在jest中模拟yaml文件

npm install --save-dev jest yaml

name: John Doe
age: 30
email: johndoe@example.com

const fs = require('fs');
const yaml = require('yaml');

function readYamlFile(filePath) {
  const fileContent = fs.readFileSync(filePath, 'utf8');
  return yaml.parse(fileContent);
}

module.exports = readYamlFile;

const readYamlFile = require('./example');

jest.mock('fs');
jest.mock('yaml');

describe('readYamlFile', () => {
  test('should read and parse yaml file correctly', () => {
    const mockFileContent = `
      name: John Doe
      age: 30
      email: johndoe@example.com
    `;
    const mockParsedYaml = {
      name: 'John Doe',
      age: 30,
      email: 'johndoe@example.com',
    };

    require('fs').__setMockFileContent(mockFileContent);
    require('yaml').__setMockParsedYaml(mockParsedYaml);

    const result = readYamlFile('example.yaml');

    expect(result).toEqual(mockParsedYaml);
    expect(require('fs').readFileSync).toHaveBeenCalledWith('example.yaml', 'utf8');
    expect(require('yaml').parse).toHaveBeenCalledWith(mockFileContent);
  });
});