github.com/neatlab/neatio@v1.7.3-0.20220425043230-d903e92fcc75/neatptc/handler_test.go

package neatptc

import (
	"math"
	"math/big"
	"math/rand"
	"testing"
	"time"

	"github.com/neatlab/neatio/chain/consensus"
	"github.com/neatlab/neatio/chain/core"
	"github.com/neatlab/neatio/chain/core/rawdb"
	"github.com/neatlab/neatio/chain/core/state"
	"github.com/neatlab/neatio/chain/core/types"
	"github.com/neatlab/neatio/neatptc/downloader"
	"github.com/neatlab/neatio/network/p2p"
	"github.com/neatlab/neatio/params"
	"github.com/neatlab/neatio/utilities/common"
	"github.com/neatlab/neatio/utilities/crypto"
)

func TestProtocolCompatibility(t *testing.T) {

	tests := []struct {
		version    uint
		mode       downloader.SyncMode
		compatible bool
	}{
		{61, downloader.FullSync, true}, {62, downloader.FullSync, true}, {63, downloader.FullSync, true},
		{61, downloader.FastSync, false}, {62, downloader.FastSync, false}, {63, downloader.FastSync, true},
	}

	backup := consensus.EthProtocol.Versions
	defer func() { consensus.EthProtocol.Versions = backup }()

	for i, tt := range tests {
		consensus.EthProtocol.Versions = []uint{tt.version}

		pm, _, err := newTestProtocolManager(tt.mode, 0, nil, nil)
		if pm != nil {
			defer pm.Stop()
		}
		if (err == nil && !tt.compatible) || (err != nil && tt.compatible) {
			t.Errorf("test %d: compatibility mismatch: have error %v, want compatibility %v", i, err, tt.compatible)
		}
	}
}

func TestGetBlockHeaders62(t *testing.T) { testGetBlockHeaders(t, 62) }
func TestGetBlockHeaders63(t *testing.T) { testGetBlockHeaders(t, 63) }

func testGetBlockHeaders(t *testing.T, protocol int) {
	pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxHashFetch+15, nil, nil)
	peer, _ := newTestPeer("peer", protocol, pm, true)
	defer peer.close()

	var unknown common.Hash
	for i := range unknown {
		unknown[i] = byte(i)
	}

	limit := uint64(downloader.MaxHeaderFetch)
	tests := []struct {
		query  *getBlockHeadersData
		expect []common.Hash
	}{

		{
			&getBlockHeadersData{Origin: hashOrNumber{Hash: pm.blockchain.GetBlockByNumber(limit / 2).Hash()}, Amount: 1},
			[]common.Hash{pm.blockchain.GetBlockByNumber(limit / 2).Hash()},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 1},
			[]common.Hash{pm.blockchain.GetBlockByNumber(limit / 2).Hash()},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(limit / 2).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 + 1).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 + 2).Hash(),
			},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3, Reverse: true},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(limit / 2).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 - 1).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 - 2).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(limit / 2).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 + 4).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 + 8).Hash(),
			},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3, Reverse: true},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(limit / 2).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 - 4).Hash(),
				pm.blockchain.GetBlockByNumber(limit/2 - 8).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: 0}, Amount: 1},
			[]common.Hash{pm.blockchain.GetBlockByNumber(0).Hash()},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: pm.blockchain.CurrentBlock().NumberU64()}, Amount: 1},
			[]common.Hash{pm.blockchain.CurrentBlock().Hash()},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: pm.blockchain.CurrentBlock().NumberU64() - 1}, Amount: limit + 10, Reverse: true},
			pm.blockchain.GetBlockHashesFromHash(pm.blockchain.CurrentBlock().Hash(), limit),
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: pm.blockchain.CurrentBlock().NumberU64() - 4}, Skip: 3, Amount: 3},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(pm.blockchain.CurrentBlock().NumberU64() - 4).Hash(),
				pm.blockchain.GetBlockByNumber(pm.blockchain.CurrentBlock().NumberU64()).Hash(),
			},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 3, Amount: 3, Reverse: true},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(4).Hash(),
				pm.blockchain.GetBlockByNumber(0).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: pm.blockchain.CurrentBlock().NumberU64() - 4}, Skip: 2, Amount: 3},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(pm.blockchain.CurrentBlock().NumberU64() - 4).Hash(),
				pm.blockchain.GetBlockByNumber(pm.blockchain.CurrentBlock().NumberU64() - 1).Hash(),
			},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 2, Amount: 3, Reverse: true},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(4).Hash(),
				pm.blockchain.GetBlockByNumber(1).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Number: 2}, Amount: 5, Reverse: true},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(2).Hash(),
				pm.blockchain.GetBlockByNumber(1).Hash(),
				pm.blockchain.GetBlockByNumber(0).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Hash: pm.blockchain.GetBlockByNumber(3).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64 - 1},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(3).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Hash: pm.blockchain.GetBlockByNumber(1).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64},
			[]common.Hash{
				pm.blockchain.GetBlockByNumber(1).Hash(),
			},
		},

