ointer down and the pointer is captured,
            // no other mousedown should send pointerdown events during the test
            assert_equals(currentPhase, PhaseEnum.WaitingForDown,
              "Current Phase should be " + PhaseEnum.WaitingForDown);
            currentPhase = PhaseEnum.WaitingForUp;
            events.push("target@pointerdown");
          });
        }
        origin = { x: event.clientX, y: event.clientY };
        box.addEventListener("pointermove", slide);
      }

      function