poi/src/ooxml/testcases/org/apache/poi/xssf/extractor/TestXSSFEventBasedExcelExtractor.java

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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
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package org.apache.poi.xssf.extractor;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import junit.framework.TestCase;

import org.apache.poi.POITextExtractor;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.extractor.ExcelExtractor;
import org.apache.poi.xssf.XSSFTestDataSamples;

/**
 * Tests for {@link XSSFEventBasedExcelExtractor}
 */
public final class TestXSSFEventBasedExcelExtractor extends TestCase {


	private static final XSSFEventBasedExcelExtractor getExtractor(String sampleName) throws Exception {
		return new XSSFEventBasedExcelExtractor(XSSFTestDataSamples.
		      openSamplePackage(sampleName));
	}

	/**
	 * Get text out of the simple file
	 */
	public void testGetSimpleText() throws Exception {
		// a very simple file
	   XSSFEventBasedExcelExtractor extractor = getExtractor("sample.xlsx");
		extractor.getText();
		
		String text = extractor.getText();
		assertTrue(text.length() > 0);
		
		// Check sheet names
		assertTrue(text.startsWith("Sheet1"));
		assertTrue(text.endsWith("Sheet3\n"));
		
		// Now without, will have text
		extractor.setIncludeSheetNames(false);
		text = extractor.getText();
		String CHUNK1 =
			"Lorem\t111\n" + 
    		"ipsum\t222\n" + 
    		"dolor\t333\n" + 
    		"sit\t444\n" + 
    		"amet\t555\n" + 
    		"consectetuer\t666\n" + 
    		"adipiscing\t777\n" + 
    		"elit\t888\n" + 
    		"Nunc\t999\n";
		String CHUNK2 =
			"The quick brown fox jumps over the lazy dog\n" +
			"hello, xssf	hello, xssf\n" +
			"hello, xssf	hello, xssf\n" +
			"hello, xssf	hello, xssf\n" +
			"hello, xssf	hello, xssf\n";
		assertEquals(
				CHUNK1 + 
				"at\t4995\n" + 
				CHUNK2
				, text);
		
		// Now get formulas not their values
		extractor.setFormulasNotResults(true);
		text = extractor.getText();
		assertEquals(
				CHUNK1 +
				"at\tSUM(B1:B9)\n" + 
				CHUNK2, text);
		
		// With sheet names too
		extractor.setIncludeSheetNames(true);
		text = extractor.getText();
		assertEquals(
				"Sheet1\n" +
				CHUNK1 +
				"at\tSUM(B1:B9)\n" + 
				"rich test\n" +
				CHUNK2 +
				"Sheet3\n"
				, text);
	}
	
	public void testGetComplexText() throws Exception {
		// A fairly complex file
	   XSSFEventBasedExcelExtractor extractor = getExtractor("AverageTaxRates.xlsx");
		extractor.getText();
		
		String text = extractor.getText();
		assertTrue(text.length() > 0);
		
		// Might not have all formatting it should do!
		assertTrue(text.startsWith(
						"Avgtxfull\n" +
						"(iii) AVERAGE TAX RATES ON ANNUAL"	
		));
	}
	
	/**
	 * Test that we return pretty much the same as
	 *  ExcelExtractor does, when we're both passed
	 *  the same file, just saved as xls and xlsx
	 */
	public void testComparedToOLE2() throws Exception {
		// A fairly simple file - ooxml
	   XSSFEventBasedExcelExtractor ooxmlExtractor = getExtractor("SampleSS.xlsx");

		ExcelExtractor ole2Extractor =
			new ExcelExtractor(HSSFTestDataSamples.openSampleWorkbook("SampleSS.xls"));
		
		POITextExtractor[] extractors =
			new POITextExtractor[] { ooxmlExtractor, ole2Extractor };
		for (int i = 0; i < extractors.length; i++) {
			POITextExtractor extractor = extractors[i];
			
			String text = extractor.getText().replaceAll("[\r\t]", "");
			assertTrue(text.startsWith("First Sheet\nTest spreadsheet\n2nd row2nd row 2nd column\n"));
			Pattern pattern = Pattern.compile(".*13(\\.0+)?\\s+Sheet3.*", Pattern.DOTALL);
			Matcher m = pattern.matcher(text);
			assertTrue(m.matches());			
		}
	}
}