在节点中使用 jest 模拟 stripe api

Question

我想模拟 stripe api 但不知道该怎么做。我正在使用下面的代码创建会话-

const stripe = require('stripe')('key');
const session = await stripe.checkout.sessions.create({
        payment_method_types: ['card'],
        line_items: [
          {
            price_data: {
              currency: 'usd',
              product_data: {
                name: 'abs',
                images: ['url'],
              },
              unit_amount: 100,
            },
            quantity: 1,
          },
        ],
        mode: 'payment',
        success_url: `${YOUR_DOMAIN}?success=true&session_id={CHECKOUT_SESSION_ID}`,
        cancel_url: `${YOUR_DOMAIN}?back=true&order_id=${req.clientReferenceId}`,
        metadata: req.metadata,
        client_reference_id: req.clientReferenceId,
        customer_email: req.customerEmail,
        billing_address_collection: 'required',
      });

我无法在测试文件中导入 stripe，因为它需要 API 密钥。这个怎么做？PS-我尝试按照这个 - Jest 来嘲笑 Stripe，但它对我不起作用。

Answer 1

stripe导出为函数，当你想模拟它时，你可以使用jest.doMockhelper。

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想象一下你有一个像这样的index.js：

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const stripe = require('stripe')('key'); // You use require('stripe') as a function\n\nexports.CreateSession = async (req) => {\n  const session = await stripe.checkout.sessions.create({\n    // information to create session\n  });\n  return session;\n}\n\n

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然后，测试文件将是这样的：

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describe('Create session', () => {\n  beforeEach(() => {\n    jest.resetModules(); // importance line\n  });\n\n  it('creates the session', async () => {\n    const req = {\n      unitAmount: 100,\n      imageUrl: '',\n      metadata: {\n        userId: '1'\n      }\n    };\n\n    jest.doMock('stripe', () => {\n      // instead of mocking return an object, let\xe2\x80\x99s return a function\n      return jest.fn(() => ({ // when the function be called, it return an object like this\n        checkout: {\n          sessions: {\n            create: jest.fn(() => Promise.resolve({\n              sessionId: '123' // sessionId instead of id , right?\n            })),\n          },\n        },\n      }));\n    });\n\n    const { CreateSession } = require('./index'); // import function what you need to test\n    const resp = await CreateSession(req); // execute with a parameter\n    expect(resp.sessionId).toBe('123');\n  });\n});\n

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