Add UserProfilesStore, LruCache and cache for user permalink profiles (#10425)

test/contexts/SdkContext-test.ts

@@ -14,16 +14,30 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import { MatrixClient } from "matrix-js-sdk/src/matrix";
+
 import { SdkContextClass } from "../../src/contexts/SDKContext";
+import { UserProfilesStore } from "../../src/stores/UserProfilesStore";
 import { VoiceBroadcastPreRecordingStore } from "../../src/voice-broadcast";
+import { createTestClient } from "../test-utils";
 
 jest.mock("../../src/voice-broadcast/stores/VoiceBroadcastPreRecordingStore");
 
 describe("SdkContextClass", () => {
-    const sdkContext = SdkContextClass.instance;
+    let sdkContext = SdkContextClass.instance;
+    let client: MatrixClient;
+
+    beforeAll(() => {
+        client = createTestClient();
+    });
+
+    beforeEach(() => {
+        sdkContext = new SdkContextClass();
+    });
 
     it("instance should always return the same instance", () => {
-        expect(SdkContextClass.instance).toBe(sdkContext);
+        const globalInstance = SdkContextClass.instance;
+        expect(SdkContextClass.instance).toBe(globalInstance);
     });
 
     it("voiceBroadcastPreRecordingStore should always return the same VoiceBroadcastPreRecordingStore", () => {
@@ -31,4 +45,29 @@ describe("SdkContextClass", () => {
         expect(first).toBeInstanceOf(VoiceBroadcastPreRecordingStore);
         expect(sdkContext.voiceBroadcastPreRecordingStore).toBe(first);
     });
+
+    it("userProfilesStore should raise an error without a client", () => {
+        expect(() => {
+            sdkContext.userProfilesStore;
+        }).toThrow("Unable to create UserProfilesStore without a client");
+    });
+
+    describe("when SDKContext has a client", () => {
+        beforeEach(() => {
+            sdkContext.client = client;
+        });
+
+        it("userProfilesStore should return a UserProfilesStore", () => {
+            const store = sdkContext.userProfilesStore;
+            expect(store).toBeInstanceOf(UserProfilesStore);
+            // it should return the same instance
+            expect(sdkContext.userProfilesStore).toBe(store);
+        });
+
+        it("onLoggedOut should clear the UserProfilesStore", () => {
+            const store = sdkContext.userProfilesStore;
+            sdkContext.onLoggedOut();
+            expect(sdkContext.userProfilesStore).not.toBe(store);
+        });
+    });
 });