Playwright test for dehydrated devices with MAS (#34095)

* Device dehydration tests: use common util for recovery setup We have a utility method for setting up the recovery key, so let's use it. * Factor out shared method for creating encrypted rooms * Playwright test for device dehydration Add a playwright test to check that this stuff actually works. * Factor out `verifyAfterLogin` as a separate function * Playwright test for dehydrated devices with MAS
2026-07-02 13:07:57 +00:00
parent f93f68056a
commit 1b9aff2fb1
5 changed files with 98 additions and 13 deletions
@@ -0,0 +1,80 @@
+/*
+ Copyright 2026 Element Creations Ltd.
+
+ SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ Please see LICENSE files in the repository root for full details.
+ */
+
+import { expect, test } from "../../element-web-test.ts";
+import { masHomeserver } from "../../plugins/homeserver/synapse/masHomeserver.ts";
+import {
+    autoJoin,
+    createSharedEncryptedRoomWithUser,
+    enableKeyBackup,
+    logOutOfElement,
+    verifyAfterLogin,
+} from "./utils.ts";
+import { registerAccountMas } from "../oidc";
+import { Bot } from "../../pages/bot.ts";
+
+test.use({
+    ...masHomeserver,
+    synapseConfig: {
+        experimental_features: {
+            msc2697_enabled: false,
+            msc3814_enabled: true,
+        },
+    },
+});
+
+test.describe("Device dehydration, on a MAS-enabled homeserver", () => {
+    test("Can read messages sent while logged out", async ({ mailpitClient, homeserver, page, app }, testInfo) => {
+        test.slow();
+        const aliceUserId = `alice_${testInfo.testId}`;
+        const alicePassword = "Pa$sW0rD!";
+
+        const recoveryKey =
+            await test.step("Alice registers and sets up recovery => a dehydrated device is created", async () => {
+                await page.goto("/#/login");
+                await page.getByRole("button", { name: "Continue" }).click();
+
+                await registerAccountMas(page, mailpitClient, aliceUserId, `${aliceUserId}@email.com`, alicePassword);
+                return await enableKeyBackup(app);
+            });
+
+        const [bob, testRoomId] = await test.step("Bob registers and joins a room with Alice", async () => {
+            const bob = new Bot(page, homeserver, { displayName: "Bob" });
+            await autoJoin(bob);
+
+            // Create an encrypted room, and wait for Bob to join it.
+            const testRoomId = await createSharedEncryptedRoomWithUser(app, bob.credentials.userId);
+
+            // Even though Alice has seen Bob's join event, Bob may not have done so yet. Wait for the sync to arrive.
+            await bob.awaitRoomMembership(testRoomId);
+            return [bob, testRoomId];
+        });
+
+        await test.step("Alice logs out", async () => {
+            await logOutOfElement(page);
+        });
+
+        await test.step("Bob sends a message", async () => {
+            await bob.sendMessage(testRoomId, "test encrypted 1");
+        });
+
+        await test.step("Alice logs in again", async () => {
+            await page.getByRole("link", { name: "Sign in" }).click();
+            await page.getByRole("button", { name: "Continue" }).click();
+
+            await expect(page.getByText("Continue to Element?")).toBeVisible();
+            await page.getByRole("button", { name: "Continue" }).click();
+
+            await verifyAfterLogin(page, recoveryKey);
+            await app.viewRoomById(testRoomId);
+        });
+
+        await test.step("Alice can decrypt Bob's message", async () => {
+            await expect(page.getByText("test encrypted 1")).toBeVisible();
+        });
+    });
+});