Bug 188829 Move the item ,the trans of the model don't close.
1:New report design. 2:Add a Embedded image. 3:Add another imge , then drag the second imge to the first position. 4:Change the size of the first image. Expected: Image change the size. Now: Image size don't change.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/command/ContentCommandTest.java
contentHandle.moveTo( designHandle, ReportDesign.COMPONENT_SLOT );
		assertEquals( MyContentListener.MOVED, containerListener.action );
		assertEquals( contentHandle.getElement( ),
				( (ContentEvent) containerListener.event ).getContent( ) );
		
		MyContentListener contentListener = new MyContentListener( );
		
		contentHandle.addListener( contentListener );
		designHandle.getComponents( ).dropAndClear( contentHandle );
		assertEquals( MyContentListener.REMOVED, containerListener.action );
		assertNull( contentListener.event );
		assertEquals( contentHandle.getElement( ),
				( (ContentEvent) containerListener.event ).getContent( ) );
		assertTrue( containerListener.event instanceof ContentEvent );
		assertEquals( containerListener.action, ContentEvent.REMOVE );
		assertTrue( containerListener.content == contentHandle.getElement( ) );
	}
	/**
	 * 
	 * @throws SemanticException
	 */
	public void testSendNotificationBeforeDeletion( ) throws SemanticException
	{
		DataSetHandle dataSet = factory.newOdaDataSet( "dataSet", null ); 
		DataSourceHandle dataSource = factory.newOdaDataSource(
				"dataSource", null ); 
		designHandle.getDataSets( ).add( dataSet );
		designHandle.getDataSources( ).add( dataSource );
		dataSet.setDataSource( "dataSource" );