singleton.ts

import { PrismaClient } from '@prisma/client';
import { ClerkClient } from '@clerk/backend';
import { mockDeep, mockReset, DeepMockProxy } from 'jest-mock-extended';

import prisma from './lib/db';
import clerk from './lib/clerkClient';
import * as clerkServer from '@clerk/nextjs/server';

jest.mock('./lib/db', () => ({
  __esModule: true,
  default: mockDeep<PrismaClient>(),
}));

beforeEach(() => {
  mockReset(prismaMock);
});

export const prismaMock = prisma as unknown as DeepMockProxy<PrismaClient>;

jest.mock('./lib/clerkClient', () => ({
  __esModule: true,
  default: mockDeep<ClerkClient>(),
}));

beforeEach(() => {
  mockReset(clerkMock);
});

export const clerkMock = clerk as unknown as DeepMockProxy<ClerkClient>;

jest.mock('@clerk/nextjs/server');

beforeEach(() => {
  (clerkServer.currentUser as jest.Mock).mockReturnValue(
    Promise.resolve(global.__USER__)
  );
});