fix tests for bufferreader
fix tests for bufferreader

lekkas/bitcore,MonetaryUnit/bitcore,GroestlCoin/groestlcore,TOMOAKI12345/bitcore,MonetaryUnit/bitcore,braydonf/bitcore,TeamPiggyCoin/PiggyCore,olalonde/bitcore,williamcotton/bitcore,bankonme/bitcore,bitpay/bitcore,martindale/bitcore,martindale/bitcore,eordano/bitcore,bitjson/bitcore,martindale/bitcore,maraoz/coinforge,pnagurny/bitcore,bilthon/bitcore,iobond/bitcore,eXcomm/bitcore,janko33bd/bitcore,bitjson/bitcore,iobond/bitcore,iobond/bitcore,martindale/bitcore,maraoz/coinforge,bitpay/bitcore,bilthon/bitcore,bitpay/bitcore,pnagurny/bitcore,adjoinant/bitcore,daxxog/clamcore,iobond/bitcore,daxxog/clamcore,bitjson/bitcore,adjoinant/bitcore,eXcomm/bitcore,litecoin-project/litecore,phplaboratory/bitcore,genecyber/bitcore,bankonme/bitcore,bitjson/bitcore,williamcotton/bitcore,braydonf/bitcore,eordano/bitcore,lekkas/bitcore,phplaboratory/bitcore,initaldk/bitcore,genecyber/bitcore,iobond/bitcore,janko33bd/bitcore,UdjinM6/bitcore-dash,TeamPiggyCoin/PiggyCore,jcvernaleo/bitcore,initaldk/bitcore,litecoin-project/litecore,TOMOAKI12345/bitcore,olalonde/bitcore,jcvernaleo/bitcore,bitpay/bitcore