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package rollup
import (
"context"
"encoding/json"
"math/big"
"math/rand"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum-optimism/optimism/op-node/eth"
)
func randConfig() *Config {
randHash := func() (out [32]byte) {
rand.Read(out[:])
return
}
randAddr := func() (out common.Address) { // we need generics...
rand.Read(out[:])
return
}
return &Config{
Genesis: Genesis{
L1: eth.BlockID{Hash: randHash(), Number: 424242},
L2: eth.BlockID{Hash: randHash(), Number: 1337},
L2Time: uint64(time.Now().Unix()),
SystemConfig: eth.SystemConfig{
BatcherAddr: randAddr(),
Overhead: randHash(),
Scalar: randHash(),
GasLimit: 1234567,
},
},
BlockTime: 2,
MaxSequencerDrift: 100,
SeqWindowSize: 2,
ChannelTimeout: 123,
L1ChainID: big.NewInt(900),
L2ChainID: big.NewInt(901),
BatchInboxAddress: randAddr(),
DepositContractAddress: randAddr(),
L1SystemConfigAddress: randAddr(),
}
}
func TestConfigJSON(t *testing.T) {
config := randConfig()
data, err := json.Marshal(config)
assert.NoError(t, err)
var roundTripped Config
assert.NoError(t, json.Unmarshal(data, &roundTripped))
assert.Equal(t, &roundTripped, config)
}
type mockL1Client struct {
chainID *big.Int
Hash common.Hash
}
func (m *mockL1Client) ChainID(context.Context) (*big.Int, error) {
return m.chainID, nil
}
func (m *mockL1Client) L1BlockRefByNumber(ctx context.Context, number uint64) (eth.L1BlockRef, error) {
return eth.L1BlockRef{
Hash: m.Hash,
Number: 100,
}, nil
}
func TestValidateL1Config(t *testing.T) {
config := randConfig()
config.L1ChainID = big.NewInt(100)
config.Genesis.L1.Number = 100
config.Genesis.L1.Hash = [32]byte{0x01}
mockClient := mockL1Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL1Config(context.TODO(), &mockClient)
assert.NoError(t, err)
}
func TestValidateL1ConfigInvalidChainIdFails(t *testing.T) {
config := randConfig()
config.L1ChainID = big.NewInt(101)
config.Genesis.L1.Number = 100
config.Genesis.L1.Hash = [32]byte{0x01}
mockClient := mockL1Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL1Config(context.TODO(), &mockClient)
assert.Error(t, err)
config.L1ChainID = big.NewInt(99)
err = config.ValidateL1Config(context.TODO(), &mockClient)
assert.Error(t, err)
}
func TestValidateL1ConfigInvalidGenesisHashFails(t *testing.T) {
config := randConfig()
config.L1ChainID = big.NewInt(100)
config.Genesis.L1.Number = 100
config.Genesis.L1.Hash = [32]byte{0x00}
mockClient := mockL1Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL1Config(context.TODO(), &mockClient)
assert.Error(t, err)
config.Genesis.L1.Hash = [32]byte{0x02}
err = config.ValidateL1Config(context.TODO(), &mockClient)
assert.Error(t, err)
}
func TestCheckL1ChainID(t *testing.T) {
config := randConfig()
config.L1ChainID = big.NewInt(100)
err := config.CheckL1ChainID(context.TODO(), &mockL1Client{chainID: big.NewInt(100)})
assert.NoError(t, err)
err = config.CheckL1ChainID(context.TODO(), &mockL1Client{chainID: big.NewInt(101)})
assert.Error(t, err)
err = config.CheckL1ChainID(context.TODO(), &mockL1Client{chainID: big.NewInt(99)})
assert.Error(t, err)
}
func TestCheckL1BlockRefByNumber(t *testing.T) {
config := randConfig()
config.Genesis.L1.Number = 100
config.Genesis.L1.Hash = [32]byte{0x01}
mockClient := mockL1Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.CheckL1GenesisBlockHash(context.TODO(), &mockClient)
assert.NoError(t, err)
mockClient.Hash = common.Hash{0x02}
err = config.CheckL1GenesisBlockHash(context.TODO(), &mockClient)
assert.Error(t, err)
mockClient.Hash = common.Hash{0x00}
err = config.CheckL1GenesisBlockHash(context.TODO(), &mockClient)
assert.Error(t, err)
}
type mockL2Client struct {
chainID *big.Int
Hash common.Hash
}
func (m *mockL2Client) ChainID(context.Context) (*big.Int, error) {
return m.chainID, nil
}
func (m *mockL2Client) L2BlockRefByNumber(ctx context.Context, number uint64) (eth.L2BlockRef, error) {
return eth.L2BlockRef{
Hash: m.Hash,
Number: 100,
}, nil
}
func TestValidateL2Config(t *testing.T) {
config := randConfig()
config.L2ChainID = big.NewInt(100)
config.Genesis.L2.Number = 100
config.Genesis.L2.Hash = [32]byte{0x01}
mockClient := mockL2Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL2Config(context.TODO(), &mockClient)
assert.NoError(t, err)
}
func TestValidateL2ConfigInvalidChainIdFails(t *testing.T) {
config := randConfig()
config.L2ChainID = big.NewInt(101)
config.Genesis.L2.Number = 100
config.Genesis.L2.Hash = [32]byte{0x01}
mockClient := mockL2Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL2Config(context.TODO(), &mockClient)
assert.Error(t, err)
config.L2ChainID = big.NewInt(99)
err = config.ValidateL2Config(context.TODO(), &mockClient)
assert.Error(t, err)
}
func TestValidateL2ConfigInvalidGenesisHashFails(t *testing.T) {
config := randConfig()
config.L2ChainID = big.NewInt(100)
config.Genesis.L2.Number = 100
config.Genesis.L2.Hash = [32]byte{0x00}
mockClient := mockL2Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.ValidateL2Config(context.TODO(), &mockClient)
assert.Error(t, err)
config.Genesis.L2.Hash = [32]byte{0x02}
err = config.ValidateL2Config(context.TODO(), &mockClient)
assert.Error(t, err)
}
func TestCheckL2ChainID(t *testing.T) {
config := randConfig()
config.L2ChainID = big.NewInt(100)
err := config.CheckL2ChainID(context.TODO(), &mockL2Client{chainID: big.NewInt(100)})
assert.NoError(t, err)
err = config.CheckL2ChainID(context.TODO(), &mockL2Client{chainID: big.NewInt(101)})
assert.Error(t, err)
err = config.CheckL2ChainID(context.TODO(), &mockL2Client{chainID: big.NewInt(99)})
assert.Error(t, err)
}
func TestCheckL2BlockRefByNumber(t *testing.T) {
config := randConfig()
config.Genesis.L2.Number = 100
config.Genesis.L2.Hash = [32]byte{0x01}
mockClient := mockL2Client{chainID: big.NewInt(100), Hash: common.Hash{0x01}}
err := config.CheckL2GenesisBlockHash(context.TODO(), &mockClient)
assert.NoError(t, err)
mockClient.Hash = common.Hash{0x02}
err = config.CheckL2GenesisBlockHash(context.TODO(), &mockClient)
assert.Error(t, err)
mockClient.Hash = common.Hash{0x00}
err = config.CheckL2GenesisBlockHash(context.TODO(), &mockClient)
assert.Error(t, err)
}