quic: fix flaky holepunching test
@@ -541,6 +541,10 @@ func TestHolePunching(t *testing.T) {
require.NoError(t, err)
connChan <- conn
}()
+ // Make sure the server role (the dial on t2) has progressed far enough.
+ // If it hasn't created the hole punch map entry, the connection will be accepted as a regular connection,
+ // which would make this test fail.
+ time.Sleep(25 * time.Millisecond)
conn1, err := t1.Dial(
network.WithSimultaneousConnect(context.Background(), true, ""),
ln2.Multiaddr(),
