2017-10-31 15:24:11 -07:00
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// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/istanbul"
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"github.com/ethereum/go-ethereum/consensus/istanbul/validator"
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)
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func TestRoundChangeSet(t *testing.T) {
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vset := validator.NewSet(generateValidators(4), istanbul.RoundRobin)
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rc := newRoundChangeSet(vset)
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view := &istanbul.View{
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Sequence: big.NewInt(1),
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Round: big.NewInt(1),
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}
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2018-01-30 18:27:08 -08:00
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r := &istanbul.Subject{
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View: view,
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Digest: common.Hash{},
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2017-10-31 15:24:11 -07:00
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}
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m, _ := Encode(r)
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// Test Add()
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// Add message from all validators
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for i, v := range vset.List() {
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msg := &message{
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Code: msgRoundChange,
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Msg: m,
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Address: v.Address(),
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}
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rc.Add(view.Round, msg)
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if rc.roundChanges[view.Round.Uint64()].Size() != i+1 {
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t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), i+1)
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}
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}
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// Add message again from all validators, but the size should be the same
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for _, v := range vset.List() {
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msg := &message{
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Code: msgRoundChange,
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Msg: m,
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Address: v.Address(),
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}
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rc.Add(view.Round, msg)
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if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
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t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
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}
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}
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// Test MaxRound()
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for i := 0; i < 10; i++ {
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maxRound := rc.MaxRound(i)
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if i <= vset.Size() {
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if maxRound == nil || maxRound.Cmp(view.Round) != 0 {
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t.Errorf("max round mismatch: have %v, want %v", maxRound, view.Round)
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}
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} else if maxRound != nil {
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t.Errorf("max round mismatch: have %v, want nil", maxRound)
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}
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}
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// Test Clear()
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for i := int64(0); i < 2; i++ {
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rc.Clear(big.NewInt(i))
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if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
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t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
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}
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}
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rc.Clear(big.NewInt(2))
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if rc.roundChanges[view.Round.Uint64()] != nil {
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t.Errorf("the change messages mismatch: have %v, want nil", rc.roundChanges[view.Round.Uint64()])
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}
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}
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