp/erc/resources/erc-d/erc-d.el: Don't decode input.
(Bug#62947)

4 files changed, 151 insertions, 1 deletions

diff --git a/test/lisp/erc/resources/base/flood/ascii.eld b/test/lisp/erc/resources/base/flood/ascii.eld
new file mode 100644
index 00000000000..a3d127326c3
--- /dev/null
+++ b/test/lisp/erc/resources/base/flood/ascii.eld
@@ -0,0 +1,49 @@
+;; -*- mode: lisp-data; -*-
+((nick 10 "NICK tester"))
+((user 10 "USER user 0 * :tester")
+ (0.00 ":irc.foonet.org 001 tester :Welcome to the foonet IRC Network tester")
+ (0.01 ":irc.foonet.org 002 tester :Your host is irc.foonet.org, running version ergo-v2.11.1")
+ (0.01 ":irc.foonet.org 003 tester :This server was created Sun, 12 Mar 2023 02:30:29 UTC")
+ (0.00 ":irc.foonet.org 004 tester irc.foonet.org ergo-v2.11.1 BERTZios CEIMRUabefhiklmnoqstuv Iabefhkloqv")
+ (0.00 ":irc.foonet.org 005 tester AWAYLEN=390 BOT=B CASEMAPPING=ascii CHANLIMIT=#:100 CHANMODES=Ibe,k,fl,CEMRUimnstu CHANNELLEN=64 CHANTYPES=# CHATHISTORY=1000 ELIST=U EXCEPTS EXTBAN=,m FORWARD=f INVEX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester KICKLEN=390 MAXLIST=beI:60 MAXTARGETS=4 MODES MONITOR=100 NETWORK=foonet NICKLEN=32 PREFIX=(qaohv)~&@%+ STATUSMSG=~&@%+ TARGMAX=NAMES:1,LIST:1,KICK:,WHOIS:1,USERHOST:10,PRIVMSG:4,TAGMSG:4,NOTICE:4,MONITOR:100 TOPICLEN=390 UTF8ONLY WHOX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester draft/CHATHISTORY=1000 :are supported by this server")
+ (0.00 ":irc.foonet.org 251 tester :There are 0 users and 3 invisible on 1 server(s)")
+ (0.00 ":irc.foonet.org 252 tester 0 :IRC Operators online")
+ (0.00 ":irc.foonet.org 253 tester 0 :unregistered connections")
+ (0.00 ":irc.foonet.org 254 tester 1 :channels formed")
+ (0.00 ":irc.foonet.org 255 tester :I have 3 clients and 0 servers")
+ (0.00 ":irc.foonet.org 265 tester 3 3 :Current local users 3, max 3")
+ (0.00 ":irc.foonet.org 266 tester 3 3 :Current global users 3, max 3")
+ (0.00 ":irc.foonet.org 375 tester :- irc.foonet.org Message of the day - ")
+ (0.00 ":irc.foonet.org 372 tester :- This is the default Ergo MOTD.")
+ (0.01 ":irc.foonet.org 372 tester :- ")
+ (0.02 ":irc.foonet.org 372 tester :- For more information on using these, see MOTDFORMATTING.md")
+ (0.00 ":irc.foonet.org 376 tester :End of MOTD command"))
+
+((mode-tester 10 "MODE tester +i")
+ (0.00 ":irc.foonet.org 221 tester +i")
+ (0.00 ":irc.foonet.org NOTICE tester :This server is in debug mode and is logging all user I/O. If you do not wish for everything you send to be readable by the server owner(s), please disconnect.")
+ (0.05 ":irc.foonet.org 221 tester +i"))
+
+((join-spam 10 "JOIN #ascii")
+ (0 ":tester!~u@9g6b728983yd2.irc JOIN #ascii")
+ (0 ":irc.foonet.org 353 tester = #ascii :alice tester @bob")
+ (0 ":irc.foonet.org 366 tester #ascii :End of NAMES list"))
+
+((mode-spam 10 "MODE #ascii")
+ (0 ":irc.foonet.org 324 tester #ascii +nt")
+ (0 ":irc.foonet.org 329 tester #ascii 1620104779")
+ (0.1 ":bob!~u@rz2v467q4rwhy.irc PRIVMSG #ascii :tester, welcome!")
