สร้าง Nest Application

const moduleRef = await Test.createTestingModule({
  imports: [TodoModule],
}).compile();

const app = moduleRef.createNestApplication();

import { INestApplication, ValidationPipe } from "@nestjs/common";
import { Test, TestingModule } from "@nestjs/testing";
import request from "supertest";

import { TodoModule } from "../src/todo.module";

describe("Todo E2E", () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleRef: TestingModule = await Test.createTestingModule({
      imports: [TodoModule],
    }).compile();

    app = moduleRef.createNestApplication();
    app.useGlobalPipes(
      new ValidationPipe({
        transform: true,
        whitelist: true,
        forbidNonWhitelisted: true,
      }),
    );
    await app.init();
  });

  afterAll(async () => {
    await app.close();
  });
});