add unittest doesNotBidAndReportsLosingIfFirstPriceIsAboveStopPrice
add unittest reportsLostIfAuctionClosesWhenLosing
add unittest continuesToBeLosingOnceStopPriceHasBeenReached
add unittest doesNotBidAndReportsLosingIfPriceAfterWinningIsAboveStopPrice
pass end-to-end test sniperLosesAnAuctionWhenThePriceTooHigh