fix(web): remove mock data from dashboard telemetry/tasks/calendar (#656)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/web/src/components/widgets/__tests__/CalendarWidget.test.tsx

@@ -1,16 +1,58 @@
 import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
-import { act, render, screen } from "@testing-library/react";
+import { render, screen, waitFor } from "@testing-library/react";
+import type { Event } from "@mosaic/shared";
 import { CalendarWidget } from "../CalendarWidget";
+import { fetchEvents } from "@/lib/api/events";
+
+vi.mock("@/lib/api/events", () => ({
+  fetchEvents: vi.fn(),
+}));
+
+const mockEvents: Event[] = [
+  {
+    id: "event-1",
+    title: "API Planning",
+    description: null,
+    startTime: new Date("2026-02-01T09:00:00Z"),
+    endTime: new Date("2026-02-01T09:30:00Z"),
+    allDay: false,
+    location: "Zoom",
+    recurrence: null,
+    creatorId: "user-1",
+    workspaceId: "workspace-1",
+    projectId: null,
+    metadata: {},
+    createdAt: new Date("2026-01-30T09:00:00Z"),
+    updatedAt: new Date("2026-01-30T09:00:00Z"),
+  },
+  {
+    id: "event-2",
+    title: "API Review",
+    description: null,
+    startTime: new Date("2026-02-02T10:00:00Z"),
+    endTime: new Date("2026-02-02T11:00:00Z"),
+    allDay: false,
+    location: "Room 1",
+    recurrence: null,
+    creatorId: "user-1",
+    workspaceId: "workspace-1",
+    projectId: null,
+    metadata: {},
+    createdAt: new Date("2026-01-30T09:00:00Z"),
+    updatedAt: new Date("2026-01-30T09:00:00Z"),
+  },
+];
 
 async function finishWidgetLoad(): Promise<void> {
-  await act(async () => {
-    await vi.advanceTimersByTimeAsync(500);
+  await waitFor(() => {
+    expect(screen.queryByText("Loading events...")).not.toBeInTheDocument();
   });
 }
 
 describe("CalendarWidget", (): void => {
   beforeEach((): void => {
-    vi.useFakeTimers();
+    vi.clearAllMocks();
+    vi.mocked(fetchEvents).mockResolvedValue(mockEvents);
     vi.setSystemTime(new Date("2026-02-01T08:00:00Z"));
   });
 
@@ -24,15 +66,15 @@ describe("CalendarWidget", (): void => {
     expect(screen.getByText("Loading events...")).toBeInTheDocument();
   });
 
-  it("renders upcoming events after loading", async (): Promise<void> => {
+  it("fetches and renders upcoming events after loading", async (): Promise<void> => {
     render(<CalendarWidget id="calendar-1" />);
 
     await finishWidgetLoad();
 
+    expect(fetchEvents).toHaveBeenCalledTimes(1);
     expect(screen.getByText("Upcoming Events")).toBeInTheDocument();
-    expect(screen.getByText("Team Standup")).toBeInTheDocument();
-    expect(screen.getByText("Project Review")).toBeInTheDocument();
-    expect(screen.getByText("Sprint Planning")).toBeInTheDocument();
+    expect(screen.getByText("API Planning")).toBeInTheDocument();
+    expect(screen.getByText("API Review")).toBeInTheDocument();
   });
 
   it("shows relative day labels", async (): Promise<void> => {
@@ -50,6 +92,15 @@ describe("CalendarWidget", (): void => {
     await finishWidgetLoad();
 
     expect(screen.getByText("Zoom")).toBeInTheDocument();
-    expect(screen.getByText("Conference Room A")).toBeInTheDocument();
+    expect(screen.getByText("Room 1")).toBeInTheDocument();
+  });
+
+  it("shows empty state when no events are returned", async (): Promise<void> => {
+    vi.mocked(fetchEvents).mockResolvedValueOnce([]);
+
+    render(<CalendarWidget id="calendar-1" />);
+    await finishWidgetLoad();
+
+    expect(screen.getByText("No upcoming events")).toBeInTheDocument();
   });
 });