P140 sniperWinsAnAuctionByBiddingHigher
P141 Add tests:
notifiesBidDetailsWhenCurrentPriceMessageReceivedFromSniper
notifiesBidDetailsWhenCurrentPriceMessageReceivedFromOtherBidder
P142 All unit tests passed
P143 Add unit tests reportsIsWinningWhenCurrentPriceComesFromSniper
P143  Show sniper winning.
P144 The Sniper Acquires Some State
P147 Tests reportsWonIfAuctionClosesWhenWinning
P147 The Sniper Wins