英文:
How do I mock a simple POST body when creating a test request
问题
我正在尝试为一个简单的表单处理程序编写单元测试。我找不到任何关于如何创建表单主体的信息，以便它能够被我的处理程序中的r.ParseForm()捕获。我可以自己查看和读取主体，但是在我的测试中，当它在我的应用程序中按预期工作时，r.Form总是url.Values{}。
代码可以简化为以下示例：
package main
import (
"fmt"
"strings"
"net/http"
"net/http/httptest"
)
func main() {
w := httptest.NewRecorder()
r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader("a=1&b=2"))
handler(w, r)
}
func handler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
fmt.Printf("form: %#v\n", r.Form)
}
当我期望它打印：
form: url.Values{"a": []string{"1"}, "b": []string{"2"}}
我应该如何将主体传递给httptest.NewRequest，以便它被r.ParseForm捕获？
英文:
I'm trying to write a unit test for a simple form handler. I cannot find any info on how to create the form body in a way that it is being picked up by r.ParseForm() in my handler. I can see and read from the body myself, but r.Form in my test will always be url.Values{} when it works as expected in my application.
The code boils down to the following example:
package main
import (
"fmt"
"strings"
"net/http"
"net/http/httptest"
)
func main() {
w := httptest.NewRecorder()
r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader("a=1&b=2"))
handler(w, r)
}
func handler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
fmt.Printf("form: %#v\n", r.Form)
}
that prints
form: url.Values{}
when I'd expect it to print:
form: url.Values{"a": []string{"1"}, "b": []string{"2"}}
How do I actually pass the body to httptest.NewRequest so that it gets picked up by r.ParseForm?
答案1
得分: 11
你只需要在请求中设置Content-Type头部。
package main
import (
"fmt"
"strings"
"net/http"
"net/http/httptest"
)
func main() {
w := httptest.NewRecorder()
r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader("a=1&b=2"))
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
handler(w, r)
}
func handler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
fmt.Printf("form: %#v\n", r.Form)
}
链接：https://play.golang.org/p/KLhNHbbNWl
英文:
You just need to set the Content-Type header on the request.
package main
import (
"fmt"
"strings"
"net/http"
"net/http/httptest"
)
func main() {
w := httptest.NewRecorder()
r := httptest.NewRequest(http.MethodPost, "/", strings.NewReader("a=1&b=2"))
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
handler(w, r)
}
func handler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
fmt.Printf("form: %#v\n", r.Form)
}
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