func (d *countingDialer) Read() (total, live int64) {
	d.mu.Lock()
	defer d.mu.Unlock()
	return d.total, d.live
}

func TestTransportPersistConnLeakNeverIdle(t *testing.T) {
	run(t, testTransportPersistConnLeakNeverIdle, []testMode{http1Mode})
}
func testTransportPersistConnLeakNeverIdle(t *testing.T, mode testMode) {
	ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {