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committee_test.go
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package committee
import (
"testing"
"github.com/pactus-project/pactus/crypto"
"github.com/pactus-project/pactus/crypto/bls"
"github.com/pactus-project/pactus/types/validator"
"github.com/stretchr/testify/assert"
)
func copyValidator(val *validator.Validator) *validator.Validator {
copy := validator.NewValidator(val.PublicKey(), val.Number())
copy.UpdateLastBondingHeight(val.LastBondingHeight())
copy.UpdateLastJoinedHeight(val.LastJoinedHeight())
copy.UpdateUnbondingHeight(val.UnbondingHeight())
// Stake can't be changes as long as validator is inside committee
// Check Bond executor
return copy
}
func TestContains(t *testing.T) {
committee, signers := GenerateTestCommittee(21)
nonExist := crypto.GenerateTestAddress()
assert.True(t, committee.Contains(signers[0].Address()))
assert.False(t, committee.Contains(nonExist))
}
func TestProposer(t *testing.T) {
committee, signers := GenerateTestCommittee(4)
assert.Equal(t, committee.Proposer(0).Address(), signers[0].Address())
assert.Equal(t, committee.Proposer(3).Address(), signers[3].Address())
assert.Equal(t, committee.Proposer(4).Address(), signers[0].Address())
committee.Update(0, nil)
assert.Equal(t, committee.Proposer(0).Address(), signers[1].Address())
}
func TestInvalidProposerJoinAndLeave(t *testing.T) {
val1, _ := validator.GenerateTestValidator(0)
val2, _ := validator.GenerateTestValidator(1)
val3, _ := validator.GenerateTestValidator(2)
val4, _ := validator.GenerateTestValidator(3)
val5, _ := validator.GenerateTestValidator(4)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 4, val5.Address())
assert.Error(t, err)
assert.Nil(t, committee)
}
func TestProposerMove(t *testing.T) {
pub1, _ := bls.GenerateTestKeyPair()
pub2, _ := bls.GenerateTestKeyPair()
pub3, _ := bls.GenerateTestKeyPair()
pub4, _ := bls.GenerateTestKeyPair()
pub5, _ := bls.GenerateTestKeyPair()
pub6, _ := bls.GenerateTestKeyPair()
pub7, _ := bls.GenerateTestKeyPair()
val1 := validator.NewValidator(pub1, 1)
val2 := validator.NewValidator(pub2, 2)
val3 := validator.NewValidator(pub3, 3)
val4 := validator.NewValidator(pub4, 4)
val5 := validator.NewValidator(pub5, 5)
val6 := validator.NewValidator(pub6, 6)
val7 := validator.NewValidator(pub7, 7)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4, val5, val6, val7}, 7, val1.Address())
assert.NoError(t, err)
//
// +v+-+-+-+-+-+-+ +-+v+-+-+-+-+-+ +-+-+-+-+-+v+-+ +v+-+-+-+-+-+-+
// |1|2|3|4|5|6|7| => |1|2|3|4|5|6|7| => |1|2|3|4|5|6|7| => |1|2|3|4|5|6|7|
// +v+-+-+-+-+-+-+ +-+v+-+-+-+-+-+ +-+-+-+-+-+v+-+ +v+-+-+-+-+-+-+
//
// Height 1001
committee.Update(0, nil)
assert.Equal(t, committee.Proposer(0).Number(), int32(2))
assert.Equal(t, committee.Proposer(1).Number(), int32(3))
assert.Equal(t, committee.Validators(), []*validator.Validator{val1, val2, val3, val4, val5, val6, val7})
// Height 1002
committee.Update(3, nil)
assert.Equal(t, committee.Proposer(0).Number(), int32(6))
// Height 1003
committee.Update(1, nil)
assert.Equal(t, committee.Proposer(0).Number(), int32(1))
}
func TestProposerJoin(t *testing.T) {
pub1, _ := bls.GenerateTestKeyPair()
pub2, _ := bls.GenerateTestKeyPair()
pub3, _ := bls.GenerateTestKeyPair()
pub4, _ := bls.GenerateTestKeyPair()
pub5, _ := bls.GenerateTestKeyPair()
pub6, _ := bls.GenerateTestKeyPair()
pub7, _ := bls.GenerateTestKeyPair()
val1 := validator.NewValidator(pub1, 1)
val2 := validator.NewValidator(pub2, 2)
val3 := validator.NewValidator(pub3, 3)
val4 := validator.NewValidator(pub4, 4)
val5 := validator.NewValidator(pub5, 5)
val6 := validator.NewValidator(pub6, 6)
val7 := validator.NewValidator(pub7, 7)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 7, val1.Address())
assert.NoError(t, err)
assert.Equal(t, committee.Size(), 4)
//
// r=0 r=0 r=1 r=1 r=0
// +v+-+-+-+ +-+*+v+-+-+ +-+-+-+!+v+ +*+*+!+v+-+-+-+ +-+-+-+-+v+-+-+
// |1|2|3|4| => |1|5|2|3|4| => |1|5|2|3|4| => |6|7|1|5|2|3|4| => |6|7|1|5|2|3|4|
// +-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+
//
// Height 1000
// Val1 is in the committee
val2Copy := copyValidator(val2)
val2Copy.UpdateLastJoinedHeight(1000)
committee.Update(0, []*validator.Validator{val2Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(2))
assert.Equal(t, committee.Committers(), []int32{1, 2, 3, 4})
assert.Equal(t, committee.Size(), 4)
// Height 1001
val5Copy := copyValidator(val5)
val5Copy.UpdateLastJoinedHeight(1001)
committee.Update(0, []*validator.Validator{val5Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(3))
assert.Equal(t, committee.Proposer(1).Number(), int32(4))
assert.Equal(t, committee.Committers(), []int32{1, 5, 2, 3, 4})
assert.Equal(t, committee.Size(), 5)
// Height 1002
committee.Update(1, nil)
assert.Equal(t, committee.Proposer(0).Number(), int32(1))
assert.Equal(t, committee.Proposer(1).Number(), int32(5))
// Height 1003
val3Copy := copyValidator(val3)
val6Copy := copyValidator(val6)
val7Copy := copyValidator(val7)
val3Copy.UpdateLastJoinedHeight(1003)
val6Copy.UpdateLastJoinedHeight(1003)
val7Copy.UpdateLastJoinedHeight(1003)
committee.Update(1, []*validator.Validator{val7Copy, val3Copy, val6Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(2))
assert.Equal(t, committee.Committers(), []int32{6, 7, 1, 5, 2, 3, 4})
assert.Equal(t, committee.Size(), 7)
// Height 1004
committee.Update(0, nil)
assert.Equal(t, committee.Proposer(0).Number(), int32(3))
}
func TestProposerJoinAndLeave(t *testing.T) {
pub1, _ := bls.GenerateTestKeyPair()
pub2, _ := bls.GenerateTestKeyPair()
pub3, _ := bls.GenerateTestKeyPair()
pub4, _ := bls.GenerateTestKeyPair()
pub5, _ := bls.GenerateTestKeyPair()
pub6, _ := bls.GenerateTestKeyPair()
pub7, _ := bls.GenerateTestKeyPair()
pub8, _ := bls.GenerateTestKeyPair()
pub9, _ := bls.GenerateTestKeyPair()
pubA, _ := bls.GenerateTestKeyPair()
pubB, _ := bls.GenerateTestKeyPair()
pubC, _ := bls.GenerateTestKeyPair()
val1 := validator.NewValidator(pub1, 1)
val2 := validator.NewValidator(pub2, 2)
val3 := validator.NewValidator(pub3, 3)
val4 := validator.NewValidator(pub4, 4)
val5 := validator.NewValidator(pub5, 5)
val6 := validator.NewValidator(pub6, 6)
val7 := validator.NewValidator(pub7, 7)
val8 := validator.NewValidator(pub8, 8)
val9 := validator.NewValidator(pub9, 9)
valA := validator.NewValidator(pubA, 10)
valB := validator.NewValidator(pubB, 11)
valC := validator.NewValidator(pubC, 12)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4, val5, val6, val7}, 7, val1.Address())
assert.NoError(t, err)
// How committee changes when new validators join?
