do not allow amounts bigger than num decimals

contract/vm_callback.go

@@ -1045,7 +1045,8 @@ func parseDecimalAmount(str string, digits int) string {
 	if to_add > 0 {
 		p2 = p2 + strings.Repeat("0", to_add)
 	} else if to_add < 0 {
-		p2 = p2[0:digits]
+		//p2 = p2[0:digits]
+		return "error"
 	}
 	str = p1 + p2
 
@@ -1068,6 +1069,7 @@ func transformAmount(amountStr string, forkVersion int32) (*big.Int, error) {
 		if strings.Contains(amountStr,".") && strings.HasSuffix(amountStr,"aergo") {
 			// Extract the part before the unit
 			decimalAmount := strings.TrimSuffix(amountStr, "aergo")
+			decimalAmount = strings.TrimRight(decimalAmount, " ")
 			// Parse the decimal amount
 			decimalAmount = parseDecimalAmount(decimalAmount, 18)
 			if decimalAmount == "error" {

contract/vm_callback_test.go

@@ -162,8 +162,45 @@ func TestTransformAmount(t *testing.T) {
 		{4, ".01aergo", bigIntFromString("10000000000000000"), nil},
 		{4, "0.01aergo", bigIntFromString("10000000000000000"), nil},
 		{4, "0.0000000001aergo", bigIntFromString("100000000"), nil},
+		{4, "0.000000000000000001aergo", bigIntFromString("1"), nil},
+		{4, "0.000000000000000123aergo", bigIntFromString("123"), nil},
+		{4, "0.000000000000000000aergo", bigIntFromString("0"), nil},
+		{4, "0.000000000000123000aergo", bigIntFromString("123000"), nil},
+		{4, "0.100000000000000123aergo", bigIntFromString("100000000000000123"), nil},
+		{4, "1.000000000000000123aergo", bigIntFromString("1000000000000000123"), nil},
+		{4, "123.456000000000000789aergo", bigIntFromString("123456000000000000789"), nil},
 
+		{4, "123.456 aergo", bigIntFromString("123456000000000000000"), nil},
+		{4, "123.4 aergo", bigIntFromString("123400000000000000000"), nil},
+		{4, "123. aergo", bigIntFromString("123000000000000000000"), nil},
+		{4, "100. aergo", bigIntFromString("100000000000000000000"), nil},
+		{4, "10. aergo", bigIntFromString("10000000000000000000"), nil},
+		{4, "1. aergo", bigIntFromString("1000000000000000000"), nil},
+		{4, "100.0 aergo", bigIntFromString("100000000000000000000"), nil},
+		{4, "10.0 aergo", bigIntFromString("10000000000000000000"), nil},
+		{4, "1.0 aergo", bigIntFromString("1000000000000000000"), nil},
+		{4, ".1 aergo", bigIntFromString("100000000000000000"), nil},
+		{4, "0.1 aergo", bigIntFromString("100000000000000000"), nil},
+		{4, ".01 aergo", bigIntFromString("10000000000000000"), nil},
+		{4, "0.01 aergo", bigIntFromString("10000000000000000"), nil},
+		{4, "0.0000000001 aergo", bigIntFromString("100000000"), nil},
+		{4, "0.000000000000000001 aergo", bigIntFromString("1"), nil},
+		{4, "0.000000000000000123 aergo", bigIntFromString("123"), nil},
+		{4, "0.000000000000000000 aergo", bigIntFromString("0"), nil},
+		{4, "0.000000000000123000 aergo", bigIntFromString("123000"), nil},
+		{4, "0.100000000000000123 aergo", bigIntFromString("100000000000000123"), nil},
+		{4, "1.000000000000000123 aergo", bigIntFromString("1000000000000000123"), nil},
+		{4, "123.456000000000000789 aergo", bigIntFromString("123456000000000000789"), nil},
+
+		{4, "0.0000000000000000001aergo", nil, errors.New("converting error for BigNum: 0.0000000000000000001aergo")},
 		{4, "0.000000000000000000000000001aergo", nil, errors.New("converting error for BigNum: 0.000000000000000000000000001aergo")},
+		{4, "0.000000000000000123000aergo", nil, errors.New("converting error for BigNum: 0.000000000000000123000aergo")},
+		{4, "0.0000000000000000000000aergo", nil, errors.New("converting error for BigNum: 0.0000000000000000000000aergo")},
+
+		{4, "0.0000000000000000001 aergo", nil, errors.New("converting error for BigNum: 0.0000000000000000001 aergo")},
+		{4, "0.000000000000000000000000001 aergo", nil, errors.New("converting error for BigNum: 0.000000000000000000000000001 aergo")},
+		{4, "0.000000000000000123000 aergo", nil, errors.New("converting error for BigNum: 0.000000000000000123000 aergo")},
+		{4, "0.0000000000000000000000 aergo", nil, errors.New("converting error for BigNum: 0.0000000000000000000000 aergo")},
 	}
 
 	for _, tt := range decimal_tests {