wallet: assert BnB's internally calculated waste is the same as GetSelectionWaste #24530
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…ectionWaste() These two implementations of waste calculation should never deviate. Still keep the SelectCoinsBnB internal calculation because incremental calculate-as-you-go is much more performant than calling GetSelectionWaste() over and over again.
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At first, I thought it would be a good idea to use |
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ACK ec7d736 |
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I was wondering whether this would break when BnB does not find a solution, but realized that it returns earlier in this case. Change looks good to me.
ACK ec7d736
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#22009 introduced a
GetSelectionWaste()function to determine how much "waste" a coin selection solution has, and is a mirror of the waste calculated inside ofSelectCoinsBnB(). It would be bad for these two waste metrics to deviate, since it could negatively affect how often we select the BnB solution. Add an assertion to help tests catch a potential accidental change.