Display rooms & threads as unread (bold) if threads have unread messages. (#9763)

Co-authored-by: Germain <germain@souquet.com>
Co-authored-by: Germain <germains@element.io>
Fixes https://github.com/vector-im/element-web/issues/23907

test/Unread-test.ts

@@ -15,100 +15,306 @@ limitations under the License.
 */
 
 import { mocked } from "jest-mock";
-import { MatrixEvent, EventType, MsgType } from "matrix-js-sdk/src/matrix";
+import { MatrixEvent, EventType, MsgType, Room } from "matrix-js-sdk/src/matrix";
+import { ReceiptType } from "matrix-js-sdk/src/@types/read_receipts";
 
 import { haveRendererForEvent } from "../src/events/EventTileFactory";
-import { getMockClientWithEventEmitter, makeBeaconEvent, mockClientMethodsUser } from "./test-utils";
-import { eventTriggersUnreadCount } from "../src/Unread";
+import { makeBeaconEvent, mkEvent, stubClient } from "./test-utils";
+import { mkThread } from "./test-utils/threads";
+import { doesRoomHaveUnreadMessages, eventTriggersUnreadCount } from "../src/Unread";
+import { MatrixClientPeg } from "../src/MatrixClientPeg";
 
 jest.mock("../src/events/EventTileFactory", () => ({
     haveRendererForEvent: jest.fn(),
 }));
 
-describe("eventTriggersUnreadCount()", () => {
+describe("Unread", () => {
+    // A different user.
     const aliceId = "@alice:server.org";
-    const bobId = "@bob:server.org";
+    stubClient();
+    const client = MatrixClientPeg.get();
 
-    // mock user credentials
-    getMockClientWithEventEmitter({
-        ...mockClientMethodsUser(bobId),
-    });
+    describe("eventTriggersUnreadCount()", () => {
+        // setup events
+        const alicesMessage = new MatrixEvent({
+            type: EventType.RoomMessage,
+            sender: aliceId,
+            content: {
+                msgtype: MsgType.Text,
+                body: "Hello from Alice",
+            },
+        });
 
-    // setup events
-    const alicesMessage = new MatrixEvent({
-        type: EventType.RoomMessage,
-        sender: aliceId,
-        content: {
-            msgtype: MsgType.Text,
-            body: "Hello from Alice",
-        },
-    });
+        const ourMessage = new MatrixEvent({
+            type: EventType.RoomMessage,
+            sender: client.getUserId()!,
+            content: {
+                msgtype: MsgType.Text,
+                body: "Hello from Bob",
+            },
+        });
 
