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package genesis_test
import (
"context"
"encoding/json"
"flag"
"math/big"
"os"
"testing"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum-optimism/optimism/op-bindings/bindings"
"github.com/ethereum-optimism/optimism/op-bindings/predeploys"
"github.com/ethereum-optimism/optimism/op-chain-ops/genesis"
"github.com/ethereum-optimism/optimism/op-service/eth"
)
var writeFile bool
func init() {
flag.BoolVar(&writeFile, "write-file", false, "write the genesis file to disk")
}
var testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
// Tests the BuildL2MainnetGenesis factory with the provided config.
func testBuildL2Genesis(t *testing.T, config *genesis.DeployConfig) *core.Genesis {
backend := backends.NewSimulatedBackend(
core.GenesisAlloc{
crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(10000000000000000)},
},
15000000,
)
block, err := backend.BlockByNumber(context.Background(), common.Big0)
require.NoError(t, err)
gen, err := genesis.BuildL2Genesis(config, block)
require.Nil(t, err)
require.NotNil(t, gen)
proxyBytecode, err := bindings.GetDeployedBytecode("Proxy")
require.NoError(t, err)
for name, predeploy := range predeploys.Predeploys {
addr := predeploy.Address
account, ok := gen.Alloc[addr]
require.Equal(t, true, ok, name)
require.Greater(t, len(account.Code), 0)
adminSlot, ok := account.Storage[genesis.AdminSlot]
isProxy := !predeploy.ProxyDisabled ||
(!config.EnableGovernance && addr == predeploys.GovernanceTokenAddr)
if isProxy {
require.Equal(t, true, ok, name)
require.Equal(t, eth.AddressAsLeftPaddedHash(predeploys.ProxyAdminAddr), adminSlot)
require.Equal(t, proxyBytecode, account.Code)
} else {
require.Equal(t, false, ok, name)
require.NotEqual(t, proxyBytecode, account.Code, name)
}
}
// All of the precompile addresses should be funded with a single wei
for i := 0; i < genesis.PrecompileCount; i++ {
addr := common.BytesToAddress([]byte{byte(i)})
require.Equal(t, common.Big1, gen.Alloc[addr].Balance)
}
create2Deployer := gen.Alloc[predeploys.Create2DeployerAddr]
codeHash := crypto.Keccak256Hash(create2Deployer.Code)
require.Equal(t, codeHash, bindings.Create2DeployerCodeHash)
if writeFile {
file, _ := json.MarshalIndent(gen, "", " ")
_ = os.WriteFile("genesis.json", file, 0644)
}
return gen
}
func TestBuildL2MainnetGenesis(t *testing.T) {
config, err := genesis.NewDeployConfig("./testdata/test-deploy-config-devnet-l1.json")
require.Nil(t, err)
config.EnableGovernance = true
config.FundDevAccounts = false
gen := testBuildL2Genesis(t, config)
require.Equal(t, 2333, len(gen.Alloc))
}
func TestBuildL2MainnetNoGovernanceGenesis(t *testing.T) {
config, err := genesis.NewDeployConfig("./testdata/test-deploy-config-devnet-l1.json")
require.Nil(t, err)
config.EnableGovernance = false
config.FundDevAccounts = false
gen := testBuildL2Genesis(t, config)
require.Equal(t, 2333, len(gen.Alloc))
}