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contains(pb2, 6, 2, 4) ; } @Test public void ptrbuffer24() { PtrBuffer pb1 = make(0,5) ; contains(pb1) ; PtrBuffer pb2 = make(5,5) ; contains(pb2, 2, 4, 6, 8, 10) ; pb1.shiftLeft(pb2) ; contains(pb1, 2) ; contains(pb2, 4, 6, 8, 10) ;