Support dynamic room predecessors in SpaceHierarchy

Author: andybalaam

src/components/structures/SpaceHierarchy.tsx

@@ -67,6 +67,7 @@ import { Alignment } from "../views/elements/Tooltip";
 import { getTopic } from "../../hooks/room/useTopic";
 import { SdkContextClass } from "../../contexts/SDKContext";
 import { getDisplayAliasForAliasSet } from "../../Rooms";
+import SettingsStore from "../../settings/SettingsStore";
 
 interface IProps {
     space: Room;
@@ -425,7 +426,11 @@ interface IHierarchyLevelProps {
 }
 
 export const toLocalRoom = (cli: MatrixClient, room: IHierarchyRoom, hierarchy: RoomHierarchy): IHierarchyRoom => {
-    const history = cli.getRoomUpgradeHistory(room.room_id, true);
+    const history = cli.getRoomUpgradeHistory(
+        room.room_id,
+        true,
+        SettingsStore.getValue("feature_dynamic_room_predecessors"),
+    );
 
     // Pick latest room that is actually part of the hierarchy
     let cliRoom = null;

test/components/structures/SpaceHierarchy-test.tsx

@@ -15,6 +15,7 @@ limitations under the License.
 */
 
 import React from "react";
+import { mocked } from "jest-mock";
 import { render } from "@testing-library/react";
 import { MatrixClient } from "matrix-js-sdk/src/client";
 import { Room } from "matrix-js-sdk/src/models/room";
@@ -28,6 +29,7 @@ import { HierarchyLevel, showRoom, toLocalRoom } from "../../../src/components/s
 import { Action } from "../../../src/dispatcher/actions";
 import MatrixClientContext from "../../../src/contexts/MatrixClientContext";
 import DMRoomMap from "../../../src/utils/DMRoomMap";
+import SettingsStore from "../../../src/settings/SettingsStore";
 
 // Fake random strings to give a predictable snapshot for checkbox IDs
 jest.mock("matrix-js-sdk/src/randomstring", () => {
@@ -128,6 +130,34 @@ describe("SpaceHierarchy", () => {
             const localRoomV3 = toLocalRoom(client, { room_id: roomV3.roomId } as IHierarchyRoom, hierarchy);
             expect(localRoomV3.room_id).toEqual(roomV3.roomId);
         });
+
+        describe("If the feature_dynamic_room_predecessors is not enabled", () => {
+            beforeEach(() => {
+                jest.spyOn(SettingsStore, "getValue").mockReturnValue(false);
+            });
+            it("Passes through the dynamic predecessor setting", async () => {
+                mocked(client.getRoomUpgradeHistory).mockClear();
+                const hierarchy = { roomMap: new Map([]) } as RoomHierarchy;
+                toLocalRoom(client, { room_id: roomV1.roomId } as IHierarchyRoom, hierarchy);
+                expect(client.getRoomUpgradeHistory).toHaveBeenCalledWith(roomV1.roomId, true, false);
+            });
+        });
+
+        describe("If the feature_dynamic_room_predecessors is enabled", () => {
+            beforeEach(() => {
+                // Turn on feature_dynamic_room_predecessors setting
+                jest.spyOn(SettingsStore, "getValue").mockImplementation(
+                    (settingName) => settingName === "feature_dynamic_room_predecessors",
+                );
+            });
+
+            it("Passes through the dynamic predecessor setting", async () => {
+                mocked(client.getRoomUpgradeHistory).mockClear();
+                const hierarchy = { roomMap: new Map([]) } as RoomHierarchy;
+                toLocalRoom(client, { room_id: roomV1.roomId } as IHierarchyRoom, hierarchy);
+                expect(client.getRoomUpgradeHistory).toHaveBeenCalledWith(roomV1.roomId, true, true);
+            });
+        });
     });
 
     describe("<HierarchyLevel />", () => {