153 lines
3.2 KiB
Go
153 lines
3.2 KiB
Go
package les
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import (
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"math/big"
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"testing"
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"net"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/enode"
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)
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func TestFetcherULCPeerSelector(t *testing.T) {
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id1 := newNodeID(t).ID()
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id2 := newNodeID(t).ID()
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id3 := newNodeID(t).ID()
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id4 := newNodeID(t).ID()
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ftn1 := &fetcherTreeNode{
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hash: common.HexToHash("1"),
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td: big.NewInt(1),
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}
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ftn2 := &fetcherTreeNode{
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hash: common.HexToHash("2"),
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td: big.NewInt(2),
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parent: ftn1,
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}
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ftn3 := &fetcherTreeNode{
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hash: common.HexToHash("3"),
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td: big.NewInt(3),
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parent: ftn2,
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}
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lf := lightFetcher{
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pm: &ProtocolManager{
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ulc: &ulc{
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trustedKeys: map[string]struct{}{
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id1.String(): {},
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id2.String(): {},
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id3.String(): {},
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id4.String(): {},
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},
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minTrustedFraction: 70,
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},
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},
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maxConfirmedTd: ftn1.td,
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peers: map[*peer]*fetcherPeerInfo{
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{
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id: "peer1",
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Peer: p2p.NewPeer(id1, "peer1", []p2p.Cap{}),
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isTrusted: true,
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}: {
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nodeByHash: map[common.Hash]*fetcherTreeNode{
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ftn1.hash: ftn1,
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ftn2.hash: ftn2,
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},
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},
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{
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Peer: p2p.NewPeer(id2, "peer2", []p2p.Cap{}),
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id: "peer2",
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isTrusted: true,
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}: {
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nodeByHash: map[common.Hash]*fetcherTreeNode{
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ftn1.hash: ftn1,
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ftn2.hash: ftn2,
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},
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},
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{
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id: "peer3",
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Peer: p2p.NewPeer(id3, "peer3", []p2p.Cap{}),
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isTrusted: true,
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}: {
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nodeByHash: map[common.Hash]*fetcherTreeNode{
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ftn1.hash: ftn1,
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ftn2.hash: ftn2,
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ftn3.hash: ftn3,
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},
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},
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{
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id: "peer4",
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Peer: p2p.NewPeer(id4, "peer4", []p2p.Cap{}),
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isTrusted: true,
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}: {
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nodeByHash: map[common.Hash]*fetcherTreeNode{
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ftn1.hash: ftn1,
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},
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},
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},
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chain: &lightChainStub{
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tds: map[common.Hash]*big.Int{},
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headers: map[common.Hash]*types.Header{
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ftn1.hash: {},
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ftn2.hash: {},
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ftn3.hash: {},
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},
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},
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}
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bestHash, bestAmount, bestTD, sync := lf.findBestRequest()
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if bestTD == nil {
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t.Fatal("Empty result")
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}
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if bestTD.Cmp(ftn2.td) != 0 {
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t.Fatal("bad td", bestTD)
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}
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if bestHash != ftn2.hash {
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t.Fatal("bad hash", bestTD)
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}
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_, _ = bestAmount, sync
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}
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type lightChainStub struct {
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BlockChain
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tds map[common.Hash]*big.Int
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headers map[common.Hash]*types.Header
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insertHeaderChainAssertFunc func(chain []*types.Header, checkFreq int) (int, error)
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}
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func (l *lightChainStub) GetHeader(hash common.Hash, number uint64) *types.Header {
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if h, ok := l.headers[hash]; ok {
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return h
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}
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return nil
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}
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func (l *lightChainStub) LockChain() {}
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func (l *lightChainStub) UnlockChain() {}
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func (l *lightChainStub) GetTd(hash common.Hash, number uint64) *big.Int {
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if td, ok := l.tds[hash]; ok {
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return td
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}
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return nil
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}
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func (l *lightChainStub) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) {
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return l.insertHeaderChainAssertFunc(chain, checkFreq)
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}
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func newNodeID(t *testing.T) *enode.Node {
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key, err := crypto.GenerateKey()
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if err != nil {
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t.Fatal("generate key err:", err)
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}
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return enode.NewV4(&key.PublicKey, net.IP{}, 35000, 35000)
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}
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