src/testcases/org/apache/poi/ss/util/TestSheetUtil.java

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   (the "License"); you may not use this file except in compliance with
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package org.apache.poi.ss.util;

import java.io.IOException;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;

import junit.framework.TestCase;

/**
 * Tests SheetUtil.
 *
 * @see org.apache.poi.ss.util.SheetUtil
 */
public final class TestSheetUtil extends TestCase {
    public void testCellWithMerges() throws Exception {
        Workbook wb = new HSSFWorkbook();
        Sheet s = wb.createSheet();
        
        // Create some test data
        Row r2 = s.createRow(1);
        r2.createCell(0).setCellValue(10);
        r2.createCell(1).setCellValue(11);
        Row r3 = s.createRow(2);
        r3.createCell(0).setCellValue(20);
        r3.createCell(1).setCellValue(21);
        
        s.addMergedRegion(new CellRangeAddress(2, 3, 0, 0));
        s.addMergedRegion(new CellRangeAddress(2, 2, 1, 4));
        
        // With a cell that isn't defined, we'll get null
        assertEquals(null, SheetUtil.getCellWithMerges(s, 0, 0));
        
        // With a cell that's not in a merged region, we'll get that
        assertEquals(10.0, SheetUtil.getCellWithMerges(s, 1, 0).getNumericCellValue());
        assertEquals(11.0, SheetUtil.getCellWithMerges(s, 1, 1).getNumericCellValue());
        
        // With a cell that's the primary one of a merged region, we get that cell
        assertEquals(20.0, SheetUtil.getCellWithMerges(s, 2, 0).getNumericCellValue());
        assertEquals(21., SheetUtil.getCellWithMerges(s, 2, 1).getNumericCellValue());
        
        // With a cell elsewhere in the merged region, get top-left
        assertEquals(20.0, SheetUtil.getCellWithMerges(s, 3, 0).getNumericCellValue());
        assertEquals(21.0, SheetUtil.getCellWithMerges(s, 2, 2).getNumericCellValue());
        assertEquals(21.0, SheetUtil.getCellWithMerges(s, 2, 3).getNumericCellValue());
        assertEquals(21.0, SheetUtil.getCellWithMerges(s, 2, 4).getNumericCellValue());
        
        wb.close();
    }
    
    public void testCanComputeWidthHSSF() throws IOException {
        Workbook wb = new HSSFWorkbook();
        
        // cannot check on result because on some machines we get back false here!
        SheetUtil.canComputeColumnWidht(wb.getFontAt((short)0));

        wb.close();        
    }

    public void testGetCellWidthEmpty() throws IOException {
        Workbook wb = new HSSFWorkbook();
        Sheet sheet = wb.createSheet("sheet");
        Row row = sheet.createRow(0);
        Cell cell = row.createCell(0);
        
        // no contents: cell.setCellValue("sometext");
        
        assertEquals(-1.0, SheetUtil.getCellWidth(cell, 1, null, true));
        
        wb.close();
    }

    public void testGetCellWidthString() throws IOException {
        Workbook wb = new HSSFWorkbook();
        Sheet sheet = wb.createSheet("sheet");
        Row row = sheet.createRow(0);
        Cell cell = row.createCell(0);
        
        cell.setCellValue("sometext");
        
        assertTrue(SheetUtil.getCellWidth(cell, 1, null, true) > 0);
        
        wb.close();
    }

    public void testGetCellWidthNumber() throws IOException {
        Workbook wb = new HSSFWorkbook();
        Sheet sheet = wb.createSheet("sheet");
        Row row = sheet.createRow(0);
        Cell cell = row.createCell(0);
        
        cell.setCellValue(88.234);
        
        assertTrue(SheetUtil.getCellWidth(cell, 1, null, true) > 0);
        
        wb.close();
    }

    public void testGetCellWidthBoolean() throws IOException {
        Workbook wb = new HSSFWorkbook();
        Sheet sheet = wb.createSheet("sheet");
        Row row = sheet.createRow(0);
        Cell cell = row.createCell(0);
        
        cell.setCellValue(false);
        
        assertTrue(SheetUtil.getCellWidth(cell, 1, null, false) > 0);
        
        wb.close();
    }

    public void testGetColumnWidthString() throws IOException {
        Workbook wb = new HSSFWorkbook();
        Sheet sheet = wb.createSheet("sheet");
        Row row = sheet.createRow(0);
        sheet.createRow(1);
        sheet.createRow(2);
        Cell cell = row.createCell(0);
        
        cell.setCellValue("sometext");
        
        assertTrue("Having some width for rows with actual cells", 
                SheetUtil.getColumnWidth(sheet, 0, true) > 0);
        assertEquals("Not having any widht for rows with all empty cells", 
                -1.0, SheetUtil.getColumnWidth(sheet, 0, true, 1, 2));
        
        wb.close();
    }
}