github.com/reapchain/go-reapchain@v0.2.15-0.20210609012950-9735c110c705/consensus/podc/core/roundchange_test.go (about)

     1  // Copyright 2017 AMIS Technologies
     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/podc"
    25  	"github.com/ethereum/go-ethereum/consensus/podc/validator"
    26  )
    27  
    28  func TestRoundChangeSet(t *testing.T) {
    29  	vset := validator.NewSet(generateValidators(4), podc.RoundRobin)
    30  	rc := newRoundChangeSet(vset)
    31  
    32  	view := &podc.View{
    33  		Sequence: big.NewInt(1),
    34  		Round:    big.NewInt(1),
    35  	}
    36  	r := &roundChange{
    37  		Round:    view.Round,
    38  		Sequence: view.Sequence,
    39  		Digest:   common.Hash{},
    40  	}
    41  	m, _ := Encode(r)
    42  
    43  	// Test Add()
    44  	// Add message from all validators
    45  	for i, v := range vset.List() {
    46  		msg := &message{
    47  			Code:    msgRoundChange,
    48  			Msg:     m,
    49  			Address: v.Address(),
    50  		}
    51  		rc.Add(view.Round, msg)
    52  		if rc.roundChanges[view.Round.Uint64()].Size() != i+1 {
    53  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), i+1)
    54  		}
    55  	}
    56  
    57  	// Add message again from all validators, but the size should be the same
    58  	for _, v := range vset.List() {
    59  		msg := &message{
    60  			Code:    msgRoundChange,
    61  			Msg:     m,
    62  			Address: v.Address(),
    63  		}
    64  		rc.Add(view.Round, msg)
    65  		if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
    66  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
    67  		}
    68  	}
    69  
    70  	// Test MaxRound()
    71  	for i := 0; i < 10; i++ {
    72  		maxRound := rc.MaxRound(i)
    73  		if i <= vset.Size() {
    74  			if maxRound == nil || maxRound.Cmp(view.Round) != 0 {
    75  				t.Errorf("max round mismatch: have %v, want %v", maxRound, view.Round)
    76  			}
    77  		} else if maxRound != nil {
    78  			t.Errorf("max round mismatch: have %v, want nil", maxRound)
    79  		}
    80  	}
    81  
    82  	// Test Clear()
    83  	for i := int64(0); i < 2; i++ {
    84  		rc.Clear(big.NewInt(i))
    85  		if rc.roundChanges[view.Round.Uint64()].Size() != vset.Size() {
    86  			t.Errorf("the size of round change messages mismatch: have %v, want %v", rc.roundChanges[view.Round.Uint64()].Size(), vset.Size())
    87  		}
    88  	}
    89  	rc.Clear(big.NewInt(2))
    90  	if rc.roundChanges[view.Round.Uint64()] != nil {
    91  		t.Errorf("the change messages mismatch: have %v, want nil", rc.roundChanges[view.Round.Uint64()])
    92  	}
    93  }