Scheduler - Fix TypeScript errors in appointment popup test mocks

Author: aleksei-semikozov

packages/devextreme/js/__internal/scheduler/__tests__/__mock__/create_appointment_popup.ts

@@ -61,7 +61,7 @@ interface CreateAppointmentPopupOptions {
   firstDayOfWeek?: number;
   startDayHour?: number;
   onAppointmentFormOpening?: (...args: unknown[]) => void;
-  onSave?: jest.Mock;
+  onSave?: jest.Mock<(appointment: Record<string, unknown>) => PromiseLike<unknown>>;
   title?: string;
   readOnly?: boolean;
   addAppointment?: jest.Mock;
@@ -78,7 +78,7 @@ interface CreateAppointmentPopupResult {
     updateAppointment: jest.Mock;
     focus: jest.Mock;
     updateScrollPosition: jest.Mock;
-    onSave: jest.Mock;
+    onSave: jest.Mock<(appointment: Record<string, unknown>) => PromiseLike<unknown>>;
   };
   dispose: () => void;
 }
@@ -113,7 +113,8 @@ export const createAppointmentPopup = async (
     ?? jest.fn(resolvedDeferred);
   const focus = jest.fn();
   const updateScrollPosition = jest.fn();
-  const onSave = options.onSave ?? jest.fn(resolvedDeferred);
+  const onSave = options.onSave
+    ?? jest.fn<(appointment: Record<string, unknown>) => PromiseLike<unknown>>(resolvedDeferred);
 
   const formSchedulerProxy = {
     getResourceById: (): Record<string, unknown> => resourceManager.resourceById,

packages/devextreme/js/__internal/scheduler/appointment_popup/appointment_popup.test.ts

@@ -116,12 +116,14 @@ describe('Isolated AppointmentPopup environment', () => {
 
   it('should support composite onSave for exclude-from-series scenario', async () => {
     const updateAppointment = jest.fn();
-    const addAppointment = jest.fn(() => Promise.resolve());
+    const addAppointment = jest.fn<(appointment: Record<string, unknown>) => Promise<void>>(
+      () => Promise.resolve(),
+    );
 
     const sourceAppointment = { text: 'Series', recurrenceRule: 'FREQ=DAILY' };
     const updatedAppointment = { text: 'Series', recurrenceException: '20210426' };
 
-    const onSave = jest.fn((newAppointment) => {
+    const onSave = jest.fn((newAppointment: Record<string, unknown>) => {
       updateAppointment(sourceAppointment, updatedAppointment);
       return addAppointment(newAppointment);
     });