Node: Add Optimism chainID (wormhole-foundation#1867)

Change-Id: Ic86d9ff02c8ab486e8fae077f21c833de156a9d8

sdk/vaa/structs.go

@@ -186,6 +186,8 @@ func (c ChainID) String() string {
 		return "injective"
 	case ChainIDArbitrum:
 		return "arbitrum"
+	case ChainIDOptimism:
+		return "optimism"
 	case ChainIDPythNet:
 		return "pythnet"
 	case ChainIDWormchain:
@@ -245,6 +247,8 @@ func ChainIDFromString(s string) (ChainID, error) {
 		return ChainIDInjective, nil
 	case "arbitrum":
 		return ChainIDArbitrum, nil
+	case "optimism":
+		return ChainIDOptimism, nil
 	case "pythnet":
 		return ChainIDPythNet, nil
 	case "wormchain":
@@ -302,6 +306,8 @@ const (
 	ChainIDAptos ChainID = 22
 	// ChainIDArbitrum is the ChainID of Arbitrum
 	ChainIDArbitrum ChainID = 23
+	// ChainIDOptimism is the ChainID of Optimism
+	ChainIDOptimism ChainID = 24
 	// ChainIDPythNet is the ChainID of PythNet
 	ChainIDPythNet ChainID = 26
 	// ChainIDXpla is the ChainID of Xpla

sdk/vaa/structs_test.go

@@ -70,6 +70,7 @@ func TestChainIDFromString(t *testing.T) {
 		{input: "Terra2", output: ChainIDTerra2},
 		{input: "Injective", output: ChainIDInjective},
 		{input: "Arbitrum", output: ChainIDArbitrum},
+		{input: "Optimism", output: ChainIDOptimism},
 		{input: "XPLA", output: ChainIDXpla},
 		{input: "Wormchain", output: ChainIDWormchain},
 		{input: "wormchain", output: ChainIDWormchain},
@@ -166,6 +167,7 @@ func TestChainId_String(t *testing.T) {
 		{input: 21, output: "sui"},
 		{input: 22, output: "aptos"},
 		{input: 23, output: "arbitrum"},
+		{input: 24, output: "optimism"},
 		{input: 28, output: "xpla"},
 		{input: 3104, output: "wormchain"},
 	}