//
// Validators `1` to `7` are in the committee, and `1` is the oldest and also proposer.
// +v+-+-+-+-+-+-+
// |1|2|3|4|5|6|7|
// +-+-+-+-+-+-+-+
//
// New validators seat before proposer.
// In this example `8` seats before `1` (current proposer):
// +*+v+-+-+-+-+-+-+
// |8|1|2|3|4|5|6|7|
// +-+-+-+-+-+-+-+-+
//
// Now committee should be adjusted and the oldest validator should leave.
// +*+-+-+-+-+-+-+
// |8|2|3|4|5|6|7|
// +-+-+-+-+-+-+-+
//
// Now we move to the next proposer.
// +-+v+-+-+-+-+-+
// |8|2|3|4|5|6|7|
// +-+-+-+-+-+-+-+
//
//-------------------------------------
// In this test we cover these movement:
//
// h=1000, r=0 h=1001, r=0 h=1002, r=3 h=1003, r=0
// +v+-+-+-+-+-+-+ +*+-+-+-+-+-+-+ +-+!+!+!+v+-+-+ +-+-+-+-+*+v+-+
// |1|2|3|4|5|6|7| => |8|2|3|4|5|6|7| => |8|2|3|4|5|6|7| => |8|2|3|5|9|6|7| =>
// +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+
//
// h=1004, r=1 h=1005, r=0 h=1006, r=2 h=1007, r=4
// +v+-+-+-+-+*+!+ +-+*+*+v+-+-+-+ +-+-+-+-+!+!+v+ +v+*+!+!+!+!+!+
// |8|2|3|9|6|A|7| => |8|B|C|2|3|9|A| => |B|C|2|1|3|9|A| => |5|6|B|C|2|1|3|
// +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+
// Height 1001
val8Copy := copyValidator(val8)
val8Copy.UpdateLastJoinedHeight(1001)
committee.Update(0, []*validator.Validator{val8Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(2))
assert.Equal(t, committee.Proposer(1).Number(), int32(3))
assert.Equal(t, committee.Proposer(2).Number(), int32(4))
assert.Equal(t, committee.Committers(), []int32{8, 2, 3, 4, 5, 6, 7})
// Height 1002
val3Copy := copyValidator(val3)
val3Copy.UpdateLastJoinedHeight(1002)
committee.Update(3, []*validator.Validator{val3Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(6))
// Height 1003
val2Copy := copyValidator(val2)
val9Copy := copyValidator(val9)
val2Copy.UpdateLastJoinedHeight(1003)
val9Copy.UpdateLastJoinedHeight(1003)
committee.Update(0, []*validator.Validator{val9Copy, val2Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(7))
assert.Equal(t, committee.Proposer(1).Number(), int32(8))
assert.Equal(t, committee.Committers(), []int32{8, 2, 3, 5, 9, 6, 7})
// Height 1004
valACopy := copyValidator(valA)
valACopy.UpdateLastJoinedHeight(1004)
committee.Update(1, []*validator.Validator{valACopy})
assert.Equal(t, committee.Proposer(0).Number(), int32(2))
assert.Equal(t, committee.Committers(), []int32{8, 2, 3, 9, 6, 10, 7})
// Height 1005
valBCopy := copyValidator(valB)
valCCopy := copyValidator(valC)
valBCopy.UpdateLastJoinedHeight(1005)
valCCopy.UpdateLastJoinedHeight(1005)
committee.Update(0, []*validator.Validator{valCCopy, valBCopy})
assert.Equal(t, committee.Proposer(0).Number(), int32(3))
assert.Equal(t, committee.Proposer(1).Number(), int32(9))
assert.Equal(t, committee.Proposer(2).Number(), int32(10))
assert.Equal(t, committee.Committers(), []int32{8, 11, 12, 2, 3, 9, 10})
// Height 1006
val1Copy := copyValidator(val1)
val1Copy.UpdateLastJoinedHeight(1006)
committee.Update(2, []*validator.Validator{val1Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(11))
assert.Equal(t, committee.Committers(), []int32{11, 12, 2, 1, 3, 9, 10})
