[48] added tests

__test__/components/EventModifications.test.tsx

@@ -0,0 +1,87 @@
+import { CalendarApi } from "@fullcalendar/core";
+import { jest } from "@jest/globals";
+import { ThunkDispatch } from "@reduxjs/toolkit";
+import "@testing-library/jest-dom";
+import { screen } from "@testing-library/react";
+import * as appHooks from "../../src/app/hooks";
+import CalendarApp from "../../src/components/Calendar/Calendar";
+import { renderWithProviders } from "../utils/Renderwithproviders";
+
+describe("CalendarApp integration", () => {
+  const today = new Date();
+  const start = new Date(today);
+  start.setHours(10, 0, 0, 0);
+  const end = new Date(today);
+  end.setHours(11, 0, 0, 0);
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    const dispatch = jest.fn() as ThunkDispatch<any, any, any>;
+    jest.spyOn(appHooks, "useAppDispatch").mockReturnValue(dispatch);
+    jest.useFakeTimers(); // optional
+  });
+
+  const renderCalendar = () => {
+    const preloadedState = {
+      user: {
+        userData: {
+          sub: "test",
+          email: "test@test.com",
+          sid: "mockSid",
+          openpaasId: "667037022b752d0026472254",
+        },
+        tokens: { accessToken: "token" }, // required to avoid redirect
+      },
+      calendars: {
+        list: {
+          "667037022b752d0026472254/cal1": {
+            name: "Calendar 1",
+            color: "#FF0000",
+            events: {
+              event1: {
+                id: "event1",
+                calId: "667037022b752d0026472254/cal1",
+                uid: "event1",
+                title: "Test Event",
+                start: start.toISOString(),
+                end: end.toISOString(),
+              },
+            },
+          },
+        },
+        pending: false,
+      },
+    };
+
+    renderWithProviders(<CalendarApp />, preloadedState);
+  };
+
+  it("renders the event on the calendar and calendarRef works", async () => {
+    const dispatch = appHooks.useAppDispatch();
+
+    renderCalendar();
+    const calendarRef: React.RefObject<CalendarApi | null> = (window as any)
+      .__calendarRef;
+
+    const calendarApi = calendarRef.current;
+
+    // Wait for the FullCalendar DOM to populate
+    const eventEl = await screen.findByText(
+      "Test Event",
+      {},
+      { timeout: 3000 }
+    );
+    expect(eventEl).toBeInTheDocument();
+
+    if (calendarApi) {
+      const fcEvent = calendarApi.getEventById("event1");
+      expect(fcEvent?.title).toBe("Test Event");
+      const oldEnd = new Date(today.getTime() + 3600000); // +1 hour
+      const newEnd = new Date(oldEnd.getTime() + 1800000); // +30 min
+
+      fcEvent?.setEnd(newEnd);
+
+      expect(dispatch).toHaveBeenCalled();
+    }
+  });
+});