+ (0.0 ":alice!~u@rz2v467q4rwhy.irc PRIVMSG #ascii :tester, welcome!"))
+
+((privmsg 10 "PRIVMSG #ascii :twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters 12345678"))
+((privmsg 10 "PRIVMSG #ascii :twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters twenty-three characters "))
+((privmsg 10 "PRIVMSG #ascii :123456789"))
+((privmsg 10 "PRIVMSG #ascii :xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"))
+((privmsg 10 "PRIVMSG #ascii :yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"))
+((privmsg 10 "PRIVMSG #ascii :z"))
+
+((quit 10 "QUIT :\2ERC\2")
+ (0.07 ":tester!~u@h3f95zveyc38a.irc QUIT :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)")
+ (0.01 "ERROR :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)"))
diff --git a/test/lisp/erc/resources/base/flood/koi8-r.eld b/test/lisp/erc/resources/base/flood/koi8-r.eld
new file mode 100644
index 00000000000..0f10717fc2c
--- /dev/null
+++ b/test/lisp/erc/resources/base/flood/koi8-r.eld
@@ -0,0 +1,47 @@
+;; -*- mode: lisp-data; -*-
+((nick 10 "NICK tester"))
+((user 10 "USER user 0 * :tester")
+ (0.00 ":irc.foonet.org 001 tester :Welcome to the foonet IRC Network tester")
+ (0.01 ":irc.foonet.org 002 tester :Your host is irc.foonet.org, running version ergo-v2.11.1")
+ (0.01 ":irc.foonet.org 003 tester :This server was created Sun, 12 Mar 2023 02:30:29 UTC")
+ (0.00 ":irc.foonet.org 004 tester irc.foonet.org ergo-v2.11.1 BERTZios CEIMRUabefhiklmnoqstuv Iabefhkloqv")
+ (0.00 ":irc.foonet.org 005 tester AWAYLEN=390 BOT=B CASEMAPPING=ascii CHANLIMIT=#:100 CHANMODES=Ibe,k,fl,CEMRUimnstu CHANNELLEN=64 CHANTYPES=# CHATHISTORY=1000 ELIST=U EXCEPTS EXTBAN=,m FORWARD=f INVEX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester KICKLEN=390 MAXLIST=beI:60 MAXTARGETS=4 MODES MONITOR=100 NETWORK=foonet NICKLEN=32 PREFIX=(qaohv)~&@%+ STATUSMSG=~&@%+ TARGMAX=NAMES:1,LIST:1,KICK:,WHOIS:1,USERHOST:10,PRIVMSG:4,TAGMSG:4,NOTICE:4,MONITOR:100 TOPICLEN=390 UTF8ONLY WHOX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester draft/CHATHISTORY=1000 :are supported by this server")
+ (0.00 ":irc.foonet.org 251 tester :There are 0 users and 3 invisible on 1 server(s)")
+ (0.00 ":irc.foonet.org 252 tester 0 :IRC Operators online")
+ (0.00 ":irc.foonet.org 253 tester 0 :unregistered connections")
+ (0.00 ":irc.foonet.org 254 tester 1 :channels formed")
+ (0.00 ":irc.foonet.org 255 tester :I have 3 clients and 0 servers")
+ (0.00 ":irc.foonet.org 265 tester 3 3 :Current local users 3, max 3")
+ (0.00 ":irc.foonet.org 266 tester 3 3 :Current global users 3, max 3")
+ (0.00 ":irc.foonet.org 375 tester :- irc.foonet.org Message of the day - ")
+ (0.00 ":irc.foonet.org 372 tester :- This is the default Ergo MOTD.")
+ (0.01 ":irc.foonet.org 372 tester :- ")
+ (0.02 ":irc.foonet.org 372 tester :- For more information on using these, see MOTDFORMATTING.md")
+ (0.00 ":irc.foonet.org 376 tester :End of MOTD command"))
+
+((mode-tester 10 "MODE tester +i")
+ (0.00 ":irc.foonet.org 221 tester +i")
+ (0.00 ":irc.foonet.org NOTICE tester :This server is in debug mode and is logging all user I/O. If you do not wish for everything you send to be readable by the server owner(s), please disconnect.")
