Added GetAddresses unit test and fixed SubmitTransaction unit test

pkg/solana/chainwriter/ccip_example_config.go

@@ -79,7 +79,7 @@ func TestConfig() {
 			// 3. Lookup Table content - Get all the accounts from a lookup table
 			// 4. PDA Account Lookup - Based on another account and a seed/s
 			//	Nested PDA Account with seeds from:
-			// 		-> input paramters
+			// 		-> input parameters
 			// 		-> constant
 			// 	PDALookups can resolve to multiple addresses if:
 			// 		A) The PublicKey lookup resolves to multiple addresses (i.e. multiple token addresses)

pkg/solana/chainwriter/chain_writer.go

@@ -190,8 +190,14 @@ func (s *SolanaChainWriterService) FilterLookupTableAddresses(
 }
 
 func (s *SolanaChainWriterService) SubmitTransaction(ctx context.Context, contractName, method string, args any, transactionID string, toAddress string, meta *types.TxMeta, value *big.Int) error {
-	programConfig := s.config.Programs[contractName]
-	methodConfig := programConfig.Methods[method]
+	programConfig, exists := s.config.Programs[contractName]
+	if !exists {
+		return fmt.Errorf("failed to find program config for contract name: %s", contractName)
+	}
+	methodConfig, exists := programConfig.Methods[method]
+	if !exists {
+		return fmt.Errorf("failed to find method config for method: %s", method)
+	}
 
 	// Configure debug ID
 	debugID := ""