-    const bobsMessage = new MatrixEvent({
-        type: EventType.RoomMessage,
-        sender: bobId,
-        content: {
-            msgtype: MsgType.Text,
-            body: "Hello from Bob",
-        },
-    });
-
-    const redactedEvent = new MatrixEvent({
-        type: EventType.RoomMessage,
-        sender: aliceId,
-    });
-    redactedEvent.makeRedacted(redactedEvent);
-
-    beforeEach(() => {
-        jest.clearAllMocks();
-        mocked(haveRendererForEvent).mockClear().mockReturnValue(false);
-    });
-
-    it("returns false when the event was sent by the current user", () => {
-        expect(eventTriggersUnreadCount(bobsMessage)).toBe(false);
-        // returned early before checking renderer
-        expect(haveRendererForEvent).not.toHaveBeenCalled();
-    });
-
-    it("returns false for a redacted event", () => {
-        expect(eventTriggersUnreadCount(redactedEvent)).toBe(false);
-        // returned early before checking renderer
-        expect(haveRendererForEvent).not.toHaveBeenCalled();
-    });
-
-    it("returns false for an event without a renderer", () => {
-        mocked(haveRendererForEvent).mockReturnValue(false);
-        expect(eventTriggersUnreadCount(alicesMessage)).toBe(false);
-        expect(haveRendererForEvent).toHaveBeenCalledWith(alicesMessage, false);
-    });
-
-    it("returns true for an event with a renderer", () => {
-        mocked(haveRendererForEvent).mockReturnValue(true);
-        expect(eventTriggersUnreadCount(alicesMessage)).toBe(true);
-        expect(haveRendererForEvent).toHaveBeenCalledWith(alicesMessage, false);
-    });
-
-    it("returns false for beacon locations", () => {
-        const beaconLocationEvent = makeBeaconEvent(aliceId);
-        expect(eventTriggersUnreadCount(beaconLocationEvent)).toBe(false);
-        expect(haveRendererForEvent).not.toHaveBeenCalled();
-    });
-
-    const noUnreadEventTypes = [
-        EventType.RoomMember,
-        EventType.RoomThirdPartyInvite,
-        EventType.CallAnswer,
-        EventType.CallHangup,
-        EventType.RoomCanonicalAlias,
-        EventType.RoomServerAcl,
-    ];
-
-    it.each(noUnreadEventTypes)("returns false without checking for renderer for events with type %s", (eventType) => {
-        const event = new MatrixEvent({
-            type: eventType,
+        const redactedEvent = new MatrixEvent({
+            type: EventType.RoomMessage,
             sender: aliceId,
         });
-        expect(eventTriggersUnreadCount(event)).toBe(false);
-        expect(haveRendererForEvent).not.toHaveBeenCalled();
+        redactedEvent.makeRedacted(redactedEvent);
+
+        beforeEach(() => {
+            jest.clearAllMocks();
+            mocked(haveRendererForEvent).mockClear().mockReturnValue(false);
+        });
+
+        it("returns false when the event was sent by the current user", () => {
+            expect(eventTriggersUnreadCount(ourMessage)).toBe(false);
+            // returned early before checking renderer
+            expect(haveRendererForEvent).not.toHaveBeenCalled();
+        });
+
+        it("returns false for a redacted event", () => {
+            expect(eventTriggersUnreadCount(redactedEvent)).toBe(false);
+            // returned early before checking renderer
+            expect(haveRendererForEvent).not.toHaveBeenCalled();
+        });
+
+        it("returns false for an event without a renderer", () => {
+            mocked(haveRendererForEvent).mockReturnValue(false);
+            expect(eventTriggersUnreadCount(alicesMessage)).toBe(false);
+            expect(haveRendererForEvent).toHaveBeenCalledWith(alicesMessage, false);
+        });
+
+        it("returns true for an event with a renderer", () => {
+            mocked(haveRendererForEvent).mockReturnValue(true);
+            expect(eventTriggersUnreadCount(alicesMessage)).toBe(true);
+            expect(haveRendererForEvent).toHaveBeenCalledWith(alicesMessage, false);
+        });
+
+        it("returns false for beacon locations", () => {
+            const beaconLocationEvent = makeBeaconEvent(aliceId);
+            expect(eventTriggersUnreadCount(beaconLocationEvent)).toBe(false);
+            expect(haveRendererForEvent).not.toHaveBeenCalled();
+        });
+
+        const noUnreadEventTypes = [
+            EventType.RoomMember,
+            EventType.RoomThirdPartyInvite,
+            EventType.CallAnswer,
+            EventType.CallHangup,
+            EventType.RoomCanonicalAlias,
+            EventType.RoomServerAcl,
+        ];
+
+        it.each(noUnreadEventTypes)(
+            "returns false without checking for renderer for events with type %s",
+            (eventType) => {
+                const event = new MatrixEvent({
+                    type: eventType,
+                    sender: aliceId,
+                });
+                expect(eventTriggersUnreadCount(event)).toBe(false);
+                expect(haveRendererForEvent).not.toHaveBeenCalled();
+            },
+        );
+    });
+
+    describe("doesRoomHaveUnreadMessages()", () => {
+        let room: Room;
+        let event: MatrixEvent;
+        const roomId = "!abc:server.org";
+        const myId = client.getUserId()!;
+
+        beforeAll(() => {
+            client.supportsExperimentalThreads = () => true;
+        });
+
+        beforeEach(() => {
+            // Create a room and initial event in it.
+            room = new Room(roomId, client, myId);
+            event = mkEvent({
+                event: true,
+                type: "m.room.message",
+                user: aliceId,
+                room: roomId,
+                content: {},
+            });
+            room.addLiveEvents([event]);
+
+            // Don't care about the code path of hidden events.
+            mocked(haveRendererForEvent).mockClear().mockReturnValue(true);
+        });
+
+        it("returns true for a room with no receipts", () => {
+            expect(doesRoomHaveUnreadMessages(room)).toBe(true);
+        });
+
+        it("returns false for a room when the latest event was sent by the current user", () => {
+            event = mkEvent({
+                event: true,
+                type: "m.room.message",
+                user: myId,
+                room: roomId,
+                content: {},
+            });
+            // Only for timeline events.
+            room.addLiveEvents([event]);
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(false);
+        });
+
+        it("returns false for a room when the read receipt is at the latest event", () => {
+            const receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(false);
+        });
+
+        it("returns true for a room when the read receipt is earlier than the latest event", () => {
+            const receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            const event2 = mkEvent({
+                event: true,
+                type: "m.room.message",
+                user: aliceId,
+                room: roomId,
+                content: {},
+            });
+            // Only for timeline events.
+            room.addLiveEvents([event2]);
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(true);
+        });
+
+        it("returns true for a room with an unread message in a thread", () => {
+            // Mark the main timeline as read.
+            const receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            // Create a thread as a different user.
+            mkThread({ room, client, authorId: myId, participantUserIds: [aliceId] });
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(true);
+        });
+
+        it("returns false for a room when the latest thread event was sent by the current user", () => {
+            // Mark the main timeline as read.
+            const receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            // Create a thread as the current user.
+            mkThread({ room, client, authorId: myId, participantUserIds: [myId] });
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(false);
+        });
+
+        it("returns false for a room with read thread messages", () => {
+            // Mark the main timeline as read.
+            let receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            // Create threads.
+            const { rootEvent, events } = mkThread({ room, client, authorId: myId, participantUserIds: [aliceId] });
+
+            // Mark the thread as read.
+            receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [events[events.length - 1].getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1, thread_id: rootEvent.getId()! },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(false);
+        });
+
+        it("returns true for a room when read receipt is not on the latest thread messages", () => {
+            // Mark the main timeline as read.
+            let receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [event.getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1 },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            // Create threads.
+            const { rootEvent, events } = mkThread({ room, client, authorId: myId, participantUserIds: [aliceId] });
+
+            // Mark the thread as read.
+            receipt = new MatrixEvent({
+                type: "m.receipt",
+                room_id: "!foo:bar",
+                content: {
+                    [events[0].getId()!]: {
+                        [ReceiptType.Read]: {
+                            [myId]: { ts: 1, threadId: rootEvent.getId()! },
+                        },
+                    },
+                },
+            });
+            room.addReceipt(receipt);
+
+            expect(doesRoomHaveUnreadMessages(room)).toBe(true);
+        });
     });
 });