		{
			&getBlockHeadersData{Origin: hashOrNumber{Hash: unknown}, Amount: 1},
			[]common.Hash{},
		}, {
			&getBlockHeadersData{Origin: hashOrNumber{Number: pm.blockchain.CurrentBlock().NumberU64() + 1}, Amount: 1},
			[]common.Hash{},
		},
	}

	for i, tt := range tests {

		headers := []*types.Header{}
		for _, hash := range tt.expect {
			headers = append(headers, pm.blockchain.GetBlockByHash(hash).Header())
		}

		p2p.Send(peer.app, 0x03, tt.query)
		if err := p2p.ExpectMsg(peer.app, 0x04, headers); err != nil {
			t.Errorf("test %d: headers mismatch: %v", i, err)
		}

		if tt.query.Origin.Hash == (common.Hash{}) {
			if origin := pm.blockchain.GetBlockByNumber(tt.query.Origin.Number); origin != nil {
				tt.query.Origin.Hash, tt.query.Origin.Number = origin.Hash(), 0

				p2p.Send(peer.app, 0x03, tt.query)
				if err := p2p.ExpectMsg(peer.app, 0x04, headers); err != nil {
					t.Errorf("test %d: headers mismatch: %v", i, err)
				}
			}
		}
	}
}

func TestGetBlockBodies62(t *testing.T) { testGetBlockBodies(t, 62) }
func TestGetBlockBodies63(t *testing.T) { testGetBlockBodies(t, 63) }

func testGetBlockBodies(t *testing.T, protocol int) {
	pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, downloader.MaxBlockFetch+15, nil, nil)
	peer, _ := newTestPeer("peer", protocol, pm, true)
	defer peer.close()

	limit := downloader.MaxBlockFetch
	tests := []struct {
		random    int
		explicit  []common.Hash
		available []bool
		expected  int
	}{
		{1, nil, nil, 1},
		{10, nil, nil, 10},
		{limit, nil, nil, limit},
		{limit + 1, nil, nil, limit},
		{0, []common.Hash{pm.blockchain.Genesis().Hash()}, []bool{true}, 1},
		{0, []common.Hash{pm.blockchain.CurrentBlock().Hash()}, []bool{true}, 1},
		{0, []common.Hash{{}}, []bool{false}, 0},

		{0, []common.Hash{
			{},
			pm.blockchain.GetBlockByNumber(1).Hash(),
			{},
			pm.blockchain.GetBlockByNumber(10).Hash(),
			{},
			pm.blockchain.GetBlockByNumber(100).Hash(),
			{},
		}, []bool{false, true, false, true, false, true, false}, 3},
	}

	for i, tt := range tests {

		hashes, seen := []common.Hash{}, make(map[int64]bool)
		bodies := []*blockBody{}

		for j := 0; j < tt.random; j++ {
			for {
				num := rand.Int63n(int64(pm.blockchain.CurrentBlock().NumberU64()))
				if !seen[num] {
					seen[num] = true

					block := pm.blockchain.GetBlockByNumber(uint64(num))
					hashes = append(hashes, block.Hash())
					if len(bodies) < tt.expected {
						bodies = append(bodies, &blockBody{Transactions: block.Transactions(), Uncles: block.Uncles()})
					}
					break
				}
			}
		}
		for j, hash := range tt.explicit {
			hashes = append(hashes, hash)
			if tt.available[j] && len(bodies) < tt.expected {
				block := pm.blockchain.GetBlockByHash(hash)
				bodies = append(bodies, &blockBody{Transactions: block.Transactions(), Uncles: block.Uncles()})
			}
		}

		p2p.Send(peer.app, 0x05, hashes)
		if err := p2p.ExpectMsg(peer.app, 0x06, bodies); err != nil {
			t.Errorf("test %d: bodies mismatch: %v", i, err)
		}
	}
}

func TestGetNodeData63(t *testing.T) { testGetNodeData(t, 63) }

func testGetNodeData(t *testing.T, protocol int) {

	acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
	acc2Key, _ := crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
	acc1Addr := crypto.PubkeyToAddress(acc1Key.PublicKey)
	acc2Addr := crypto.PubkeyToAddress(acc2Key.PublicKey)

	signer := types.HomesteadSigner{}

	generator := func(i int, block *core.BlockGen) {
		switch i {
		case 0:

			tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, testBankKey)
			block.AddTx(tx)
		case 1:

			tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, testBankKey)
			tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, acc1Key)
			block.AddTx(tx1)
			block.AddTx(tx2)
		case 2:

			block.SetCoinbase(acc2Addr)
			block.SetExtra([]byte("yeehaw"))
		case 3:

