Move Chrome tests and test server setup to separate packages

integrationtests/tools/testserver/server.go

@@ -0,0 +1,68 @@
+package testserver
+
+import (
+	"net"
+	"net/http"
+	"strconv"
+
+	"github.com/lucas-clemente/quic-go/h2quic"
+	"github.com/lucas-clemente/quic-go/internal/testdata"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var (
+	server *h2quic.Server
+	port   string
+)
+
+func init() {
+	http.HandleFunc("/prdata", func(w http.ResponseWriter, r *http.Request) {
+		defer GinkgoRecover()
+		sl := r.URL.Query().Get("len")
+		l, err := strconv.Atoi(sl)
+		Expect(err).NotTo(HaveOccurred())
+		data := GeneratePRData(l)
+		_, err = w.Write(data)
+		Expect(err).NotTo(HaveOccurred())
+	})
+}
+
+// See https://en.wikipedia.org/wiki/Lehmer_random_number_generator
+func GeneratePRData(l int) []byte {
+	res := make([]byte, l)
+	seed := uint64(1)
+	for i := 0; i < l; i++ {
+		seed = seed * 48271 % 2147483647
+		res[i] = byte(seed)
+	}
+	return res
+}
+
+func StartQuicServer() {
+	server = &h2quic.Server{
+		Server: &http.Server{
+			TLSConfig: testdata.GetTLSConfig(),
+		},
+	}
+
+	addr, err := net.ResolveUDPAddr("udp", "0.0.0.0:0")
+	Expect(err).NotTo(HaveOccurred())
+	conn, err := net.ListenUDP("udp", addr)
+	Expect(err).NotTo(HaveOccurred())
+	port = strconv.Itoa(conn.LocalAddr().(*net.UDPAddr).Port)
+
+	go func() {
+		defer GinkgoRecover()
+		server.Serve(conn)
+	}()
+}
+
+func StopQuicServer() {
+	Expect(server.Close()).NotTo(HaveOccurred())
+}
+
+func Port() string {
+	return port
+}