test/components/views/context_menus/__snapshots__/RoomGeneralContextMenu-test.tsx.snap

@@ -21,27 +21,7 @@ exports[`RoomGeneralContextMenu renders an empty context menu for archived rooms
       >
         <div
           class="mx_IconizedContextMenu_optionList mx_IconizedContextMenu_optionList_notFirst"
-        >
-          <div
-            aria-checked="false"
-            aria-label="Mark as read"
-            class="mx_AccessibleButton mx_IconizedContextMenu_item"
-            role="menuitemcheckbox"
-            tabindex="0"
-          >
-            <span
-              class="mx_IconizedContextMenu_icon mx_RoomGeneralContextMenu_iconMarkAsRead"
-            />
-            <span
-              class="mx_IconizedContextMenu_label"
-            >
-              Mark as read
-            </span>
-            <span
-              class="mx_IconizedContextMenu_icon mx_IconizedContextMenu_unchecked"
-            />
-          </div>
-        </div>
+        />
         <div
           class="mx_IconizedContextMenu_optionList mx_IconizedContextMenu_optionList_notFirst mx_IconizedContextMenu_optionList_red"
         >
@@ -88,27 +68,7 @@ exports[`RoomGeneralContextMenu renders the default context menu 1`] = `
       >
         <div
           class="mx_IconizedContextMenu_optionList mx_IconizedContextMenu_optionList_notFirst"
-        >
-          <div
-            aria-checked="false"
-            aria-label="Mark as read"
-            class="mx_AccessibleButton mx_IconizedContextMenu_item"
-            role="menuitemcheckbox"
-            tabindex="0"
-          >
-            <span
-              class="mx_IconizedContextMenu_icon mx_RoomGeneralContextMenu_iconMarkAsRead"
-            />
-            <span
-              class="mx_IconizedContextMenu_label"
-            >
-              Mark as read
-            </span>
-            <span
-              class="mx_IconizedContextMenu_icon mx_IconizedContextMenu_unchecked"
-            />
-          </div>
-        </div>
+        />
         <div
           class="mx_IconizedContextMenu_optionList mx_IconizedContextMenu_optionList_notFirst mx_IconizedContextMenu_optionList_red"
         >

