2015-02-25 04:34:12 -08:00
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package blockpool
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import (
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"math/big"
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"testing"
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2015-03-19 15:53:15 -07:00
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"time"
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2015-02-25 04:34:12 -08:00
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"github.com/ethereum/go-ethereum/blockpool/test"
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2015-03-19 15:53:15 -07:00
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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2015-02-25 04:34:12 -08:00
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)
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// the actual tests
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func TestAddPeer(t *testing.T) {
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test.LogInit()
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_, blockPool, blockPoolTester := newTestBlockPool(t)
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peer0 := blockPoolTester.newPeer("peer0", 1, 0)
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peer1 := blockPoolTester.newPeer("peer1", 2, 1)
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peer2 := blockPoolTester.newPeer("peer2", 3, 2)
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var bestpeer *peer
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blockPool.Start()
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// pool
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best := peer0.AddPeer()
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if !best {
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t.Errorf("peer0 (TD=1) not accepted as best")
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}
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if blockPool.peers.best.id != "peer0" {
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t.Errorf("peer0 (TD=1) not set as best")
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}
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best = peer2.AddPeer()
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if !best {
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t.Errorf("peer2 (TD=3) not accepted as best")
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}
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if blockPool.peers.best.id != "peer2" {
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t.Errorf("peer2 (TD=3) not set as best")
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}
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peer2.waitBlocksRequests(2)
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best = peer1.AddPeer()
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if best {
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t.Errorf("peer1 (TD=2) accepted as best")
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}
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if blockPool.peers.best.id != "peer2" {
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t.Errorf("peer2 (TD=3) not set any more as best")
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}
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if blockPool.peers.best.td.Cmp(big.NewInt(int64(3))) != 0 {
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t.Errorf("peer1 TD not set")
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}
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peer2.td = 4
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peer2.currentBlock = 3
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best = peer2.AddPeer()
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if !best {
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t.Errorf("peer2 (TD=4) not accepted as best")
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}
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if blockPool.peers.best.id != "peer2" {
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t.Errorf("peer2 (TD=4) not set as best")
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}
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if blockPool.peers.best.td.Cmp(big.NewInt(int64(4))) != 0 {
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t.Errorf("peer2 TD not updated")
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}
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peer2.waitBlocksRequests(3)
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peer1.td = 3
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peer1.currentBlock = 2
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best = peer1.AddPeer()
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if best {
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t.Errorf("peer1 (TD=3) should not be set as best")
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}
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if blockPool.peers.best.id == "peer1" {
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t.Errorf("peer1 (TD=3) should not be set as best")
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}
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bestpeer, best = blockPool.peers.getPeer("peer1")
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if bestpeer.td.Cmp(big.NewInt(int64(3))) != 0 {
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t.Errorf("peer1 TD should be updated")
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}
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blockPool.RemovePeer("peer2")
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bestpeer, best = blockPool.peers.getPeer("peer2")
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if bestpeer != nil {
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t.Errorf("peer2 not removed")
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}
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if blockPool.peers.best.id != "peer1" {
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t.Errorf("existing peer1 (TD=3) should be set as best peer")
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}
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peer1.waitBlocksRequests(2)
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blockPool.RemovePeer("peer1")
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bestpeer, best = blockPool.peers.getPeer("peer1")
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if bestpeer != nil {
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t.Errorf("peer1 not removed")
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}
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if blockPool.peers.best.id != "peer0" {
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t.Errorf("existing peer0 (TD=1) should be set as best peer")
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}
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peer0.waitBlocksRequests(0)
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blockPool.RemovePeer("peer0")
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bestpeer, best = blockPool.peers.getPeer("peer0")
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if bestpeer != nil {
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t.Errorf("peer1 not removed")
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}
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// adding back earlier peer ok
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peer0.currentBlock = 3
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best = peer0.AddPeer()
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if !best {
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t.Errorf("peer0 (TD=1) should be set as best")
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}
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if blockPool.peers.best.id != "peer0" {
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t.Errorf("peer0 (TD=1) should be set as best")
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}
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peer0.waitBlocksRequests(3)
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2015-03-19 15:53:15 -07:00
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newblock := &types.Block{Td: common.Big3}
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blockPool.chainEvents.Post(core.ChainHeadEvent{newblock})
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time.Sleep(100 * time.Millisecond)
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if blockPool.peers.best != nil {
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t.Errorf("no peer should be ahead of self")
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}
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best = peer1.AddPeer()
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if blockPool.peers.best != nil {
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t.Errorf("still no peer should be ahead of self")
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}
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2015-02-25 04:34:12 -08:00
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2015-03-19 15:53:15 -07:00
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best = peer2.AddPeer()
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if !best {
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t.Errorf("peer2 (TD=4) not accepted as best")
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}
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blockPool.RemovePeer("peer2")
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if blockPool.peers.best != nil {
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t.Errorf("no peer should be ahead of self")
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}
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blockPool.Stop()
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2015-02-25 04:34:12 -08:00
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}
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