			b2 := block.PrevBlock(1).Header()
			b2.Extra = []byte("foo")
			block.AddUncle(b2)
			b3 := block.PrevBlock(2).Header()
			b3.Extra = []byte("foo")
			block.AddUncle(b3)
		}
	}

	pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
	peer, _ := newTestPeer("peer", protocol, pm, true)
	defer peer.close()

	hashes := []common.Hash{}

	p2p.Send(peer.app, 0x0d, hashes)
	msg, err := peer.app.ReadMsg()
	if err != nil {
		t.Fatalf("failed to read node data response: %v", err)
	}
	if msg.Code != 0x0e {
		t.Fatalf("response packet code mismatch: have %x, want %x", msg.Code, 0x0c)
	}
	var data [][]byte
	if err := msg.Decode(&data); err != nil {
		t.Fatalf("failed to decode response node data: %v", err)
	}

	for i, want := range hashes {
		if hash := crypto.Keccak256Hash(data[i]); hash != want {
			t.Errorf("data hash mismatch: have %x, want %x", hash, want)
		}
	}
	statedb := rawdb.NewMemoryDatabase()
	for i := 0; i < len(data); i++ {
		statedb.Put(hashes[i].Bytes(), data[i])
	}
	accounts := []common.Address{testBank, acc1Addr, acc2Addr}
	for i := uint64(0); i <= pm.blockchain.CurrentBlock().NumberU64(); i++ {
		trie, _ := state.New(pm.blockchain.GetBlockByNumber(i).Root(), state.NewDatabase(statedb))

		for j, acc := range accounts {
			state, _ := pm.blockchain.State()
			bw := state.GetBalance(acc)
			bh := trie.GetBalance(acc)

			if (bw != nil && bh == nil) || (bw == nil && bh != nil) {
				t.Errorf("test %d, account %d: balance mismatch: have %v, want %v", i, j, bh, bw)
			}
			if bw != nil && bh != nil && bw.Cmp(bw) != 0 {
				t.Errorf("test %d, account %d: balance mismatch: have %v, want %v", i, j, bh, bw)
			}
		}
	}
}

func TestGetReceipt63(t *testing.T) { testGetReceipt(t, 63) }

func testGetReceipt(t *testing.T, protocol int) {

	acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
	acc2Key, _ := crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
	acc1Addr := crypto.PubkeyToAddress(acc1Key.PublicKey)
	acc2Addr := crypto.PubkeyToAddress(acc2Key.PublicKey)

	signer := types.HomesteadSigner{}

	generator := func(i int, block *core.BlockGen) {
		switch i {
		case 0:

			tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, testBankKey)
			block.AddTx(tx)
		case 1:

			tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBank), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, testBankKey)
			tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, acc1Key)
			block.AddTx(tx1)
			block.AddTx(tx2)
		case 2:

			block.SetCoinbase(acc2Addr)
			block.SetExtra([]byte("yeehaw"))
		case 3:

			b2 := block.PrevBlock(1).Header()
			b2.Extra = []byte("foo")
			block.AddUncle(b2)
			b3 := block.PrevBlock(2).Header()
			b3.Extra = []byte("foo")
			block.AddUncle(b3)
		}
	}

	pm, _ := newTestProtocolManagerMust(t, downloader.FullSync, 4, generator, nil)
	peer, _ := newTestPeer("peer", protocol, pm, true)
	defer peer.close()

	hashes, receipts := []common.Hash{}, []types.Receipts{}
	for i := uint64(0); i <= pm.blockchain.CurrentBlock().NumberU64(); i++ {
		block := pm.blockchain.GetBlockByNumber(i)

		hashes = append(hashes, block.Hash())
		receipts = append(receipts, pm.blockchain.GetReceiptsByHash(block.Hash()))
	}

	p2p.Send(peer.app, 0x0f, hashes)
	if err := p2p.ExpectMsg(peer.app, 0x10, receipts); err != nil {
		t.Errorf("receipts mismatch: %v", err)
	}
}

func TestDAOChallengeNoVsNo(t *testing.T)       { testDAOChallenge(t, false, false, false) }
func TestDAOChallengeNoVsPro(t *testing.T)      { testDAOChallenge(t, false, true, false) }
func TestDAOChallengeProVsNo(t *testing.T)      { testDAOChallenge(t, true, false, false) }
func TestDAOChallengeProVsPro(t *testing.T)     { testDAOChallenge(t, true, true, false) }
func TestDAOChallengeNoVsTimeout(t *testing.T)  { testDAOChallenge(t, false, false, true) }
func TestDAOChallengeProVsTimeout(t *testing.T) { testDAOChallenge(t, true, true, true) }

func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool) {

	if timeout {
		defer func(old time.Duration) { daoChallengeTimeout = old }(daoChallengeTimeout)
		daoChallengeTimeout = 500 * time.Millisecond
	}

}