poi/osgi/src/test/java/org/apache/poi/osgi/OSGiSpreadsheetIT.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.osgi;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.PaxExam;
import org.ops4j.pax.exam.spi.reactors.ExamReactorStrategy;
import org.ops4j.pax.exam.spi.reactors.PerClass;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

import static org.junit.Assert.assertEquals;

/**
 * Test to ensure that all our main formats can create, write
 * and read back in, when running under OSGi
 */
@RunWith(PaxExam.class)
@ExamReactorStrategy(PerClass.class)
public class OSGiSpreadsheetIT extends BaseOSGiTestCase {


    // create a workbook, validate and write back
    void testWorkbook(Workbook wb) throws Exception {
        Sheet s = wb.createSheet("OSGi");
        s.createRow(0).createCell(0).setCellValue("With OSGi");
        s.createRow(1).createCell(0).setCellFormula("SUM(A1:B3)");

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        wb.write(baos);
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

        wb = WorkbookFactory.create(bais);
        assertEquals(1, wb.getNumberOfSheets());

        s = wb.getSheet("OSGi");
        assertEquals("With OSGi", s.getRow(0).getCell(0).toString());
        assertEquals("SUM(A1:B3)", s.getRow(1).getCell(0).toString());


    }

    @Test
    public void testHSSF() throws Exception {
        testWorkbook(new HSSFWorkbook());
    }

    @Test
    public void testXSSF() throws Exception {
        testWorkbook(new XSSFWorkbook());
    }

    @Test
    public void testSXSSF() throws Exception {
        testWorkbook(new XSSFWorkbook());
    }

    @Test
    public void testFormulaEvaluation() throws Exception {
        testWorkbook(new XSSFWorkbook());
    }

}