From d02f86b342e5075b6664b4100877fcce6fa470cb Mon Sep 17 00:00:00 2001
From: Cadence Ember <cadence@disroot.org>
Date: Fri, 19 Jan 2024 12:37:13 +1300
Subject: [PATCH] Code coverage for unknown channel mention

---
 d2m/converters/message-to-event.js      |  2 +-
 d2m/converters/message-to-event.test.js | 10 ++++++
 test/data.js                            | 41 +++++++++++++++++++++++++
 3 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/d2m/converters/message-to-event.js b/d2m/converters/message-to-event.js
index 5c39853..0d68a73 100644
--- a/d2m/converters/message-to-event.js
+++ b/d2m/converters/message-to-event.js
@@ -43,7 +43,7 @@ function getDiscordParseCallbacks(message, guild, useHTML) {
 		channel: node => {
 			const row = select("channel_room", ["room_id", "name", "nick"], {channel_id: node.id}).get()
 			if (!row) {
-				return `<#${node.id}>` // fallback for when this channel is not bridged
+				return `#[channel-from-an-unknown-server]` // fallback for when this channel is not bridged
 			} else if (useHTML) {
 				return `<a href="https://matrix.to/#/${row.room_id}">#${row.nick || row.name}</a>`
 			} else {
diff --git a/d2m/converters/message-to-event.test.js b/d2m/converters/message-to-event.test.js
index 9c28f0b..b264aeb 100644
--- a/d2m/converters/message-to-event.test.js
+++ b/d2m/converters/message-to-event.test.js
@@ -73,6 +73,16 @@ test("message2event: simple room mention", async t => {
 	}])
 })
 
+test("message2event: unknown room mention", async t => {
+	const events = await messageToEvent(data.message.unknown_room_mention, data.guild.general, {})
+	t.deepEqual(events, [{
+		$type: "m.room.message",
+		"m.mentions": {},
+		msgtype: "m.text",
+		body: "#[channel-from-an-unknown-server]"
+	}])
+})
+
 test("message2event: simple role mentions", async t => {
 	const events = await messageToEvent(data.message.simple_role_mentions, data.guild.general, {})
 	t.deepEqual(events, [{
diff --git a/test/data.js b/test/data.js
index 508d628..c2c548d 100644
--- a/test/data.js
+++ b/test/data.js
@@ -495,6 +495,47 @@ module.exports = {
 			attachments: [],
 			guild_id: "112760669178241024"
 		},
+		unknown_room_mention: {
+			type: 0,
+			tts: false,
+			timestamp: "2023-07-10T20:04:25.939000+00:00",
+			referenced_message: null,
+			pinned: false,
+			nonce: "1128054139385806848",
+			mentions: [],
+			mention_roles: [],
+			mention_everyone: false,
+			member: {
+				roles: [],
+				premium_since: null,
+				pending: false,
+				nick: null,
+				mute: false,
+				joined_at: "2015-11-11T09:55:40.321000+00:00",
+				flags: 0,
+				deaf: false,
+				communication_disabled_until: null,
+				avatar: null
+			},
+			id: "1128054143064494233",
+			flags: 0,
+			embeds: [],
+			edited_timestamp: null,
+			content: "<#555>",
+			components: [],
+			channel_id: "266767590641238027",
+			author: {
+				username: "kumaccino",
+				public_flags: 128,
+				id: "113340068197859328",
+				global_name: "kumaccino",
+				discriminator: "0",
+				avatar_decoration: null,
+				avatar: "b48302623a12bc7c59a71328f72ccb39"
+			},
+			attachments: [],
+			guild_id: "112760669178241024"
+		},
 		simple_role_mentions: {
 			id: "1162374402785153106",
 			type: 0,