http: add a (disabled) test for TLS handshake timeouts

It's currently broken and disabled, pending a fix
for Issue 2281.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5092045

src/pkg/http/serve_test.go

@@ -535,6 +535,30 @@ func TestHeadResponses(t *testing.T) {
 	}
 }
 
+func TestTLSHandshakeTimeout(t *testing.T) {
+	if true {
+		t.Logf("Skipping broken test; issue 2281")
+		return
+	}
+	ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
+	ts.Config.ReadTimeout = 250e6
+	ts.StartTLS()
+	defer ts.Close()
+	conn, err := net.Dial("tcp", ts.Listener.Addr().String())
+	if err != nil {
+		t.Fatalf("Dial: %v", err)
+	}
+	defer conn.Close()
+	timer := time.AfterFunc(10e9, func() { t.Fatalf("Timeout") })
+	defer timer.Stop()
+
+	var buf [1]byte
+	n, err := conn.Read(buf[:])
+	if err == nil || n != 0 {
+		t.Errorf("Read = %d, %v; want an error and no bytes", n, err)
+	}
+}
+
 func TestTLSServer(t *testing.T) {
 	ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
 		if r.TLS != nil {