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

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.util.TempFile;
import org.apache.poi.xssf.XSSFTestDataSamples;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.junit.jupiter.api.Test;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTable;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumn;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableStyleInfo;

import static org.junit.jupiter.api.Assertions.*;

public final class TestXSSFTable {

    @Test
    void bug56274() throws IOException {
        // read sample file
        try (XSSFWorkbook wb1 = XSSFTestDataSamples.openSampleWorkbook("56274.xlsx")) {

            // read the original sheet header order
            XSSFRow row = wb1.getSheetAt(0).getRow(0);
            List<String> headers = new ArrayList<>();
            for (Cell cell : row) {
                headers.add(cell.getStringCellValue());
            }

            // save the worksheet as-is using SXSSF
            File outputFile = TempFile.createTempFile("poi-56274", ".xlsx");
            SXSSFWorkbook outputWorkbook = new SXSSFWorkbook(wb1);
            FileOutputStream fos = new FileOutputStream(outputFile);
            outputWorkbook.write(fos);
            fos.close();
            outputWorkbook.close();

            // re-read the saved file and make sure headers in the xml are in the original order
            FileInputStream fis = new FileInputStream(outputFile);
            XSSFWorkbook wb2 = new XSSFWorkbook(fis);
            fis.close();
            CTTable ctTable = wb2.getSheetAt(0).getTables().get(0).getCTTable();
            CTTableColumn[] ctTableColumnArray = ctTable.getTableColumns().getTableColumnArray();

            assertEquals(headers.size(), ctTableColumnArray.length,
                "number of headers in xml table should match number of header cells in worksheet");
            for (int i = 0; i < headers.size(); i++) {
                assertEquals(headers.get(i), ctTableColumnArray[i].getName(),
                    "header name in xml table should match number of header cells in worksheet");
            }
            assertTrue(outputFile.delete());
            wb2.close();
        }
    }

    @Test
    void testCTTableStyleInfo() throws IOException {
        try (XSSFWorkbook outputWorkbook = new XSSFWorkbook()) {
            XSSFSheet sheet = outputWorkbook.createSheet();

            //Create
            XSSFTable outputTable = sheet.createTable(null);
            outputTable.setDisplayName("Test");
            CTTable outputCTTable = outputTable.getCTTable();

            //Style configurations
            CTTableStyleInfo outputStyleInfo = outputCTTable.addNewTableStyleInfo();
            outputStyleInfo.setName("TableStyleLight1");
            outputStyleInfo.setShowColumnStripes(false);
            outputStyleInfo.setShowRowStripes(true);

            try (XSSFWorkbook inputWorkbook = XSSFTestDataSamples.writeOutAndReadBack(outputWorkbook)) {
                List<XSSFTable> tables = inputWorkbook.getSheetAt(0).getTables();
                assertEquals(1, tables.size(), "Tables number");

                XSSFTable inputTable = tables.get(0);
                assertEquals(outputTable.getDisplayName(), inputTable.getDisplayName(), "Table display name");

                CTTableStyleInfo inputStyleInfo = inputTable.getCTTable().getTableStyleInfo();
                assertEquals(outputStyleInfo.getName(), inputStyleInfo.getName(), "Style name");
                assertEquals(outputStyleInfo.getShowColumnStripes(), inputStyleInfo.getShowColumnStripes(), "Show column stripes");
                assertEquals(outputStyleInfo.getShowRowStripes(), inputStyleInfo.getShowRowStripes(), "Show row stripes");
            }
        }
    }

    @Test
    void findColumnIndex() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {

            XSSFTable table = wb.getTable("\\_Prime.1");
            assertNotNull(table);
            assertEquals(0, table.findColumnIndex("calc='#*'#"), "column header has special escaped characters");
            assertEquals(1, table.findColumnIndex("Name"));
            assertEquals(2, table.findColumnIndex("Number"));

            assertEquals(2, table.findColumnIndex("NuMbEr"), "case insensitive");

            // findColumnIndex should return -1 if no column header name matches
            assertEquals(-1, table.findColumnIndex(null));
            assertEquals(-1, table.findColumnIndex(""));
            assertEquals(-1, table.findColumnIndex("one"));
        }
    }

    @Test
    void findColumnIndexIsRelativeToTableNotSheet() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("DataTableCities.xlsx")) {
            XSSFTable table = wb.getTable("SmallCity");

