event.stopPropagation();

    testDragEndPropagation : function() {

      var dndSupport = org.eclipse.rwt.DNDSupport.getInstance();

      var testUtil = org.eclipse.rwt.test.fixture.TestUtil;

      var leftButton = qx.event.type.MouseEvent.buttons.left;

      var log = [];

      testUtil.getDocument().addEventListener( "dragend", function( event ) {

        log.push( event );

      } );

      var source = this.createSource();

      var node = source._getTargetNode();

      testUtil.fakeMouseEventDOM( node, "mousedown", leftButton, 11, 11 );

      testUtil.fakeMouseEventDOM( node, "mousemove", leftButton, 19, 19 );

      testUtil.fakeMouseEventDOM( node, "mouseup", leftButton, 19, 19 );

      assertEquals( 0, log.length );

      dndSupport.deregisterDragSource( source );

      source.destroy();

      testUtil.flush();

    },