public DesignSurfaceTest()
 {
     _helper = new DesignerTestHelper();
 }
 public ControlDesignerTest()
 {
     _helper = new DesignerTestHelper();
 }
 public DocumentDesignerTest()
 {
     _helper = new DesignerTestHelper();
 }
        public ComponentDesignerTest()
        {
#if NET_2_0
            _helper = new DesignerTestHelper();
#endif
        }