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File: /var/www/api-management/test/roles/role.controller.findOne.e2e-spec.ts
import * as request from 'supertest';
import { Test } from '@nestjs/testing';
import { INestApplication } from '@nestjs/common';
import { RoleModule } from '../../src/app/roles/role.module';
import { RoleSchema } from '../../src/app/roles/schemas/role.schema';
import mongoose from 'mongoose';
import { MongoMemoryServer } from 'mongodb-memory-server';
import { MongooseModule } from '@nestjs/mongoose';

jest.setTimeout(30000);

describe('RoleController (e2e)', () => {
  let app: INestApplication;
  let mongoServer;
  let roleModel = mongoose.model('Role', RoleSchema);
  let role;

  // Seeder para el rol de prueba
  const seederRole = {
    nombre: 'Administrador',
    slug: 'administrador',
    descripcion: 'Rol con todos los permisos',
    permisos: [new mongoose.Types.ObjectId().toHexString()],
  };

  beforeAll(async () => {
    mongoServer = await MongoMemoryServer.create();
    const uri = mongoServer.getUri();
    await mongoose.connect(uri);
    roleModel = mongoose.model('Role', RoleSchema);
  });

  afterAll(async () => {
    await mongoose.disconnect();
    await mongoServer.stop();
  });

  beforeEach(async () => {
    const moduleRef = await Test.createTestingModule({
      imports: [
        MongooseModule.forRootAsync({
          useFactory: () => ({
            uri: mongoServer.getUri(),
            useNewUrlParser: true,
            useUnifiedTopology: true,
          }),
        }),
        RoleModule,
      ],
    }).compile();

    // Crear rol de prueba en la base de datos
    role = await roleModel.create(seederRole);
    app = moduleRef.createNestApplication();
    await app.init();
  });

  afterEach(async () => {
    // Limpiar la base de datos después de cada prueba
    await roleModel.deleteMany({});
    if (app) await app.close();
  });

  describe('GET /roles/:id', () => {
    it('debe retornar un rol por su ID', async () => {
      const expectedResponse = {
        data: {
          _id: role._id.toString(),
          nombre: role.nombre,
          slug: role.slug,
          descripcion: role.descripcion,
          permisos: role.permisos,
        },
        message: 'Consulta exitosa',
        summary: 'El elemento fue encontrado',
      };

      const response = await request(app.getHttpServer())
        .get(`/roles/${role._id}`)
        .set({
          'Content-Type': 'application/json',
          Accept: 'application/json',
        })
        .expect(200);

      expect(response.body).toEqual(expectedResponse);
    });
  });
});