op-program: Add chain config for Sepolia to op-program.

op-program/host/cmd/main_test.go

@@ -81,7 +81,7 @@ func TestNetwork(t *testing.T) {
 		expected := cfg
 		t.Run("Network_"+name, func(t *testing.T) {
 			// TODO(CLI-3936) Re-enable test for other networks once bedrock migration is complete
-			if name != "goerli" {
+			if name == "mainnet" {
 				t.Skipf("Not requiring chain config for network %s", name)
 				return
 			}

op-program/host/config/chaincfg.go

@@ -6,6 +6,8 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
+var enabledFromBedrockBlock = uint64(0)
+
 var OPGoerliChainConfig = &params.ChainConfig{
 	ChainID:                       big.NewInt(420),
 	HomesteadBlock:                big.NewInt(0),
@@ -34,6 +36,35 @@ var OPGoerliChainConfig = &params.ChainConfig{
 	},
 }
 
+var OPSepoliaChainConfig = &params.ChainConfig{
+	ChainID:                       big.NewInt(11155420),
+	HomesteadBlock:                big.NewInt(0),
+	DAOForkBlock:                  nil,
+	DAOForkSupport:                false,
+	EIP150Block:                   big.NewInt(0),
+	EIP155Block:                   big.NewInt(0),
+	EIP158Block:                   big.NewInt(0),
+	ByzantiumBlock:                big.NewInt(0),
+	ConstantinopleBlock:           big.NewInt(0),
+	PetersburgBlock:               big.NewInt(0),
+	IstanbulBlock:                 big.NewInt(0),
+	MuirGlacierBlock:              big.NewInt(0),
+	BerlinBlock:                   big.NewInt(0),
+	LondonBlock:                   big.NewInt(0),
+	ArrowGlacierBlock:             big.NewInt(0),
+	GrayGlacierBlock:              big.NewInt(0),
+	MergeNetsplitBlock:            big.NewInt(0),
+	BedrockBlock:                  big.NewInt(0),
+	RegolithTime:                  &enabledFromBedrockBlock,
+	TerminalTotalDifficulty:       big.NewInt(0),
+	TerminalTotalDifficultyPassed: true,
+	Optimism: &params.OptimismConfig{
+		EIP1559Elasticity:  6,
+		EIP1559Denominator: 50,
+	},
+}
+
 var L2ChainConfigsByName = map[string]*params.ChainConfig{
-	"goerli": OPGoerliChainConfig,
+	"goerli":  OPGoerliChainConfig,
+	"sepolia": OPSepoliaChainConfig,
 }