axios Jest Mock未按预期工作，引发错误

fzwojiic 于 2022-12-29 发布在 iOS

关注(0)|答案(1)|浏览(211)

const axios = "axios";

jest.mock(axios);

axios.get.mockImplementation((url) => {
    if(url === process.env.ENHANCED_CLAIM_STATUS_276_DETAILS){
        return Promise.resolve({ status: 200, data: claim_response_276 });
    }
    if(url === process.env.ENHANCED_VALUE_ADDS_277_DETAILS){
        return Promise.resolve({ status: 200, data: claim_response_277 });
    }
});

我尝试模拟API响应，但它抛出此错误：

**TypeError: Cannot read properties of undefined (reading 'mockImplementation')**

axios

来源：https://stackoverflow.com/questions/74929332/jest-mock-nor-working-as-expected-throws-an-error

1条答案

按热度按时间

zpf6vheq1#

moduleName参数应为字符串。请参见API文档jest.mock（模块名称、工厂、选项）
工作示例：

import axios from "axios";

jest.mock('axios');

describe('74929332', () => {
  test('should pass', async () => {
    axios.get.mockImplementation((url) => {
      return Promise.resolve({ status: 200, data: 'claim_response_276' });
    });
    const result = await axios.get('http://localhost:3000/api')
    expect(result).toEqual({ status: 200, data: 'claim_response_276' })
  })
});

试验结果：

PASS  stackoverflow/74929332/index.test.js (14.419 s)
  74929332
    ✓ should pass (3 ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        15.559 s

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axios Jest Mock未按预期工作，引发错误

1条答案

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