Method greet

test/clienttester.go:50–70

greet() performs the necessary steps for http2 connection establishment on the server side.

()

// greet() performs the necessary steps for http2 connection establishment on
// the server side.
func (ct *clientTester) greet() {
	ct.wantClientPreface()
	ct.wantSettingsFrame()
	ct.writeSettingsFrame()
	ct.writeSettingsAck()

	for {
		f, err := ct.fr.ReadFrame()
		if err != nil {
			ct.t.Errorf("error reading frame from client side: %v", err)
		}
		switch f := f.(type) {
		case *http2.SettingsFrame:
			if f.IsAck() { // HTTP/2 handshake completed.
				return
			}
		default:
			ct.t.Errorf("during greet, unexpected frame type %T", f)
		}
	}
}

func (ct *clientTester) wantClientPreface() {
	preface := make([]byte, len(clientPreface))