如何测试以文件夹为输入的HTTP函数?

时间:2019-04-15 08:32:02

标签: unit-testing go testify

我有一个HTTP处理程序功能(POST),该功能允许用户从Web浏览器应用程序上载文件夹。文件夹从JavaScript代码作为文件夹中的文件数组传递,并且在后端(Go API)上,它被接受为[]*multipart.FileHeader。我正在为此功能编写Go单元测试。如何传递文件夹作为测试功能的输入?我需要帮助以正确的格式创建httpRequest

我尝试对FileHeader数组使用/设置值,但是不允许导入某些属性。因此,必须有一种我不知道的测试此处理程序的方法。

用于文件夹上传的处理函数:

func FolderUpload(w http.ResponseWriter, r *http.Request, p httprouter.Params) { 
// SOME LOGIC

files := r.MultipartForm.File["multiplefiles"] // files is of the type []*multipart.FileHeader

// SOME LOGIC TO PARSE THE FILE NAMES TO RECREATE THE SAME TREE STRUCTURE ON THE SERVER-SIDE AND STORE THEM AS A FOLDER

同一处理程序的单元测试功能:

func TestFolderUpload(t *testing.T) {
//     FolderPreCondition()
     request, err := http.NewRequest("POST", uri, body) //Q: HOW TO CREATE THE BODY ACCEPTABLE BY THE ABOVE HANDLER FUNC?
//     SOME ASSERTION LOGIC
}

1 个答案:

答案 0 :(得分:2)

您应编写文件以请求:

func newFileUploadRequest(url string, paramName, path string) (*http.Request, error) {
file, err := os.Open(path)

if err != nil {
    return nil, err
}

defer file.Close()

body := new(bytes.Buffer)

writer := multipart.NewWriter(body)

part, err := writer.CreateFormFile(paramName, filepath.Base(path))

if err != nil {
    return nil, err
}

_, err = io.Copy(part, file)

if err != nil {
    return nil, err
}

err = writer.Close()
if err != nil {
    return nil, err
}
req, err := http.NewRequest("POST", url, body)

if err != nil {
    return nil, err
}

req.Header.Add("Content-Type", writer.FormDataContentType())

return req, err

}

然后使用它:

    req, err := newFileUploadRequest("http://localhost:1234/upload", "multiplefiles", path)

client := &http.Client{}

resp, err := client.Do(req)

它对我有用,希望对您有帮助