test typescriptification - timeline-window, scheduler, etc (#2539)

* spec/unit/user.spec.js -> spec/unit/user.spec.ts

* fix ts in user.spec

* renamed:    spec/unit/timeline-window.spec.js -> spec/unit/timeline-window.spec.ts

* overdo it fixing types in timeline-window.spec

* renamed spec/unit/sync-accumulator.spec.js spec/unit/sync-accumulator.spec.ts

* fix ts in sync-accumalator.spec

* spec/unit/scheduler.spec.js -> spec/unit/scheduler.spec.ts

* fix ts in scheduler.spec

* missed types in timeline-window spec

spec/unit/user.spec.ts

@@ -0,0 +1,97 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { User, UserEvent } from "../../src/models/user";
+import { mkEvent } from "../test-utils/test-utils";
+
+describe("User", function() {
+    const userId = "@alice:bar";
+    let user: User;
+
+    beforeEach(function() {
+        user = new User(userId);
+    });
+
+    describe("setPresenceEvent", function() {
+        const event = mkEvent({
+            type: "m.presence", content: {
+                presence: "online",
+                user_id: userId,
+                displayname: "Alice",
+                last_active_ago: 1085,
+                avatar_url: "mxc://foo/bar",
+            }, event: true,
+        });
+
+        it("should emit 'User.displayName' if the display name changes", function() {
+            let emitCount = 0;
+            user.on(UserEvent.DisplayName, function(ev, usr) {
+                emitCount += 1;
+            });
+            user.setPresenceEvent(event);
+            expect(emitCount).toEqual(1);
+            user.setPresenceEvent(event); // no-op
+            expect(emitCount).toEqual(1);
+        });
+
+        it("should emit 'User.avatarUrl' if the avatar URL changes", function() {
+            let emitCount = 0;
+            user.on(UserEvent.AvatarUrl, function(ev, usr) {
+                emitCount += 1;
+            });
+            user.setPresenceEvent(event);
+            expect(emitCount).toEqual(1);
+            user.setPresenceEvent(event); // no-op
+            expect(emitCount).toEqual(1);
+        });
+
+        it("should emit 'User.presence' if the presence changes", function() {
+            let emitCount = 0;
+            user.on(UserEvent.Presence, function(ev, usr) {
+                emitCount += 1;
+            });
+            user.setPresenceEvent(event);
+            expect(emitCount).toEqual(1);
+            user.setPresenceEvent(event); // no-op
+            expect(emitCount).toEqual(1);
+        });
+
+        it("should set User.displayName", function() {
+            user.setPresenceEvent(event);
+            expect(user.displayName).toEqual("Alice");
+        });
+
+        it("should set User.avatarUrl", function() {
+            user.setPresenceEvent(event);
+            expect(user.avatarUrl).toEqual("mxc://foo/bar");
+        });
+
+        it("should set User.presence", function() {
+            user.setPresenceEvent(event);
+            expect(user.presence).toEqual("online");
+        });
+
+        it("should set User.lastActiveAgo", function() {
+            user.setPresenceEvent(event);
+            expect(user.lastActiveAgo).toEqual(1085);
+        });
+
+        it("should set User.events.presence", function() {
+            user.setPresenceEvent(event);
+            expect(user.events.presence).toEqual(event);
+        });
+    });
+});