testeventworkbookbuilder.java

来自「EXCEL read and write」· Java 代码 · 共 164 行

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   this work for additional information regarding copyright ownership.
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package org.apache.poi.hssf.eventusermodel;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;

import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.eventusermodel.EventWorkbookBuilder.SheetRecordCollectingListener;
import org.apache.poi.hssf.model.HSSFFormulaParser;
import org.apache.poi.hssf.model.Workbook;
import org.apache.poi.hssf.record.FormulaRecord;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.formula.Ptg;
import org.apache.poi.hssf.record.formula.Ref3DPtg;
import org.apache.poi.hssf.usermodel.HSSFEvaluationWorkbook;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
/**
 * Tests for {@link EventWorkbookBuilder}
 */
public final class TestEventWorkbookBuilder extends TestCase {
	private MockHSSFListener mockListen;
	private SheetRecordCollectingListener listener;
	
	public void setUp() {
		HSSFRequest req = new HSSFRequest();
		mockListen = new MockHSSFListener();
		listener = new SheetRecordCollectingListener(mockListen);
		req.addListenerForAllRecords(listener);
		
		HSSFEventFactory factory = new HSSFEventFactory();
		try {
			InputStream is = HSSFTestDataSamples.openSampleFileStream("3dFormulas.xls");
			POIFSFileSystem fs = new POIFSFileSystem(is);
			factory.processWorkbookEvents(req, fs);
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	} 
	
	public void testBasics() {
		assertNotNull(listener.getSSTRecord());
		assertNotNull(listener.getBoundSheetRecords());
		assertNotNull(listener.getExternSheetRecords());
	}
	
	public void testGetStubWorkbooks() {
		assertNotNull(listener.getStubWorkbook());
		assertNotNull(listener.getStubHSSFWorkbook());
	}
	
	public void testContents() {
		assertEquals(2, listener.getSSTRecord().getNumStrings());
		assertEquals(3, listener.getBoundSheetRecords().length);
		assertEquals(1, listener.getExternSheetRecords().length);
		
		assertEquals(3, listener.getStubWorkbook().getNumSheets());
		
		Workbook ref = listener.getStubWorkbook();
		assertEquals("Sh3", ref.findSheetNameFromExternSheet(0));
		assertEquals("Sheet1", ref.findSheetNameFromExternSheet(1));
		assertEquals("S2", ref.findSheetNameFromExternSheet(2));
	}
	
	public void testFormulas() {
		
		FormulaRecord[] fRecs = mockListen.getFormulaRecords();
		
		// Check our formula records
		assertEquals(6, fRecs.length);
		
		Workbook stubWB = listener.getStubWorkbook();
		assertNotNull(stubWB);
		HSSFWorkbook stubHSSF = listener.getStubHSSFWorkbook();
		assertNotNull(stubHSSF);
		
		// Check these stubs have the right stuff on them
		assertEquals("Sheet1", stubWB.getSheetName(0));
		assertEquals("S2", stubWB.getSheetName(1));
		assertEquals("Sh3", stubWB.getSheetName(2));
		
		// Check we can get the formula without breaking
		for(int i=0; i<fRecs.length; i++) {
			HSSFFormulaParser.toFormulaString(stubHSSF, fRecs[i].getParsedExpression());
		}
		
		// Peer into just one formula, and check that
		//  all the ptgs give back the right things
		Ptg[] ptgs = fRecs[0].getParsedExpression();
		assertEquals(1, ptgs.length);
		assertTrue(ptgs[0] instanceof Ref3DPtg);
		
		Ref3DPtg ptg = (Ref3DPtg)ptgs[0];
		HSSFEvaluationWorkbook book = HSSFEvaluationWorkbook.create(stubHSSF);
		assertEquals("Sheet1!A1", ptg.toFormulaString(book));
		
		
		// Now check we get the right formula back for
		//  a few sample ones
		FormulaRecord fr;
		
		// Sheet 1 A2 is on same sheet
		fr = fRecs[0];
		assertEquals(1, fr.getRow());
		assertEquals(0, fr.getColumn());
		assertEquals("Sheet1!A1", HSSFFormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
		
		// Sheet 1 A5 is to another sheet
		fr = fRecs[3];
		assertEquals(4, fr.getRow());
		assertEquals(0, fr.getColumn());
		assertEquals("'S2'!A1", HSSFFormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
		
		// Sheet 1 A7 is to another sheet, range
		fr = fRecs[5];
		assertEquals(6, fr.getRow());
		assertEquals(0, fr.getColumn());
		assertEquals("SUM(Sh3!A1:A4)", HSSFFormulaParser.toFormulaString(stubHSSF, fr.getParsedExpression()));
		
		
		// Now, load via Usermodel and re-check
		HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("3dFormulas.xls");
		assertEquals("Sheet1!A1", wb.getSheetAt(0).getRow(1).getCell(0).getCellFormula());
		assertEquals("SUM(Sh3!A1:A4)", wb.getSheetAt(0).getRow(6).getCell(0).getCellFormula());
	}
	
	private static final class MockHSSFListener implements HSSFListener {
		public MockHSSFListener() {}
		private final List _records = new ArrayList();
		private final List _frecs = new ArrayList();

		public void processRecord(Record record) {
			_records.add(record);
			if(record instanceof FormulaRecord) {
				_frecs.add(record);
			}
		}
		public FormulaRecord[] getFormulaRecords() {
			FormulaRecord[] result = new FormulaRecord[_frecs.size()];
			_frecs.toArray(result);
			return result;
		}
	}
}