Improve error messages

2 files changed, 7 insertions, 4 deletions

diff --git a/plugin/evm/import_tx.go b/plugin/evm/import_tx.go
index 4d7f219..2b8882f 100644
--- a/plugin/evm/import_tx.go
+++ b/plugin/evm/import_tx.go
@@ -64,6 +64,8 @@ func (tx *UnsignedImportTx) Verify(
 		return errWrongChainID
 	case len(tx.ImportedInputs) == 0:
 		return errNoImportInputs
+	case len(tx.Outs) == 0:
+		return errNoImportOutputs
 	case tx.NetworkID != ctx.NetworkID:
 		return errWrongNetworkID
 	case !ctx.ChainID.Equals(tx.BlockchainID):
diff --git a/plugin/evm/vm.go b/plugin/evm/vm.go
index 64ae42e..3ae3b12 100644
--- a/plugin/evm/vm.go
+++ b/plugin/evm/vm.go
@@ -107,10 +107,11 @@ var (
 	errNoFunds                         = errors.New("no spendable funds were found")
 	errWrongChainID                    = errors.New("tx has wrong chain ID")
 	errInsufficientFunds               = errors.New("insufficient funds")
-	errNoExportOutputs                 = errors.New("no export outputs")
-	errExportOutputsNotSortedAndUnique = errors.New("export outputs are not sorted and unique")
-	errOutputsNotSorted                = errors.New("outputs not sorted")
-	errNoExportInputs                  = errors.New("no inputs to export")
+	errNoExportOutputs                 = errors.New("tx has no export outputs")
+	errExportOutputsNotSortedAndUnique = errors.New("tx export outputs are not sorted and unique")
+	errOutputsNotSorted                = errors.New("tx outputs not sorted")
+	errNoImportOutputs                 = errors.New("tx has no outputs to import")
+	errNoExportInputs                  = errors.New("tx has no inputs to export")
 	errInputsNotSortedAndUnique        = errors.New("inputs not sorted and unique")
 	errOverflowExport                  = errors.New("overflow when computing export amount + txFee")
 	errInvalidNonce                    = errors.New("invalid nonce")