test: adapt unit tests to HealthChat fork customizations

apps/web/test/unit-tests/components/views/settings/UserProfileSettings-test.tsx

@@ -18,6 +18,7 @@ import { mkStubRoom, stubClient } from "../../../../test-utils";
 import { ToastContext, type ToastRack } from "../../../../../src/contexts/ToastContext";
 import { OwnProfileStore } from "../../../../../src/stores/OwnProfileStore";
 import MatrixClientContext from "../../../../../src/contexts/MatrixClientContext";
+import { SdkContextClass } from "../../../../../src/contexts/SDKContext";
 import Modal from "../../../../../src/Modal";
 
 interface MockedAvatarSettingProps {
@@ -86,6 +87,9 @@ describe("ProfileSettings", () => {
 
     beforeEach(() => {
         client = stubClient();
+        // HealthChat's ExtendedProfileSettings reads the global SdkContextClass.instance.userProfilesStore,
+        // which requires the singleton client to be set (it is, on login, in the real app).
+        SdkContextClass.instance.client = client;
         toastRack = {
             displayToast: jest.fn().mockReturnValue(jest.fn()),
         };