+ (0.05 ":irc.foonet.org 221 tester +i"))
+
+((join-chan 6 "JOIN #koi8")
+ (0 ":tester!~u@9g6b728983yd2.irc JOIN #koi8")
+ (0 ":irc.foonet.org 353 tester = #koi8 :alice tester @bob")
+ (0 ":irc.foonet.org 366 tester #koi8 :End of NAMES list"))
+
+((mode-chan 8 "MODE #koi8")
+ (0 ":irc.foonet.org 324 tester #koi8 +nt")
+ (0 ":irc.foonet.org 329 tester #koi8 1620104779")
+ (0.1 ":bob!~u@rz2v467q4rwhy.irc PRIVMSG #koi8 :tester, welcome!")
+ (0.0 ":alice!~u@rz2v467q4rwhy.irc PRIVMSG #koi8 :tester, welcome!")
+ (0.0 ":bob!~u@rz2v467q4rwhy.irc PRIVMSG #koi8 :\313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317"))
+
+((privmsg 10 "PRIVMSG #koi8 :\313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317"))
+((privmsg 10 "PRIVMSG #koi8 :\313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \313\317\322\317\336\305 \324\305\320\305\322\330 \305\323\314\311 \320\317 \322\325\323\323\313\311 \316\301\320\311\323\301\324\330 \327\323\305 \336\305\324\313\317 \311\314\311 \327\323\305 \322\301\327\316\317 \302\325\304\305\324 "))
+((privmsg 10 "PRIVMSG #koi8 :\322\301\332\322\331\327 \323\324\322\317\313\311 \316\305\320\317\316\321\324\316\317 \307\304\305"))
+
+((quit 10 "QUIT :\2ERC\2")
+ (0.07 ":tester!~u@h3f95zveyc38a.irc QUIT :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)")
+ (0.01 "ERROR :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)"))
diff --git a/test/lisp/erc/resources/base/flood/utf-8.eld b/test/lisp/erc/resources/base/flood/utf-8.eld
new file mode 100644
index 00000000000..8e7f8f7eed2
--- /dev/null
+++ b/test/lisp/erc/resources/base/flood/utf-8.eld
@@ -0,0 +1,54 @@
+;; -*- mode: lisp-data; -*-
+((nick 10 "NICK tester"))
+((user 10 "USER user 0 * :tester")
+ (0.00 ":irc.foonet.org 001 tester :Welcome to the foonet IRC Network tester")
+ (0.01 ":irc.foonet.org 002 tester :Your host is irc.foonet.org, running version ergo-v2.11.1")
+ (0.01 ":irc.foonet.org 003 tester :This server was created Sun, 12 Mar 2023 02:30:29 UTC")
+ (0.00 ":irc.foonet.org 004 tester irc.foonet.org ergo-v2.11.1 BERTZios CEIMRUabefhiklmnoqstuv Iabefhkloqv")
+ (0.00 ":irc.foonet.org 005 tester AWAYLEN=390 BOT=B CASEMAPPING=ascii CHANLIMIT=#:100 CHANMODES=Ibe,k,fl,CEMRUimnstu CHANNELLEN=64 CHANTYPES=# CHATHISTORY=1000 ELIST=U EXCEPTS EXTBAN=,m FORWARD=f INVEX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester KICKLEN=390 MAXLIST=beI:60 MAXTARGETS=4 MODES MONITOR=100 NETWORK=foonet NICKLEN=32 PREFIX=(qaohv)~&@%+ STATUSMSG=~&@%+ TARGMAX=NAMES:1,LIST:1,KICK:,WHOIS:1,USERHOST:10,PRIVMSG:4,TAGMSG:4,NOTICE:4,MONITOR:100 TOPICLEN=390 UTF8ONLY WHOX :are supported by this server")
+ (0.01 ":irc.foonet.org 005 tester draft/CHATHISTORY=1000 :are supported by this server")
+ (0.00 ":irc.foonet.org 251 tester :There are 0 users and 3 invisible on 1 server(s)")
+ (0.00 ":irc.foonet.org 252 tester 0 :IRC Operators online")
+ (0.00 ":irc.foonet.org 253 tester 0 :unregistered connections")
+ (0.00 ":irc.foonet.org 254 tester 1 :channels formed")
+ (0.00 ":irc.foonet.org 255 tester :I have 3 clients and 0 servers")
+ (0.00 ":irc.foonet.org 265 tester 3 3 :Current local users 3, max 3")
+ (0.00 ":irc.foonet.org 266 tester 3 3 :Current global users 3, max 3")
+ (0.00 ":irc.foonet.org 375 tester :- irc.foonet.org Message of the day - ")
+ (0.00 ":irc.foonet.org 372 tester :- This is the default Ergo MOTD.")
