Bug 148181 Support deleting a directory from report document
Now Engine supports deleting a file from report document, and it would be nicer if deleting a directory could be also supported.
testsuites/org.eclipse.birt.report.tests.engine/src/org/eclipse/birt/report/tests/engine/api/RenderFolderDocumentTest.java
}
	
	public void test6(){
		String renderDoc="folderdocument_table_nest_pages";
		renderFolderDocument(renderDoc);
		
	}
	
	public void test7(){
		String renderDoc="folderdocument_chart";
		renderFolderDocument(renderDoc);
		
	}
	
	private void renderFolderDocument(String docName){
		
		IRunTask runTask;
		String designName, report_design;
		designName=docName.substring( 15 );
		report_design=INPUT+designName+".rptdesign";
		folderArchive=INPUT+docName+separator;
		htmlOutput=OUTPUT+docName+".html";
		try{
			FolderArchiveWriter writer=new FolderArchiveWriter(folderArchive);
			IReportRunnable runnable=engine.openReportDesign( report_design );
			runTask=engine.createRunTask( runnable );
			runTask.run( writer );
			
			FolderArchiveReader reader=new FolderArchiveReader(folderArchive);