test/components/views/right_panel/RoomHeaderButtons-test.tsx

@@ -15,15 +15,18 @@ limitations under the License.
 */
 
 import { render } from "@testing-library/react";
+import { MatrixEvent, MsgType, RelationType } from "matrix-js-sdk/src/matrix";
 import { MatrixClient, PendingEventOrdering } from "matrix-js-sdk/src/client";
 import { Feature, ServerSupport } from "matrix-js-sdk/src/feature";
 import { NotificationCountType, Room } from "matrix-js-sdk/src/models/room";
+import { ReceiptType } from "matrix-js-sdk/src/@types/read_receipts";
 import React from "react";
 
 import RoomHeaderButtons from "../../../../src/components/views/right_panel/RoomHeaderButtons";
 import { MatrixClientPeg } from "../../../../src/MatrixClientPeg";
 import SettingsStore from "../../../../src/settings/SettingsStore";
-import { stubClient } from "../../../test-utils";
+import { mkEvent, stubClient } from "../../../test-utils";
+import { mkThread } from "../../../test-utils/threads";
 
 describe("RoomHeaderButtons-test.tsx", function () {
     const ROOM_ID = "!roomId:example.org";
@@ -35,6 +38,7 @@ describe("RoomHeaderButtons-test.tsx", function () {
 
         stubClient();
         client = MatrixClientPeg.get();
+        client.supportsExperimentalThreads = () => true;
         room = new Room(ROOM_ID, client, client.getUserId() ?? "", {
             pendingEventOrdering: PendingEventOrdering.Detached,
         });
@@ -48,12 +52,12 @@ describe("RoomHeaderButtons-test.tsx", function () {
         return render(<RoomHeaderButtons room={room} excludedRightPanelPhaseButtons={[]} />);
     }
 
-    function getThreadButton(container) {
+    function getThreadButton(container: HTMLElement) {
         return container.querySelector(".mx_RightPanel_threadsButton");
     }
 
-    function isIndicatorOfType(container, type: "red" | "gray") {
-        return container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator").className.includes(type);
+    function isIndicatorOfType(container: HTMLElement, type: "red" | "gray" | "bold") {
+        return container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")!.className.includes(type);
     }
 
     it("shows the thread button", () => {
@@ -76,7 +80,7 @@ describe("RoomHeaderButtons-test.tsx", function () {
         expect(container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")).toBeNull();
     });
 
-    it("room wide notification does not change the thread button", () => {
+    it("thread notification does change the thread button", () => {
         const { container } = getComponent(room);
 
         room.setThreadUnreadNotificationCount("$123", NotificationCountType.Total, 1);
@@ -91,6 +95,85 @@ describe("RoomHeaderButtons-test.tsx", function () {
         expect(container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")).toBeNull();
     });
 
