testtextcharsatom.java

java 读写word excel ppt

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

   Unless required by applicable law or agreed to in writing, software
   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
   limitations under the License.
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package org.apache.poi.hslf.record;


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

/**
 * Tests that TextCharsAtom works properly
 *
 * @author Nick Burch (nick at torchbox dot com)
 */
public class TestTextCharsAtom extends TestCase {
	// From a real file
	private byte[] data = new byte[]  { 0, 0, 0xA0-256, 0x0f, 0x08, 0, 0, 0, 
		0x54, 0x00, 0x68, 0x00, 0x69, 0x00, 0x73, 0x00 };
	private String data_text = "This";
	private byte[] alt_data = new byte[] { 0, 0, 0xA0-256, 0x0F, 0x0a, 0, 0, 0,
		0x54, 0x00, 0x68, 0x00, 0x69, 0x00, 0x73, 0x00, 0xa3-256, 0x01 };
	private String alt_text = "This\u01A3";

    public void testRecordType() throws Exception {
		TextCharsAtom tca = new TextCharsAtom(data,0,data.length);
		assertEquals(4000l, tca.getRecordType());
	}

	public void testTextA() throws Exception {
		TextCharsAtom tca = new TextCharsAtom(data,0,data.length);
		assertEquals(data_text, tca.getText());
	}
	public void testTextB() throws Exception {
		TextCharsAtom tca = new TextCharsAtom(alt_data,0,alt_data.length);
		assertEquals(alt_text, tca.getText());
	}

	public void testChangeText() throws Exception {
		TextCharsAtom tca = new TextCharsAtom(data,0,data.length);
		tca.setText(alt_text);

		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		tca.writeOut(baos);
		byte[] b = baos.toByteArray();

		// Compare the header and the text
		assertEquals(alt_data.length, b.length);
		for(int i=0; i<alt_data.length; i++) {
			assertEquals(alt_data[i],b[i]);
		}
	}
	
	public void testWrite() throws Exception {
		TextCharsAtom tca = new TextCharsAtom(data,0,data.length);
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		tca.writeOut(baos);
		byte[] b = baos.toByteArray();

		assertEquals(data.length, b.length);
		for(int i=0; i<data.length; i++) {
			assertEquals(data[i],b[i]);
		}
	}
	
	public void testCreateNew() throws Exception {
		TextCharsAtom tca = new TextCharsAtom();
		assertEquals(0, tca.getText().length());
		
		tca.setText(data_text);
		assertEquals(data_text, tca.getText());
		
		// Check it's now like data
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		tca.writeOut(baos);
		byte[] b = baos.toByteArray();

		assertEquals(data.length, b.length);
		for(int i=0; i<data.length; i++) {
			assertEquals(data[i],b[i]);
		}
	}

}