finance/src/test/accounts.test.ts

import { describe, expect, it } from 'vitest';
import { GET as getAccount } from '../pages/api/accounts/[id]/index';
import { GET as listTransactions } from '../pages/api/accounts/[id]/transactions/index';
import { GET as listAccounts } from '../pages/api/accounts/index';
import { createMockAPIContext } from './setup';

describe('Accounts API', () => {
  describe('GET /api/accounts', () => {
    it('should return all accounts', async () => {
      const response = await listAccounts(createMockAPIContext());
      const accounts = await response.json();

      expect(response.status).toBe(200);
      expect(accounts).toHaveLength(2);
      expect(accounts[0]).toHaveProperty('id', '1');
      expect(accounts[1]).toHaveProperty('id', '2');
    });
  });

  describe('GET /api/accounts/:id', () => {
    it('should return a specific account', async () => {
      const response = await getAccount(
        createMockAPIContext({ params: { id: '1' } }) as APIContext,
      );
      const account = await response.json();

      expect(response.status).toBe(200);
      expect(account).toHaveProperty('id', '1');
      expect(account).toHaveProperty('name', 'Test Checking');
    });

    it('should return 404 for non-existent account', async () => {
      const response = await getAccount(
        createMockAPIContext({ params: { id: '999' } }) as APIContext,
      );
      const error = await response.json();

      expect(response.status).toBe(404);
      expect(error).toHaveProperty('error', 'Account not found');
    });
  });

  describe('GET /api/accounts/:id/transactions', () => {
    it('should return transactions for an account', async () => {
      const response = await listTransactions(
        createMockAPIContext({ params: { id: '1' } }) as APIContext,
      );
      const transactions = await response.json();

      expect(response.status).toBe(200);
      expect(transactions).toHaveLength(1);
      expect(transactions[0]).toHaveProperty('accountId', '1');
    });

    it('should return empty array for account with no transactions', async () => {
      const response = await listTransactions(
        createMockAPIContext({ params: { id: '999' } }) as APIContext,
      );
      const transactions = await response.json();

      expect(response.status).toBe(200);
      expect(transactions).toHaveLength(0);
    });
  });
});