// Height 1007
val2Copy = copyValidator(val2)
val3Copy = copyValidator(val3)
val5Copy := copyValidator(val5)
val6Copy := copyValidator(val6)
val2Copy.UpdateLastJoinedHeight(1007)
val3Copy.UpdateLastJoinedHeight(1007)
val5Copy.UpdateLastJoinedHeight(1007)
val6Copy.UpdateLastJoinedHeight(1007)
committee.Update(4, []*validator.Validator{val2Copy, val3Copy, val5Copy, val6Copy})
assert.Equal(t, committee.Proposer(0).Number(), int32(5))
assert.Equal(t, committee.Committers(), []int32{5, 6, 11, 12, 2, 1, 3})
}
func TestIsProposer(t *testing.T) {
val1, _ := validator.GenerateTestValidator(0)
val2, _ := validator.GenerateTestValidator(1)
val3, _ := validator.GenerateTestValidator(2)
val4, _ := validator.GenerateTestValidator(3)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 4, val1.Address())
assert.NoError(t, err)
assert.Equal(t, committee.Proposer(0).Address(), val1.Address())
assert.Equal(t, committee.Proposer(1).Address(), val2.Address())
assert.True(t, committee.IsProposer(val3.Address(), 2))
assert.False(t, committee.IsProposer(val4.Address(), 2))
assert.False(t, committee.IsProposer(crypto.GenerateTestAddress(), 2))
assert.Equal(t, committee.Validators(), []*validator.Validator{val1, val2, val3, val4})
}
func TestCommitters(t *testing.T) {
val1, _ := validator.GenerateTestValidator(0)
val2, _ := validator.GenerateTestValidator(1)
val3, _ := validator.GenerateTestValidator(2)
val4, _ := validator.GenerateTestValidator(3)
committee, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 4, val1.Address())
assert.NoError(t, err)
assert.Equal(t, committee.Committers(), []int32{0, 1, 2, 3})
}
func TestSortJoined(t *testing.T) {
val1, _ := validator.GenerateTestValidator(0)
val2, _ := validator.GenerateTestValidator(1)
val3, _ := validator.GenerateTestValidator(2)
val4, _ := validator.GenerateTestValidator(3)
val5, _ := validator.GenerateTestValidator(4)
val6, _ := validator.GenerateTestValidator(5)
val7, _ := validator.GenerateTestValidator(6)
committee1, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 17, val1.Address())
assert.NoError(t, err)
committee2, err := NewCommittee([]*validator.Validator{val1, val2, val3, val4}, 17, val1.Address())
assert.NoError(t, err)
committee1.Update(0, []*validator.Validator{val5, val6, val7})
committee2.Update(0, []*validator.Validator{val7, val5, val6})
}
func TestTotalPower(t *testing.T) {
pub, _ := bls.GenerateTestKeyPair()
val0 := validator.NewValidator(pub, 0) // Bootstrap validator
val1, _ := validator.GenerateTestValidator(0)
val2, _ := validator.GenerateTestValidator(1)
val3, _ := validator.GenerateTestValidator(2)
val4, _ := validator.GenerateTestValidator(3)
committee, err := NewCommittee([]*validator.Validator{val0, val1, val2, val3, val4}, 4, val1.Address())
assert.NoError(t, err)
totalPower := val0.Power() + val1.Power() + val2.Power() + val3.Power() + val4.Power()
totalStake := val0.Stake() + val1.Stake() + val2.Stake() + val3.Stake() + val4.Stake()
assert.Equal(t, committee.TotalPower(), totalPower)
assert.Equal(t, committee.TotalPower(), totalStake+1)
}