Rounding error when determining fee for Contract Transaction

[jimtendo]

[In ](

cashscript/packages/cashscript/src/Transaction.ts

Line 325 in 123e45a

fee = Math.ceil(fee);

) the following line can sometimes lead to an incorrect fee as it does a Math.ceil on the value.

This means that if JS's Math engine, for example, gave a result of something like 620.00000001 in the preceding math, the Math.ceil() would round this up to 621, causing an off-by-one error.

Math.round() will probably resolve this as, even with JS Math's inconsistencies, it should always round back to the correct target integer.