When a high school football team rolls through its league and goes undefeated into the playoffs, there’s cause for concern when it faces its first big test in the postseason.Grace Brethren passed the test it was given by St. Anthony of Long Beach with flying colors Friday night.Andre Bannister scored on a 7-yard run with two seconds left at Moorpark College to give Grace a 41-38 win in the CIF-Southern Section East Valley Division semifinalsThe Lancers (13-0) will play in the final next Saturday against St.