check whether split quantity node exists

pkg/converters/gnucash/gnucash_transaction_data_file_importer_test.go

@@ -844,6 +844,25 @@ func TestGnuCashTransactionDatabaseFileParseImportedData_MissingTransactionRequi
 			gnucashCommonValidDataCaseFooter), 0, nil, nil, nil, nil, nil)
 	assert.EqualError(t, err, errs.ErrInvalidGnuCashFile.Message)
 
+	// Missing Transaction Split Quantity Node
+	_, _, _, _, _, _, err = converter.ParseImportedData(context, user, []byte(
+		gnucashCommonValidDataCaseHeader+
+			"<gnc:transaction version=\"2.0.0\">\n"+
+			"  <trn:date-posted>\n"+
+			"    <ts:date>2024-09-01 00:00:00 +0000</ts:date>\n"+
+			"  </trn:date-posted>\n"+
+			"  <trn:splits>\n"+
+			"    <trn:split>\n"+
+			"      <split:account type=\"guid\">00000000000000000000000000001000</split:account>\n"+
+			"    </trn:split>\n"+
+			"    <trn:split>\n"+
+			"      <split:account type=\"guid\">00000000000000000000000000000010</split:account>\n"+
+			"    </trn:split>\n"+
+			"  </trn:splits>\n"+
+			"</gnc:transaction>\n"+
+			gnucashCommonValidDataCaseFooter), 0, nil, nil, nil, nil, nil)
+	assert.EqualError(t, err, errs.ErrAmountInvalid.Message)
+
 	// Missing Transaction Split Account Node
 	_, _, _, _, _, _, err = converter.ParseImportedData(context, user, []byte(
 		gnucashCommonValidDataCaseHeader+

pkg/converters/gnucash/gnucash_transaction_table.go

@@ -136,6 +136,10 @@ func (t *gnucashTransactionDataRowIterator) parseTransaction(ctx core.Context, u
 			return nil, false, errs.ErrMissingAccountData
 		}
 
+		if splitData1.Quantity == "" || splitData2.Quantity == "" {
+			return nil, false, errs.ErrAmountInvalid
+		}
+
 		amount1, err := t.parseAmount(splitData1.Quantity)
 
 		if err != nil {
@@ -253,6 +257,10 @@ func (t *gnucashTransactionDataRowIterator) parseTransaction(ctx core.Context, u
 			return nil, false, errs.ErrMissingAccountData
 		}
 
+		if splitData.Quantity == "" {
+			return nil, false, errs.ErrAmountInvalid
+		}
+
 		amount, err := t.parseAmount(splitData.Quantity)
 
 		if err != nil {