github.com/daeglee/go-ethereum@v0.0.0-20190504220456-cad3e8d18e9b/contracts/ens/ens_test.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package ens
    18  
    19  import (
    20  	"math/big"
    21  	"testing"
    22  
    23  	"github.com/ethereum/go-ethereum/accounts/abi/bind"
    24  	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
    25  	"github.com/ethereum/go-ethereum/common"
    26  	"github.com/ethereum/go-ethereum/contracts/ens/contract"
    27  	"github.com/ethereum/go-ethereum/contracts/ens/fallback_contract"
    28  	"github.com/ethereum/go-ethereum/core"
    29  	"github.com/ethereum/go-ethereum/crypto"
    30  )
    31  
    32  var (
    33  	key, _       = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    34  	name         = "my name on ENS"
    35  	hash         = crypto.Keccak256Hash([]byte("my content"))
    36  	fallbackHash = crypto.Keccak256Hash([]byte("my content hash"))
    37  	addr         = crypto.PubkeyToAddress(key.PublicKey)
    38  	testAddr     = common.HexToAddress("0x1234123412341234123412341234123412341234")
    39  )
    40  
    41  func TestENS(t *testing.T) {
    42  	contractBackend := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}}, 10000000)
    43  	transactOpts := bind.NewKeyedTransactor(key)
    44  
    45  	ensAddr, ens, err := DeployENS(transactOpts, contractBackend)
    46  	if err != nil {
    47  		t.Fatalf("can't deploy root registry: %v", err)
    48  	}
    49  	contractBackend.Commit()
    50  
    51  	// Set ourself as the owner of the name.
    52  	if _, err := ens.Register(name); err != nil {
    53  		t.Fatalf("can't register: %v", err)
    54  	}
    55  	contractBackend.Commit()
    56  
    57  	// Deploy a resolver and make it responsible for the name.
    58  	resolverAddr, _, _, err := contract.DeployPublicResolver(transactOpts, contractBackend, ensAddr)
    59  	if err != nil {
    60  		t.Fatalf("can't deploy resolver: %v", err)
    61  	}
    62  
    63  	if _, err := ens.SetResolver(EnsNode(name), resolverAddr); err != nil {
    64  		t.Fatalf("can't set resolver: %v", err)
    65  	}
    66  	contractBackend.Commit()
    67  
    68  	// Set the content hash for the name.
    69  	cid, err := EncodeSwarmHash(hash)
    70  	if err != nil {
    71  		t.Fatal(err)
    72  	}
    73  	if _, err = ens.SetContentHash(name, cid); err != nil {
    74  		t.Fatalf("can't set content hash: %v", err)
    75  	}
    76  	contractBackend.Commit()
    77  
    78  	// Try to resolve the name.
    79  	resolvedHash, err := ens.Resolve(name)
    80  	if err != nil {
    81  		t.Fatalf("expected no error, got %v", err)
    82  	}
    83  	if resolvedHash.Hex() != hash.Hex() {
    84  		t.Fatalf("resolve error, expected %v, got %v", hash.Hex(), resolvedHash.Hex())
    85  	}
    86  
    87  	// set the address for the name
    88  	if _, err = ens.SetAddr(name, testAddr); err != nil {
    89  		t.Fatalf("can't set address: %v", err)
    90  	}
    91  	contractBackend.Commit()
    92  
    93  	// Try to resolve the name to an address
    94  	recoveredAddr, err := ens.Addr(name)
    95  	if err != nil {
    96  		t.Fatalf("expected no error, got %v", err)
    97  	}
    98  	if testAddr.Hex() != recoveredAddr.Hex() {
    99  		t.Fatalf("resolve error, expected %v, got %v", testAddr.Hex(), recoveredAddr.Hex())
   100  	}
   101  
   102  	// deploy the fallback contract and see that the fallback mechanism works
   103  	fallbackResolverAddr, _, _, err := fallback_contract.DeployPublicResolver(transactOpts, contractBackend, ensAddr)
   104  	if err != nil {
   105  		t.Fatalf("can't deploy resolver: %v", err)
   106  	}
   107  	if _, err := ens.SetResolver(EnsNode(name), fallbackResolverAddr); err != nil {
   108  		t.Fatalf("can't set resolver: %v", err)
   109  	}
   110  	contractBackend.Commit()
   111  
   112  	// Set the content hash for the name.
   113  	if _, err = ens.SetContentHash(name, fallbackHash.Bytes()); err != nil {
   114  		t.Fatalf("can't set content hash: %v", err)
   115  	}
   116  	contractBackend.Commit()
   117  
   118  	// Try to resolve the name.
   119  	fallbackResolvedHash, err := ens.Resolve(name)
   120  	if err != nil {
   121  		t.Fatalf("expected no error, got %v", err)
   122  	}
   123  	if fallbackResolvedHash.Hex() != fallbackHash.Hex() {
   124  		t.Fatalf("resolve error, expected %v, got %v", hash.Hex(), resolvedHash.Hex())
   125  	}
   126  }