testpoidocument.java

java 读写word excel ppt

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   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
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       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi;


import junit.framework.TestCase;
import java.io.*;

import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.poifs.filesystem.*;

/**
 * Tests that POIDocument correctly loads and saves the common
 *  (hspf) Document Properties
 *
 * @author Nick Burch (nick at torchbox dot com)
 */
public class TestPOIDocument extends TestCase {
	// The POI Documents to work on
	private POIDocument doc;
	private POIDocument doc2;
	// POIFS primed on the test (powerpoint and word) data
	private POIFSFileSystem pfs;
	private POIFSFileSystem pfs2;

	/**
	 * Set things up, using a PowerPoint document and 
	 *  a Word Document for our testing
	 */
    public void setUp() throws Exception {
		String dirnameHSLF = System.getProperty("HSLF.testdata.path");
		String filenameHSLF = dirnameHSLF + "/basic_test_ppt_file.ppt";
		String dirnameHWPF = System.getProperty("HWPF.testdata.path");
		String filenameHWPF = dirnameHWPF + "/test2.doc";
		
		FileInputStream fisHSLF = new FileInputStream(filenameHSLF);
		pfs = new POIFSFileSystem(fisHSLF);
		doc = new HSLFSlideShow(pfs);
		
		FileInputStream fisHWPF = new FileInputStream(filenameHWPF);
		pfs2 = new POIFSFileSystem(fisHWPF);
		doc2 = new HWPFDocument(pfs2);
	}
    
    public void testReadProperties() throws Exception {
    	// We should have both sets
    	assertNotNull(doc.getDocumentSummaryInformation());
    	assertNotNull(doc.getSummaryInformation());
    	
    	// Check they are as expected for the test doc
    	assertEquals("Hogwarts", doc.getSummaryInformation().getAuthor());
    	assertEquals(10598, doc.getDocumentSummaryInformation().getByteCount());
    }
    	
    public void testReadProperties2() throws Exception {	
    	// Check again on the word one
    	assertNotNull(doc2.getDocumentSummaryInformation());
    	assertNotNull(doc2.getSummaryInformation());
    	
    	assertEquals("Hogwarts", doc2.getSummaryInformation().getAuthor());
    	assertEquals("", doc2.getSummaryInformation().getKeywords());
    	assertEquals(0, doc2.getDocumentSummaryInformation().getByteCount());
    }

    public void testWriteProperties() throws Exception {
    	// Just check we can write them back out into a filesystem
    	POIFSFileSystem outFS = new POIFSFileSystem();
    	doc.writeProperties(outFS);
    	
    	// Should now hold them
    	assertNotNull(
    			outFS.createDocumentInputStream("\005SummaryInformation")
    	);
    	assertNotNull(
    			outFS.createDocumentInputStream("\005DocumentSummaryInformation")
    	);
    }

    public void testWriteReadProperties() throws Exception {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		
    	// Write them out
    	POIFSFileSystem outFS = new POIFSFileSystem();
    	doc.writeProperties(outFS);
    	outFS.writeFilesystem(baos);
    	
    	// Create a new version
    	ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    	POIFSFileSystem inFS = new POIFSFileSystem(bais);
    	
    	// Check they're still there
    	doc.filesystem = inFS;
    	doc.readProperties();
    	
    	// Delegate test
    	testReadProperties();
    }
}