n = Copy(val, ValueOf("hello"))
		if expecting := []byte("hello___"); n != 5 || !bytes.Equal(s, expecting) {
			t.Errorf("got n = %d, s = %s, expecting n = 5, s = %s", n, s, expecting)
		}

		n = Copy(val, ValueOf("helloworld"))
		if expecting := []byte("hellowor"); n != 8 || !bytes.Equal(s, expecting) {
			t.Errorf("got n = %d, s = %s, expecting n = 8, s = %s", n, s, expecting)
		}
	})
	t.Run("Array", func(t *testing.T) {

	req := reqBytes(`PUT /readbody HTTP/1.1
User-Agent: PycURL/7.22.0
Host: 127.0.0.1:9000
Accept: */*
Expect: 100-continue
Content-Length: 10

HelloWorld

`)
	var buf bytes.Buffer
	conn := &rwTestConn{
		Reader: bytes.NewReader(req),
		Writer: &buf,
		closec: make(chan bool, 1),
	}
	ln := &oneConnListener{conn: conn}