+    it("thread activity does change the thread button", async () => {
+        const { container } = getComponent(room);
+
+        // Thread activity should appear on the icon.
+        const { rootEvent, events } = mkThread({
+            room,
+            client,
+            authorId: client.getUserId()!,
+            participantUserIds: ["@alice:example.org"],
+        });
+        expect(isIndicatorOfType(container, "bold")).toBe(true);
+
+        // Sending the last event should clear the notification.
+        let event = mkEvent({
+            event: true,
+            type: "m.room.message",
+            user: client.getUserId()!,
+            room: room.roomId,
+            content: {
+                "msgtype": MsgType.Text,
+                "body": "Test",
+                "m.relates_to": {
+                    event_id: rootEvent.getId(),
+                    rel_type: RelationType.Thread,
+                },
+            },
+        });
+        room.addLiveEvents([event]);
+        await expect(container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")).toBeNull();
+
+        // Mark it as unread again.
+        event = mkEvent({
+            event: true,
+            type: "m.room.message",
+            user: "@alice:example.org",
+            room: room.roomId,
+            content: {
+                "msgtype": MsgType.Text,
+                "body": "Test",
+                "m.relates_to": {
+                    event_id: rootEvent.getId(),
+                    rel_type: RelationType.Thread,
+                },
+            },
+        });
+        room.addLiveEvents([event]);
+        expect(isIndicatorOfType(container, "bold")).toBe(true);
+
+        // Sending a read receipt on an earlier event shouldn't do anything.
+        let receipt = new MatrixEvent({
+            type: "m.receipt",
+            room_id: room.roomId,
+            content: {
+                [events.at(-1)!.getId()!]: {
+                    [ReceiptType.Read]: {
+                        [client.getUserId()!]: { ts: 1, thread_id: rootEvent.getId() },
+                    },
+                },
+            },
+        });
+        room.addReceipt(receipt);
+        expect(isIndicatorOfType(container, "bold")).toBe(true);
+
+        // Sending a receipt on the latest event should clear the notification.
+        receipt = new MatrixEvent({
+            type: "m.receipt",
+            room_id: room.roomId,
+            content: {
+                [event.getId()!]: {
+                    [ReceiptType.Read]: {
+                        [client.getUserId()!]: { ts: 1, thread_id: rootEvent.getId() },
+                    },
+                },
+            },
+        });
+        room.addReceipt(receipt);
+        expect(container.querySelector(".mx_RightPanel_threadsButton .mx_Indicator")).toBeNull();
+    });
+
     it("does not explode without a room", () => {
         client.canSupport.set(Feature.ThreadUnreadNotifications, ServerSupport.Unsupported);
         expect(() => getComponent()).not.toThrow();

test/components/views/rooms/EventTile-test.tsx

@@ -141,9 +141,10 @@ describe("EventTile", () => {
             mxEvent = rootEvent;
         });
 
-        it("shows an unread notification bage", () => {
+        it("shows an unread notification badge", () => {
             const { container } = getComponent({}, TimelineRenderingType.ThreadsList);
 
+            // By default, the thread will assume it is read.
             expect(container.getElementsByClassName("mx_NotificationBadge")).toHaveLength(0);
 
             act(() => {

test/components/views/rooms/NotificationBadge/UnreadNotificationBadge-test.tsx

@@ -17,13 +17,15 @@ limitations under the License.
 import React from "react";
 import "jest-mock";
 import { screen, act, render } from "@testing-library/react";
-import { MatrixClient, PendingEventOrdering } from "matrix-js-sdk/src/client";
+import { MatrixEvent, MsgType, RelationType } from "matrix-js-sdk/src/matrix";
+import { PendingEventOrdering } from "matrix-js-sdk/src/client";
 import { NotificationCountType, Room } from "matrix-js-sdk/src/models/room";
-import { mocked } from "jest-mock";
 import { EventStatus } from "matrix-js-sdk/src/models/event-status";
+import { ReceiptType } from "matrix-js-sdk/src/@types/read_receipts";
 
+import { mkThread } from "../../../../test-utils/threads";
 import { UnreadNotificationBadge } from "../../../../../src/components/views/rooms/NotificationBadge/UnreadNotificationBadge";
-import { mkMessage, stubClient } from "../../../../test-utils/test-utils";
+import { mkEvent, mkMessage, stubClient } from "../../../../test-utils/test-utils";
 import { MatrixClientPeg } from "../../../../../src/MatrixClientPeg";
 import * as RoomNotifs from "../../../../../src/RoomNotifs";
 
@@ -34,28 +36,57 @@ jest.mock("../../../../../src/RoomNotifs", () => ({
 }));
 
 const ROOM_ID = "!roomId:example.org";
-let THREAD_ID;
+let THREAD_ID: string;
 
 describe("UnreadNotificationBadge", () => {
-    let mockClient: MatrixClient;
+    stubClient();
+    const client = MatrixClientPeg.get();
     let room: Room;
 
     function getComponent(threadId?: string) {
         return <UnreadNotificationBadge room={room} threadId={threadId} />;
     }
 
