Add test for []byte(nil)
Add test for []byte(nil)

Also reordered the tests so that the general tests are on top

cw2018/mysql,Go-SQL-Driver/MySQL,eXcomm/gomysql,dalinaum/go-mysql-driver,helight/helight_code,helight/helight_code,beego/mysql,chinanjjohn2012/mysql,zhgo/mysql,VividCortex/mysql,VividCortex/mysql,helight/helight_code,Frca/mysql,nanata1115/mysql,jockchou/mysql,helight/helight_code,helight/helight_code,helight/helight_code,hebihui/mysql,hyperworks/mysql,LightKool/mysql-go,aperera/mysql,rafaeljusto/mysql,tmulchay/mysql,joshuaprunier/mysql,go-sql-driver/mysql,helight/helight_code,roth1002/mysql,muthusubbu459/mysql,segmentio/mysql,cxflag203/mysql,Vorstack/mysql,bookerzzz/mysql,springning/mysql,eklitzke/mysql,siriele/mysql,methane/mysql,segmentio/mysql,sunjian1/mysql,helight/helight_code,methane/mysql,henrylee2cn/mysql,rlowe/mysql,bookerzzz/mysql,helight/helight_code,netroby/mysql,LightKool/mysql-go,Freeaqingme/golang-sql-driver-mysql,yonglehou/mysql,wfxiang08/mysql,yyljlyy/mysql