空手道 API 测试中不存在 iRequired 请求部分“文件”

当我尝试使用以下功能时，我收到必需的请求部分“文件”不存在 功能：验证 API 是否正确返回产品

Background:
* url 'http://localhost:8080'

Scenario: Products are returned on post

Given path 'upload'
And multipart field files = read('test.txt')    
When method post
Then status 200
And match $ == {error: false, bytesUploaded:'#notnull'}

请为文件上传 api 测试建议正确的解决方案或替代方案

请参阅multipart file文档：https://github.com/intuit/karate#multipart-file

Given path 'upload'
And multipart file files = { read: 'test.txt', filename: 'test.txt', contentType: 'text/plain' }
When method post
Then status 200
And match $ == { error: false, bytesUploaded: '#notnull' }