Http://www.invivogen.com/promtest-pdrive use a plasmid with gfp reporter and transform into e coli simple option or directly transfect cells with plasmid (not sure about procedure)
Bio-rad provide an easy to use kit to transfect E. coli with the pGLO plasmid which include the gfp reporter. The plasmid give ampicillin resitance and the promoter is arabinose dependant.