testoffice2007xmlexception.java

介绍java核心技术的pio编程方法以及基本概念

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       http://www.apache.org/licenses/LICENSE-2.0

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   See the License for the specific language governing permissions and
   limitations under the License.
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package org.apache.poi.poifs.filesystem;

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

/**
 * Class to test that POIFS complains when given an Office 2007 XML document
 *
 * @author Marc Johnson
 */

public class TestOffice2007XMLException extends TestCase
{
	public String dirname;

	public void setUp() {
		dirname = System.getProperty("HSSF.testdata.path");
	}

	public void testXMLException() throws IOException
	{
		FileInputStream in = new FileInputStream(dirname + "/sample.xlsx");

		try {
			new POIFSFileSystem(in);
			fail();
		} catch(OfficeXmlFileException e) {
			// Good
		}
	}
	
	public void testDetectAsPOIFS() throws IOException {
		InputStream in;
		
		// ooxml file isn't
		in = new PushbackInputStream(
				new FileInputStream(dirname + "/SampleSS.xlsx"), 10
		);
		assertFalse(POIFSFileSystem.hasPOIFSHeader(in));
		
		// xls file is
		in = new PushbackInputStream(
				new FileInputStream(dirname + "/SampleSS.xls"), 10
		);
		assertTrue(POIFSFileSystem.hasPOIFSHeader(in));
		
		// text file isn't
		in = new PushbackInputStream(
				new FileInputStream(dirname + "/SampleSS.txt"), 10
		);
		assertFalse(POIFSFileSystem.hasPOIFSHeader(in));
	}
}