contracts/ens: Add ENS contract binding

contracts/ens/ens_test.go

@@ -0,0 +1,67 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package ens
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/crypto"
+)
+
+var (
+	key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
+	name   = "my name on ENS"
+	hash   = crypto.Sha3Hash([]byte("my content"))
+	addr   = crypto.PubkeyToAddress(key.PublicKey)
+)
+
+func TestENS(t *testing.T) {
+	contractBackend := backends.NewSimulatedBackend(core.GenesisAccount{Address: addr, Balance: big.NewInt(1000000000)})
+	transactOpts := bind.NewKeyedTransactor(key)
+	// Workaround for bug estimating gas in the call to Register
+	transactOpts.GasLimit = big.NewInt(1000000)
+
+	ens, err := DeployENS(transactOpts, contractBackend)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	contractBackend.Commit()
+
+	_, err = ens.Register(name)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	contractBackend.Commit()
+
+	_, err = ens.SetContentHash(name, hash)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	contractBackend.Commit()
+
+	vhost, err := ens.Resolve(name)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	if vhost != hash {
+		t.Fatalf("resolve error, expected %v, got %v", hash.Hex(), vhost.Hex())
+	}
+}