testrecordcontainer.java

来自「EXCEL read and write」· Java 代码 · 共 159 行

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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
   the License.  You may obtain a copy of the License at

       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 org.apache.poi.hslf.HSLFSlideShow;

/**
 * Tests that the helper methods on RecordContainer work properly
 *
 * @author Nick Burch (nick at torchbox dot com)
 */
public class TestRecordContainer extends TestCase {
	private RecordContainer recordContainer;

	public void testIsAnAtom() {
		assertFalse( recordContainer.isAnAtom() );
	}
	
	public void testAppendChildRecord() {
		// Grab records for testing with
		Record r = recordContainer.getChildRecords()[0];
		Record rb = recordContainer.getChildRecords()[1];
		Record rc = recordContainer.getChildRecords()[2];
		Record rd = recordContainer.getChildRecords()[3];
		
		// Start with an empty set
		Record[] rs = new Record[0];
		recordContainer._children = rs;
		recordContainer.appendChildRecord(r);
		Record[] nrs = recordContainer.getChildRecords();
		
		assertEquals(1, nrs.length);
		assertEquals(r, nrs[0]);
		
		// Now start with one with 3 entries
		rs = new Record[3];
		recordContainer._children = rs;
		rs[0] = rb;
		rs[1] = rc;
		rs[2] = rd;
		
		recordContainer.appendChildRecord(r);
		nrs = recordContainer.getChildRecords();
		
		assertEquals(4, nrs.length);
		assertEquals(rb, nrs[0]);
		assertEquals(rc, nrs[1]);
		assertEquals(rd, nrs[2]);
		assertEquals(r, nrs[3]);
	}
	
	public void testAddChildAfter() {
		// Working with new StyleTextPropAtom
		Record newRecord = new StyleTextPropAtom(0);
		
		// Try to add after a mid-record
		Record[] cr = recordContainer.getChildRecords();
		Record after = cr[2];
		Record before = cr[3];
		
		recordContainer.addChildAfter(newRecord, after);
		Record[] ncr = recordContainer.getChildRecords();
		
		assertEquals(cr.length+1, ncr.length);
		assertEquals(after, ncr[2]);
		assertEquals(newRecord, ncr[3]);
		assertEquals(before, ncr[4]);
		
		// Try again at the end
		recordContainer._children = cr;
		after = cr[cr.length-1];
		
		recordContainer.addChildAfter(newRecord, after);
		ncr = recordContainer.getChildRecords();
		
		assertEquals(cr.length+1, ncr.length);
		assertEquals(after, ncr[cr.length-1]);
		assertEquals(newRecord, ncr[cr.length]);
	}
	
	public void testAddChildBefore() {
		// Working with new StyleTextPropAtom
		Record newRecord = new StyleTextPropAtom(0);
		
		// Try to add before a mid-record
		Record[] cr = recordContainer.getChildRecords();
		Record before = cr[2];
		
		recordContainer.addChildBefore(newRecord, before);
		Record[] ncr = recordContainer.getChildRecords();
		
		assertEquals(cr.length+1, ncr.length);
		assertEquals(newRecord, ncr[2]);
		assertEquals(before, ncr[3]);
		
		
		// Try again at the end
		recordContainer._children = cr;
		before = cr[cr.length-1];
		
		recordContainer.addChildBefore(newRecord, before);
		ncr = recordContainer.getChildRecords();
		
		assertEquals(cr.length+1, ncr.length);
		assertEquals(newRecord, ncr[cr.length-1]);
		assertEquals(before, ncr[cr.length]);
		
		
		// And at the start
		recordContainer._children = cr;
		before = cr[0];
		
		recordContainer.addChildBefore(newRecord, before);
		ncr = recordContainer.getChildRecords();
		
		assertEquals(cr.length+1, ncr.length);
		assertEquals(newRecord, ncr[0]);
		assertEquals(before, ncr[1]);
	}
	
	protected void setUp() throws Exception {
		super.setUp();
		
		// Find a real RecordContainer record
		String dirname = System.getProperty("HSLF.testdata.path");
		String filename = dirname + "/basic_test_ppt_file.ppt";
		HSLFSlideShow hss = new HSLFSlideShow(filename);
		
		Record[] r = hss.getRecords();
		for(int i=0; i<r.length; i++) {
			if(r[i] instanceof RecordContainer) {
				recordContainer = (RecordContainer)r[i];
				return;
			}
		}
	}
}