import { Test, TestingModule } from '@nestjs/testing';
import { SseService } from './sse.service';
import { Key } from 'src/model/entitites';

describe('SseService', () => {
  let service: SseService;
  const userId = 'testuserid-54';

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [SseService],
    }).compile();

    service = module.get<SseService>(SseService);
  });

  it('should be defined', () => {
    expect(service).toBeDefined();
  });

  it('should register new SSE clients', () => {
    
    const res = service.register(userId);
    expect(service["clients"].has(userId)).toBeTruthy();
  });

  it('should send keys to User', () => {
    const sub = service.register(userId);
    const key = new Key();
    const keyId = 'testkey-123';
    key.id = keyId;
    sub.subscribe({
      next: val => {
        expect(val.data).toBeTruthy();

        expect(val.data[0]?.id).toBe(keyId)
      }
    })
    service.sendKeysToUsers(userId, [key]);
    
  })
});