src/ooxml/testcases/org/apache/poi/xssf/XSSFITestDataProvider.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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       http://www.apache.org/licenses/LICENSE-2.0

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package org.apache.poi.xssf;

import org.apache.poi.POIDataSamples;
import org.apache.poi.ss.ITestDataProvider;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 * @author Yegor Kozlov
 */
public final class XSSFITestDataProvider implements ITestDataProvider {
    public static final XSSFITestDataProvider instance = new XSSFITestDataProvider();

    private XSSFITestDataProvider() {
        // enforce singleton
    }

    public XSSFWorkbook openSampleWorkbook(String sampleFileName) {
        return XSSFTestDataSamples.openSampleWorkbook(sampleFileName);
    }

    public XSSFWorkbook writeOutAndReadBack(Workbook original) {
        if(!(original instanceof XSSFWorkbook)) {
            throw new IllegalArgumentException("Expected an instance of XSSFWorkbook, but had " + original.getClass());
        }
        return XSSFTestDataSamples.writeOutAndReadBack((XSSFWorkbook)original);
    }

    public XSSFWorkbook createWorkbook(){
        return new XSSFWorkbook();
    }
    
    public FormulaEvaluator createFormulaEvaluator(Workbook wb) {
        return new XSSFFormulaEvaluator((XSSFWorkbook) wb);
    }

    public byte[] getTestDataFileContent(String fileName) {
        return POIDataSamples.getSpreadSheetInstance().readFile(fileName);
    }

    public SpreadsheetVersion getSpreadsheetVersion(){
        return SpreadsheetVersion.EXCEL2007;
    }

    public String getStandardFileNameExtension() {
        return "xlsx";
    }
}