github.com/ConsenSys/Quorum@v20.10.0+incompatible/consensus/istanbul/core/roundchange_test.go (about)

     1  // Copyright 2017 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 core
    18  
    19  import (
    20  	"math/big"
    21  	"testing"
    22  
    23  	"github.com/ethereum/go-ethereum/common"
    24  	"github.com/ethereum/go-ethereum/consensus/istanbul"
    25  	"github.com/ethereum/go-ethereum/consensus/istanbul/validator"
    26  )
    27  
    28  func TestRoundChangeSet(t *testing.T) {
    29  	vset := validator.NewSet(generateValidators(4), istanbul.RoundRobin)
    30  	rc := newRoundChangeSet(vset)
    31  
    32  	view := &istanbul.View{
    33  		Sequence: big.NewInt(1),
    34  		Round:    big.NewInt(1),
    35  	}
    36  	r := &istanbul.Subject{
    37  		View:   view,
    38  		Digest: common.Hash{},
    39  	}
    40  	m, _ := Encode(r)
    41  
    42  	// Test Add()
    43  	// Add message from all validators
    44  	for i, v := range vset.List() {
    45  		msg := &message{
    46  			Code:    msgRoundChange,
    47  			Msg:     m,
    48  			Address: v.Address(),
    49  		}
    50  		rc.Add(view.Round, msg)
    51  		if rc.roundChanges[view.Round.Uint64()].Size() != i+1 {
    52  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), i+1)
    53  		}
    54  	}
    55  
    56  	// Add message again from all validators, but the size should be the same
    57  	for _, v := range vset.List() {
    58  		msg := &message{
    59  			Code:    msgRoundChange,
    60  			Msg:     m,
    61  			Address: v.Address(),
    62  		}
    63  		rc.Add(view.Round, msg)
    64  		if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
    65  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
    66  		}
    67  	}
    68  
    69  	// Test MaxRound()
    70  	for i := 0; i < 10; i++ {
    71  		maxRound := rc.MaxRound(i)
    72  		if i <= vset.Size() {
    73  			if maxRound == nil || maxRound.Cmp(view.Round) != 0 {
    74  				t.Errorf("max round mismatch: have %v, want %v", maxRound, view.Round)
    75  			}
    76  		} else if maxRound != nil {
    77  			t.Errorf("max round mismatch: have %v, want nil", maxRound)
    78  		}
    79  	}
    80  
    81  	// Test Clear()
    82  	for i := int64(0); i < 2; i++ {
    83  		rc.Clear(big.NewInt(i))
    84  		if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
    85  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
    86  		}
    87  	}
    88  	rc.Clear(big.NewInt(2))
    89  	if rc.roundChanges[view.Round.Uint64()] != nil {
    90  		t.Errorf("the change messages mismatch: have %v, want nil", rc.roundChanges[view.Round.Uint64()])
    91  	}
    92  }