migrate the transport tests away from Ginkgo (#4783)

* migrate the transport tests away from Ginkgo

* simplify mock net.PacketConn implementation

quic_suite_test.go

@@ -4,13 +4,18 @@ import (
 	"bytes"
 	"io"
 	"log"
+	"net"
+	"os"
 	"runtime/pprof"
+	"strconv"
 	"strings"
 	"sync"
 	"testing"
+	"time"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
+	"github.com/stretchr/testify/require"
 	"go.uber.org/mock/gomock"
 )
 
@@ -32,6 +37,28 @@ var _ = BeforeSuite(func() {
 	log.SetOutput(io.Discard)
 })
 
+// in the tests for the stream deadlines we set a deadline
+// and wait to make an assertion when Read / Write was unblocked
+// on the CIs, the timing is a lot less precise, so scale every duration by this factor
+func scaleDuration(t time.Duration) time.Duration {
+	scaleFactor := 1
+	if f, err := strconv.Atoi(os.Getenv("TIMESCALE_FACTOR")); err == nil { // parsing "" errors, so this works fine if the env is not set
+		scaleFactor = f
+	}
+	if scaleFactor == 0 {
+		panic("TIMESCALE_FACTOR is 0")
+	}
+	return time.Duration(scaleFactor) * t
+}
+
+func newUPDConnLocalhost(t testing.TB) *net.UDPConn {
+	t.Helper()
+	conn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 0})
+	require.NoError(t, err)
+	t.Cleanup(func() { conn.Close() })
+	return conn
+}
+
 func areServersRunning() bool {
 	var b bytes.Buffer
 	pprof.Lookup("goroutine").WriteTo(&b, 1)