Options options = new Options();
options.setScreenSize( this.trebleScreenSize );
PositionAssignmentLimbRefiner testObj = new PositionAssignmentLimbRefiner();
testObj.refine( limb, this.defaultView, options );
assertNotNull( limb.getPosition() );
Geometry position = limb.getPosition();
assertTrue( position instanceof Point );
assertEquals( expectedScreenX, ((Point)position).getCoordinate().x, DOUBLE_TOLERANCE );