+ (0.01 ":irc.foonet.org 372 tester :- ")
+ (0.02 ":irc.foonet.org 372 tester :- For more information on using these, see MOTDFORMATTING.md")
+ (0.00 ":irc.foonet.org 376 tester :End of MOTD command"))
+
+((mode-tester 10 "MODE tester +i")
+ (0.00 ":irc.foonet.org 221 tester +i")
+ (0.00 ":irc.foonet.org NOTICE tester :This server is in debug mode and is logging all user I/O. If you do not wish for everything you send to be readable by the server owner(s), please disconnect.")
+ (0.05 ":irc.foonet.org 221 tester +i"))
+
+((join-spam 10 "JOIN #utf-8")
+ (0 ":tester!~u@9g6b728983yd2.irc JOIN #utf-8")
+ (0 ":irc.foonet.org 353 tester = #utf-8 :alice tester @bob")
+ (0 ":irc.foonet.org 366 tester #utf-8 :End of NAMES list"))
+
+((mode-spam 10 "MODE #utf-8")
+ (0 ":irc.foonet.org 324 tester #utf-8 +nt")
+ (0 ":irc.foonet.org 329 tester #utf-8 1620104779")
+ (0.1 ":bob!~u@rz2v467q4rwhy.irc PRIVMSG #utf-8 :tester, welcome!")
+ (0.0 ":alice!~u@rz2v467q4rwhy.irc PRIVMSG #utf-8 :tester, welcome!"))
+
+((privmsg-a 10 "PRIVMSG #utf-8 :\320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 "))
+((privmsg-b 10 "PRIVMSG #utf-8 :\320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\272\320\276\321\200\320\276\321\207\320\265 \321\202\320\265\320\277\320\265\321\200\321\214 \320\265\321\201\320\273\320\270 \320\277\320\276 \321\200\321\203\321\201\321\201\320\272\320\270 \320\275\320\260\320\277\320\270\321\201\320\260\321\202\321\214 \320\262\321\201\320\265 \321\207\320\265\321\202\320\272\320\276 \320\270\320\273\320\270 \320\262\321\201\320\265 \321\200\320\260\320\262\320\275\320\276 \320\261\321\203\320\264\320\265\321\202 \321\200\320\260\320\267\321\200\321\213\320\262 \321\201\321\202\321\200\320\276\320\272\320\270 \320\275\320\265\320\277\320\276\320\275\321\217\321\202\320\275\320\276 \320\263\320\264\320\265 \320\261\321\203\320\264\320\265\321\202 "))
+((privmsg-c 10 "PRIVMSG #utf-8 :\321\200\320\260\320\267\321\200\321\213\320\262 \321\201\321\202\321\200\320\276\320\272\320\270 \320\275\320\265\320\277\320\276\320\275\321\217\321\202\320\275\320\276 \320\263\320\264\320\265")
+ (0.1 ":bob!~u@rz2v467q4rwhy.irc PRIVMSG #utf-8 :alice: Entirely honour; I would not be delay'd."))
