Why not POST

TestWhyNotPost.go

func TestWhyNotPost(t *testing.T) {
    testServerPort := 31337
    testServerAddr := fmt.Sprintf("127.0.0.1:%d", testServerPort)
    testServerRootURL := fmt.Sprintf("http://%s/", testServerAddr)

    srv := &Server{}
    listener, err := net.ListenTCP("tcp4", &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: testServerPort})
    if err != nil {
        panic(err)
    }

    ch := make(chan *Request)

    HandleFunc("/login", func(w ResponseWriter, r *Request) {
        ch <- r
    })

    go func() {
        srv.Serve(listener)
    }()

    go func() {
        values := url.Values{}
        values.Add("hoge", "aaa")

        client := Client{}
        // unnecessary '/'
        client.PostForm(testServerRootURL+"/login", values)
    }()

    var req *Request
    req = <-ch
    if req.Method != "POST" {
        t.Errorf("Method = %s; want POST", req.Method)
    }
}

golang/go#18570