snapshot of https://github.com/ueberdosis/hocuspocus.git @ cf3cfa355b4d3bb61c6b6c80071f71783e32470e (2026-09-15)

tests/extension-redis/onChange.ts

@@ -0,0 +1,60 @@
+import { Redis } from "@hocuspocus/extension-redis";
+import test from "ava";
+import {
+	newHocuspocus,
+	newHocuspocusProvider,
+	redisConnectionSettings,
+} from "../utils/index.ts";
+
+test("syncs updates between servers and clients", async (t) => {
+	await new Promise(async (resolve) => {
+		let resolved = false;
+
+		const server = await newHocuspocus(t, {
+			extensions: [
+				new Redis({
+					...redisConnectionSettings,
+					identifier: `server${crypto.randomUUID()}`,
+				}),
+			],
+		});
+
+		const anotherServer = await newHocuspocus(t, {
+			extensions: [
+				new Redis({
+					...redisConnectionSettings,
+					identifier: `anotherServer${crypto.randomUUID()}`,
+				}),
+			],
+		});
+
+		// Once we’re setup make an edit on anotherProvider. To get to the provider it will need
+		// to pass through Redis:
+		// provider -> server -> Redis -> anotherServer -> anotherProvider
+		const provider = newHocuspocusProvider(t, server, {
+			onSynced() {
+				provider.document.getArray("foo").insert(0, ["bar"]);
+			},
+		});
+
+		// Once the initial data is synced, wait for an additional update to check
+		// if both documents have the same content.
+		const anotherProvider = newHocuspocusProvider(t, anotherServer, {
+			onSynced() {
+				provider.on("message", () => {
+					if (resolved) return;
+					resolved = true;
+
+					setTimeout(() => {
+						t.is(
+							provider.document.getArray("foo").get(0),
+							anotherProvider.document.getArray("foo").get(0),
+						);
+
+						resolve("done");
+					}, 200);
+				});
+			},
+		});
+	});
+});