t.Fatalf("build failed: %v\n%s", err, out)
	}

	fi, err := os.Stat(exe)
	if err != nil {
		t.Fatalf("failed to stat output file: %v", err)
	}

	// The test program is not much different from a helloworld, which is
	// typically a little over 1 MB. We allow 5 MB. If the bad stmp is live,
	// it will be over 10 MB.
	const want = 5 << 20
	if got := fi.Size(); got > want {

	}
}

// Issue 16158. Decoder.unmarshalAttr ignores the return value of copyValue.
func TestIssue16158(t *testing.T) {
	const data = `<foo b="HELLOWORLD"></foo>`
	err := Unmarshal([]byte(data), &struct {
		B byte `xml:"b,attr,omitempty"`
	}{})
	if err == nil {
		t.Errorf("Unmarshal: expected error, got nil")
	}
}

		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}