Javascript 我正在使用sinon.stub方法将我的服务包装在typescript中，它需要一个数组，但是我的模拟数据是一个对象，我如何解决这个问题

这是我正在做的服务

class TransactionService {
  async getTransactions(
    req: RequestContract,
    query: TransactionQuery
  ): Promise<Transaction[]> {
    const token = await Auth.headless({ nuban: query.nuban });
    const iris = new Iris({ req, token, headless: true, retries: 1 });

    return iris.get<Transaction[]>(`${env.proxy_url}/transactions/`, {
      params: query
    });
  }

  filterTransaction(req: Request, transactions: Transaction[]): Transaction[] {
    const accounts = req.session.accounts.map(account => account.acccount_number);
    return transactions.filter(transaction => accounts.includes(transaction.nuban));
  }
}

export const TransactionsService = new TransactionService();

最后是模拟数据

export function mockTransactions(account: string) {
  return {
    date: faker.date.recent(3),
    transaction_type: 'credit',
    amount: mockAmount(10000, 1000000, 4),
    remark: faker.random.words(10),
    reference: faker.random.words(5),
    nuban: account,
  };
}

这就是我得到的错误

TypeScript diagnostics (customize using `[jest-config].globals.ts-jest.diagnostics` option):
    __tests__/mocks/services/transaction.ts:6:65 - error TS2345: Argument of type '{ date: Date; transaction_type: string; amount: number; remark: string; reference: string; nuban: string; }' is not assignable to parameter of type 'Transaction[]'.
      Type '{ date: Date; transaction_type: string; amount: number; remark: string; reference: string; nuban: string; }' is missing the following properties from type 'Transaction[]': length, pop, push, concat, and 26 more.

    6     sinon.stub(TransactionsService, 'getTransactions').resolves(mockTransactions('0071326981'))

---

因此，

getTransactions

需要事务[]即事务数组，而我用mockTransactions传递对象时，您的getTransactions方法似乎需要事务[]，因此您应该能够修改模拟数据以返回包含事务对象的数组

export function mockTransactions(account: string): Transaction[] {
  return [
    {
      date: faker.date.recent(3),
      transaction_type: 'credit',
      amount: mockAmount(10000, 1000000, 4),
      remark: faker.random.words(10),
      reference: faker.random.words(5),
      nuban: account,
    }
  ];
}

---

所以这个给我修好了

我创建了一个数组函数

export function array<T>(size: number, fake: () => T): T[] {
  const values = [];
  for (let i = 0; i < size; i++) values.push(fake());

  return values;
}

然后在这里返回我的数组函数

export function mockTransactions(num: number): Transaction[] {
  return array(num, mockTransaction);
}

export function mockTransaction(): Transaction {
  return {
    date: faker.date.recent(3),
    transaction_type: 'credit',
    amount: mockAmount(10000, 1000000, 4),
    remark: faker.random.words(10),
    reference: faker.random.words(5),
    nuban: '0071326981',
  };
}

export function mockTransactions(num: number): Transaction[] {
  return array(num, mockTransaction);
}