+
+((privmsg-g 10 "PRIVMSG #utf-8 :\350\251\261\350\252\252\345\244\251\344\270\213\345\244\247\345\213\242\357\274\214\345\210\206\344\271\205\345\277\205\345\220\210\357\274\214\345\220\210\344\271\205\345\277\205\345\210\206\357\274\232\345\221\250\346\234\253\344\270\203\345\234\213\345\210\206\347\210\255\357\274\214\345\271\266\345\205\245\346\226\274\347\247\246\343\200\202\345\217\212\347\247\246\346\273\205\344\271\213\345\276\214\357\274\214\346\245\232\343\200\201\346\274\242\345\210\206\347\210\255\357\274\214\345\217\210\345\271\266\345\205\245\346\226\274\346\274\242\343\200\202\346\274\242\346\234\235\350\207\252\351\253\230\347\245\226\346\226\254\347\231\275\350\233\207\350\200\214\350\265\267\347\276\251\357\274\214\344\270\200\347\265\261\345\244\251\344\270\213\343\200\202\345\276\214\344\276\206\345\205\211\346\255\246\344\270\255\350\210\210\357\274\214\345\202\263\350\207\263\347\215\273\345\270\235\357\274\214\351\201\202\345\210\206\347\202\272\344\270\211\345\234\213\343\200\202\346\216\250\345\205\266\350\207\264\344\272\202\344\271\213\347\224\261\357\274\214\346\256\206\345\247\213\346\226\274\346\241\223\343\200\201\351\235\210\344\272\214\345\270\235\343\200\202\346\241\223\345\270\235\347\246\201\351\214\256\345\226\204\351\241\236\357\274\214\345\264\207\344\277\241\345\256\246\345\256\230\343\200\202\345\217\212\346\241\223\345\270\235\345\264\251\357\274\214\351\235\210\345\270\235\345\215\263\344\275\215\357\274\214\345\244\247\345\260\207\350\273\215\347\253\207\346\255\246\343\200\201\345\244\252\345\202\205\351\231\263\350\225\203\357\274\214\345\205\261\347\233\270\350\274\224\344\275\220\343\200\202\346\231\202\346\234\211\345\256\246\345\256\230\346\233\271\347\257\200\347\255\211\345\274\204\346\254\212\357\274\214"))
+((privmsg-h 10 "PRIVMSG #utf-8 :\347\253\207\346\255\246\343\200\201\351\231\263\350\225\203\350\254\200\350\252\205\344\271\213\357\274\214\344\275\234\344\272\213\344\270\215\345\257\206\357\274\214\345\217\215\347\202\272\346\211\200\345\256\263\343\200\202\344\270\255\346\266\223\350\207\252\346\255\244\346\204\210\346\251\253")
+ (0.0 ":alice!~u@rz2v467q4rwhy.irc PRIVMSG #utf-8 :Shall seize this prey out of his father's hands."))
+
+((privmsg-d 10 "PRIVMSG #utf-8 :\320\261\321\203\320\264\320\265\321\202\302\240\321\200\320\260\320\267\321\200\321\213\320\262\302\240\321\201\321\202\321\200\320\276\320\272\320\270\302\240\320\275\320\265\320\277\320\276\320\275\321\217\321\202\320\275\320\276\302\240\320\263\320\264\320\265\360\237\217\201\360\237\232\251\360\237\216\214\360\237\217\264\360\237\217\263\357\270\217"))
+((privmsg-e 10 "PRIVMSG #utf-8 :\360\237\217\263\357\270\217\342\200\215\360\237\214\210\360\237\217\263\357\270\217\342\200\215\342\232\247\357\270\217\360\237\217\264\342\200\215\342\230\240\357\270\217"))
+
+((quit 10 "QUIT :\2ERC\2")
+ (0.07 ":tester!~u@h3f95zveyc38a.irc QUIT :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)")
+ (0.01 "ERROR :Quit: \2ERC\2 5.5 (IRC client for GNU Emacs 30.0.50)"))
diff --git a/test/lisp/erc/resources/erc-d/erc-d.el b/test/lisp/erc/resources/erc-d/erc-d.el
index 43f6552f0f3..e9d880644d4 100644
--- a/test/lisp/erc/resources/erc-d/erc-d.el
+++ b/test/lisp/erc/resources/erc-d/erc-d.el
@@ -456,7 +456,7 @@ including line delimiters."
         (setq string (unless (= (match-end 0) (length string))
                        (substring string (match-end 0))))
         (erc-d--log process line nil)
-        (ring-insert queue (erc-d-i--parse-message line 'decode))))
+        (ring-insert queue (erc-d-i--parse-message line nil))))
     (when string
       (setf (process-get process :stashed-input) string))))