public void Test_WindowSizeDefault_AllRowsFitIntoWindowSize()
{
workbook = new SXSSFWorkbook();
sheet = workbook.CreateSheet() as SXSSFSheet;
sheet.TrackAllColumnsForAutoSizing();
ICell cellRow0 = CreateRowWithCellValues(sheet, 0, LONG_CELL_VALUE);
assumeRequiredFontsAreInstalled(workbook, cellRow0);
CreateRowWithCellValues(sheet, 1, SHORT_CELL_VALUE);
sheet.AutoSizeColumn(0, useMergedCells);
assertColumnWidthStrictlyWithinRange(sheet.GetColumnWidth(0), COLUMN_WIDTH_THRESHOLD_BETWEEN_SHORT_AND_LONG, MAX_COLUMN_WIDTH);
}
public void Test_WindowSizeEqualsOne_lastRowIsWidest()
{
workbook = new SXSSFWorkbook(null, 1); // Window size 1 so only last row will be in memory
sheet = workbook.CreateSheet() as SXSSFSheet;
sheet.TrackAllColumnsForAutoSizing();
ICell cellRow0 = CreateRowWithCellValues(sheet, 0, SHORT_CELL_VALUE);
assumeRequiredFontsAreInstalled(workbook, cellRow0);
CreateRowWithCellValues(sheet, 1, LONG_CELL_VALUE);
sheet.AutoSizeColumn(0, useMergedCells);
assertColumnWidthStrictlyWithinRange(sheet.GetColumnWidth(0), COLUMN_WIDTH_THRESHOLD_BETWEEN_SHORT_AND_LONG, MAX_COLUMN_WIDTH);
}
public void AutoSizeColumn_trackAllColumns_explicitUntrackColumn()
{
workbook = new SXSSFWorkbook();
sheet = workbook.CreateSheet() as SXSSFSheet;
sheet.TrackColumnsForAutoSizing(columns);
sheet.TrackAllColumnsForAutoSizing();
sheet.UntrackColumnForAutoSizing(0);
try
{
sheet.AutoSizeColumn(0, useMergedCells);
Assert.Fail("Should not be able to auto-size an explicitly untracked column");
}
catch (InvalidOperationException)
{
// expected
}
}
public void Test_WindowSizeEqualsOne_flushedRowHasMergedCell()
{
workbook = new SXSSFWorkbook(null, 1); // Window size 1 so only last row will be in memory
sheet = workbook.CreateSheet() as SXSSFSheet;
sheet.TrackAllColumnsForAutoSizing();
ICell a1 = CreateRowWithCellValues(sheet, 0, LONG_CELL_VALUE);
assumeRequiredFontsAreInstalled(workbook, a1);
sheet.AddMergedRegion(CellRangeAddress.ValueOf("A1:B1"));
CreateRowWithCellValues(sheet, 1, SHORT_CELL_VALUE, SHORT_CELL_VALUE);
/**
* A B
* 1 LONGMERGED
* 2 SHORT SHORT
*/
sheet.AutoSizeColumn(0, useMergedCells);
sheet.AutoSizeColumn(1, useMergedCells);
if (useMergedCells)
{
// Excel and LibreOffice behavior: ignore merged cells for auto-sizing.
// POI behavior: evenly distribute the column width among the merged columns.
// each column must be auto-sized in order for the column widths
// to add up to the best fit width.
int colspan = 2;
int expectedWidth = (10000 + 1000) / colspan; //average of 1_000 and 10_000
int minExpectedWidth = expectedWidth / 2;
int maxExpectedWidth = expectedWidth * 3 / 2;
assertColumnWidthStrictlyWithinRange(sheet.GetColumnWidth(0), minExpectedWidth, maxExpectedWidth); //short
}
else
{
assertColumnWidthStrictlyWithinRange(sheet.GetColumnWidth(0), COLUMN_WIDTH_THRESHOLD_BETWEEN_SHORT_AND_LONG, MAX_COLUMN_WIDTH); //long
}
assertColumnWidthStrictlyWithinRange(sheet.GetColumnWidth(1), 0, COLUMN_WIDTH_THRESHOLD_BETWEEN_SHORT_AND_LONG); //short
}
