if got, exp := VersionName(0x12a), "0x012A"; got != exp {
		t.Errorf("unexpected fallback VersionName: got %q, expected %q", got, exp)
	}
}

// http2isBadCipher is copied from net/http.
// TODO: if it ends up exposed somewhere, use that instead.
func http2isBadCipher(cipher uint16) bool {
	switch cipher {
	case TLS_RSA_WITH_RC4_128_SHA,
		TLS_RSA_WITH_3DES_EDE_CBC_SHA,
		TLS_RSA_WITH_AES_128_CBC_SHA,