如何使用Mocha/Chai检查文件类型？

npm install mocha chai file-type

const fs = require('fs');
const fileType = require('file-type');
const { expect } = require('chai');

describe('File Type', () => {
  it('should correctly detect the file type', () => {
    const filePath = 'path/to/your/file.ext';
    const fileBuffer = fs.readFileSync(filePath);
    const detectedType = fileType(fileBuffer);

    expect(detectedType).to.exist;
    expect(detectedType.mime).to.equal('expected/mime-type');
  });
});

{
  "scripts": {
    "test": "mocha"
  }
}