+    beforeAll(() => {
+        client.supportsExperimentalThreads = () => true;
+    });
+
     beforeEach(() => {
         jest.clearAllMocks();
 
-        stubClient();
-        mockClient = mocked(MatrixClientPeg.get());
-
-        room = new Room(ROOM_ID, mockClient, mockClient.getUserId() ?? "", {
+        room = new Room(ROOM_ID, client, client.getUserId()!, {
             pendingEventOrdering: PendingEventOrdering.Detached,
         });
+
+        const receipt = new MatrixEvent({
+            type: "m.receipt",
+            room_id: room.roomId,
+            content: {
+                "$event0:localhost": {
+                    [ReceiptType.Read]: {
+                        [client.getUserId()!]: { ts: 1, thread_id: "$otherthread:localhost" },
+                    },
+                },
+                "$event1:localhost": {
+                    [ReceiptType.Read]: {
+                        [client.getUserId()!]: { ts: 1 },
+                    },
+                },
+            },
+        });
+        room.addReceipt(receipt);
+
         room.setUnreadNotificationCount(NotificationCountType.Total, 1);
         room.setUnreadNotificationCount(NotificationCountType.Highlight, 0);
 
+        const { rootEvent } = mkThread({
+            room,
+            client,
+            authorId: client.getUserId()!,
+            participantUserIds: [client.getUserId()!],
+        });
+        THREAD_ID = rootEvent.getId()!;
+
         room.setThreadUnreadNotificationCount(THREAD_ID, NotificationCountType.Total, 1);
         room.setThreadUnreadNotificationCount(THREAD_ID, NotificationCountType.Highlight, 0);
 
@@ -125,4 +156,34 @@ describe("UnreadNotificationBadge", () => {
         const { container } = render(getComponent());
         expect(container.querySelector(".mx_NotificationBadge")).toBeNull();
     });
+
+    it("activity renders unread notification badge", () => {
+        act(() => {
+            room.setThreadUnreadNotificationCount(THREAD_ID, NotificationCountType.Total, 0);
+            room.setThreadUnreadNotificationCount(THREAD_ID, NotificationCountType.Highlight, 0);
+
+            // Add another event on the thread which is not sent by us.
+            const event = mkEvent({
+                event: true,
+                type: "m.room.message",
+                user: "@alice:server.org",
+                room: room.roomId,
+                content: {
+                    "msgtype": MsgType.Text,
+                    "body": "Hello from Bob",
+                    "m.relates_to": {
+                        event_id: THREAD_ID,
+                        rel_type: RelationType.Thread,
+                    },
+                },
+                ts: 5,
+            });
+            room.addLiveEvents([event]);
+        });
+
+        const { container } = render(getComponent(THREAD_ID));
+        expect(container.querySelector(".mx_NotificationBadge_dot")).toBeTruthy();
+        expect(container.querySelector(".mx_NotificationBadge_visible")).toBeTruthy();
+        expect(container.querySelector(".mx_NotificationBadge_highlighted")).toBeFalsy();
+    });
 });

test/components/views/rooms/__snapshots__/RoomTile-test.tsx.snap

@@ -3,7 +3,7 @@
 exports[`RoomTile should render the room 1`] = `
 <div>
   <div
-    aria-label="!1:​example.org Unread messages."
+    aria-label="!1:​example.org"
     aria-selected="false"
     class="mx_AccessibleButton mx_RoomTile"
     role="treeitem"
@@ -37,7 +37,7 @@ exports[`RoomTile should render the room 1`] = `
       class="mx_RoomTile_titleContainer"
     >
       <div
-        class="mx_RoomTile_title mx_RoomTile_titleHasUnreadEvents"
+        class="mx_RoomTile_title"
         tabindex="-1"
         title="!1:​example.org"
       >
@@ -51,15 +51,7 @@ exports[`RoomTile should render the room 1`] = `
     <div
       aria-hidden="true"
       class="mx_RoomTile_badgeContainer"
-    >
-      <div
-        class="mx_NotificationBadge mx_NotificationBadge_visible mx_NotificationBadge_dot"
-      >
-        <span
-          class="mx_NotificationBadge_count"
-        />
-      </div>
-    </div>
+    />
     <div
       aria-expanded="false"
       aria-haspopup="true"