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nodesCoordinatorMock.go
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/
nodesCoordinatorMock.go
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package mock
import (
"bytes"
"fmt"
"math/big"
"github.com/ElrondNetwork/elrond-go/sharding"
)
// NodesCoordinator defines the behaviour of a struct able to do validator group selection
type NodesCoordinatorMock struct {
Validators map[uint32][]sharding.Validator
ShardConsensusSize uint32
MetaConsensusSize uint32
ShardId uint32
NbShards uint32
GetSelectedPublicKeysCalled func(selection []byte, shardId uint32) (publicKeys []string, err error)
GetValidatorsPublicKeysCalled func(randomness []byte, round uint64, shardId uint32) ([]string, error)
GetValidatorsRewardsAddressesCalled func(randomness []byte, round uint64, shardId uint32) ([]string, error)
LoadNodesPerShardsCalled func(nodes map[uint32][]sharding.Validator) error
ComputeValidatorsGroupCalled func(randomness []byte, round uint64, shardId uint32) (validatorsGroup []sharding.Validator, err error)
GetValidatorWithPublicKeyCalled func(publicKey []byte) (validator sharding.Validator, shardId uint32, err error)
}
func NewNodesCoordinatorMock() *NodesCoordinatorMock {
nbShards := uint32(1)
nodesPerShard := 2
validatorsMap := make(map[uint32][]sharding.Validator)
for sh := uint32(0); sh < nbShards; sh++ {
validatorsList := make([]sharding.Validator, nodesPerShard)
for v := 0; v < nodesPerShard; v++ {
validatorsList[v], _ = sharding.NewValidator(
big.NewInt(10),
1,
[]byte(fmt.Sprintf("pubKey%d%d", sh, v)),
[]byte(fmt.Sprintf("address%d%d", sh, v)),
)
}
validatorsMap[sh] = validatorsList
}
validatorsList := make([]sharding.Validator, nodesPerShard)
for v := 0; v < nodesPerShard; v++ {
validatorsList[v], _ = sharding.NewValidator(
big.NewInt(10),
1,
[]byte(fmt.Sprintf("pubKey%d%d", sharding.MetachainShardId, v)),
[]byte(fmt.Sprintf("address%d%d", sharding.MetachainShardId, v)),
)
}
validatorsMap[sharding.MetachainShardId] = validatorsList
return &NodesCoordinatorMock{
ShardConsensusSize: 1,
MetaConsensusSize: 1,
ShardId: 0,
NbShards: nbShards,
Validators: validatorsMap,
}
}
func (ncm *NodesCoordinatorMock) GetAllValidatorsPublicKeys() map[uint32][][]byte {
return nil
}
func (ncm *NodesCoordinatorMock) GetValidatorsIndexes(publicKeys []string) []uint64 {
return nil
}
func (ncm *NodesCoordinatorMock) GetSelectedPublicKeys(selection []byte, shardId uint32) (publicKeys []string, err error) {
if ncm.GetSelectedPublicKeysCalled != nil {
return ncm.GetSelectedPublicKeysCalled(selection, shardId)
}
if len(ncm.Validators) == 0 {
return nil, sharding.ErrNilInputNodesMap
}
pubKeys := make([]string, 0)
for _, v := range ncm.Validators[shardId] {
pubKeys = append(pubKeys, string(v.PubKey()))
}
return pubKeys, nil
}
func (ncm *NodesCoordinatorMock) GetValidatorsPublicKeys(
randomness []byte,
round uint64,
shardId uint32,
) ([]string, error) {
if ncm.GetValidatorsPublicKeysCalled != nil {
return ncm.GetValidatorsPublicKeysCalled(randomness, round, shardId)
}
validators, err := ncm.ComputeValidatorsGroup(randomness, round, shardId)
if err != nil {
return nil, err
}
valGrStr := make([]string, 0)
for _, v := range validators {
valGrStr = append(valGrStr, string(v.PubKey()))
}
return valGrStr, nil
}
func (ncm *NodesCoordinatorMock) GetValidatorsRewardsAddresses(
randomness []byte,
round uint64,
shardId uint32,
) ([]string, error) {
if ncm.GetValidatorsPublicKeysCalled != nil {
return ncm.GetValidatorsRewardsAddressesCalled(randomness, round, shardId)
}
validators, err := ncm.ComputeValidatorsGroup(randomness, round, shardId)
if err != nil {
return nil, err
}
addresses := make([]string, 0)
for _, v := range validators {
addresses = append(addresses, string(v.Address()))
}
return addresses, nil
}
func (ncm *NodesCoordinatorMock) SetNodesPerShards(nodes map[uint32][]sharding.Validator) error {
if ncm.LoadNodesPerShardsCalled != nil {
return ncm.LoadNodesPerShardsCalled(nodes)
}
if nodes == nil {
return sharding.ErrNilInputNodesMap
}
ncm.Validators = nodes
return nil
}
func (ncm *NodesCoordinatorMock) ComputeValidatorsGroup(
randomess []byte,
round uint64,
shardId uint32,
) ([]sharding.Validator, error) {
var consensusSize uint32
if ncm.ComputeValidatorsGroupCalled != nil {
return ncm.ComputeValidatorsGroupCalled(randomess, round, shardId)
}
if ncm.ShardId == sharding.MetachainShardId {
consensusSize = ncm.MetaConsensusSize
} else {
consensusSize = ncm.ShardConsensusSize
}
if randomess == nil {
return nil, sharding.ErrNilRandomness
}
validatorsGroup := make([]sharding.Validator, 0)
for i := uint32(0); i < consensusSize; i++ {
validatorsGroup = append(validatorsGroup, ncm.Validators[shardId][i])
}
return validatorsGroup, nil
}
func (ncm *NodesCoordinatorMock) GetValidatorWithPublicKey(publicKey []byte) (sharding.Validator, uint32, error) {
if ncm.GetValidatorWithPublicKeyCalled != nil {
return ncm.GetValidatorWithPublicKeyCalled(publicKey)
}
if publicKey == nil {
return nil, 0, sharding.ErrNilPubKey
}
for shardId, shardEligible := range ncm.Validators {
for i := 0; i < len(shardEligible); i++ {
if bytes.Equal(publicKey, shardEligible[i].PubKey()) {
return shardEligible[i], shardId, nil
}
}
}
return nil, 0, sharding.ErrValidatorNotFound
}
func (ncm *NodesCoordinatorMock) GetOwnPublicKey() []byte {
return []byte("key")
}
func (ncm *NodesCoordinatorMock) IsInterfaceNil() bool {
if ncm == nil {
return true
}
return false
}