            // Make sure that XSSFTable.findColumnIndex returns the column index relative to the first
            // column in the table, not the column number in the sheet
            assertEquals(0, table.findColumnIndex("City")); // column I in worksheet but 0th column in table
            assertEquals(1, table.findColumnIndex("Latitude"));
            assertEquals(2, table.findColumnIndex("Longitude"));
            assertEquals(3, table.findColumnIndex("Population"));
        }
    }

    @Test
    void getSheetName() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals("Table", table.getSheetName());
        }
    }

    @Test
    void isHasTotalsRow() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertFalse(table.getTotalsRowCount() > 0);
        }
    }

    @Test
    void getStartColIndex() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(0, table.getStartColIndex());
        }
    }

    @Test
    void getEndColIndex() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(2, table.getEndColIndex());
        }
    }

    @Test
    void getStartRowIndex() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(0, table.getStartRowIndex());
        }
    }

    @Test
    void getEndRowIndex() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(6, table.getEndRowIndex());
        }
    }

    @Test
    void getStartCellReference() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(new CellReference("A1"), table.getStartCellReference());
        }
    }

    @Test
    void getEndCellReference() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(new CellReference("C7"), table.getEndCellReference());
        }
    }

    @Test
    void getEndCellReferenceFromSingleCellTable() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("SingleCellTable.xlsx")) {
            XSSFTable table = wb.getTable("Table3");
            assertEquals(new CellReference("A2"), table.getEndCellReference());
        }
    }

    @Test
    void getColumnCount() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals(3, table.getColumnCount());
        }
    }

    @Test
    void getAndSetDisplayName() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("StructuredReferences.xlsx")) {
            XSSFTable table = wb.getTable("\\_Prime.1");
            assertEquals("\\_Prime.1", table.getDisplayName());

            table.setDisplayName("Display name");
            assertEquals("Display name", table.getDisplayName());
            assertEquals("\\_Prime.1", table.getName()); // name and display name are different
        }
    }

    @Test
    void getCellReferences() throws IOException {
        // make sure that cached start and end cell references
        // can be synchronized with the underlying CTTable
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();
            XSSFTable table = sh.createTable(null);
            assertNotNull(table.getDisplayName());
            assertNotNull(table.getCTTable().getDisplayName());
            CTTable ctTable = table.getCTTable();
            ctTable.setRef("B2:E8");

            assertEquals(new CellReference("B2"), table.getStartCellReference());
            assertEquals(new CellReference("E8"), table.getEndCellReference());

            // At this point start and end cell reference are cached
            // and may not follow changes to the underlying CTTable
            ctTable.setRef("C1:M3");

            assertEquals(new CellReference("B2"), table.getStartCellReference());
            assertEquals(new CellReference("E8"), table.getEndCellReference());

            // Force a synchronization between CTTable and XSSFTable
            // start and end cell references
            table.updateReferences();

            assertEquals(new CellReference("C1"), table.getStartCellReference());
            assertEquals(new CellReference("M3"), table.getEndCellReference());
        }
    }

    @Test
    void getRowCount() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();
            XSSFTable table = sh.createTable(null);
            CTTable ctTable = table.getCTTable();

            assertEquals(0, table.getRowCount());

            ctTable.setRef("B2:B2");
            // update cell references to clear the cache
            table.updateReferences();
            assertEquals(1, table.getRowCount());

            ctTable.setRef("B2:B12");
            // update cell references to clear the cache
            table.updateReferences();
            assertEquals(11, table.getRowCount());
        }
    }

    @Test
    void testGetDataRowCount() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();
            AreaReference tableArea = new AreaReference("B2:B6", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            assertEquals(5, table.getRowCount()); // includes column header
            assertEquals(4, table.getDataRowCount());

            table.setArea(new AreaReference("B2:B7", wb.getSpreadsheetVersion()));

            assertEquals(6, table.getRowCount());
            assertEquals(5, table.getDataRowCount());
        }
    }

    @Test
    void testSetDataRowCount() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();

            // 1 header row + 1 data row
            AreaReference tableArea = new AreaReference("C10:C11", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            assertEquals(2, table.getRowCount()); // includes all data and header/footer rows

            assertEquals(1, table.getHeaderRowCount());
            assertEquals(1, table.getDataRowCount());
            assertEquals(0, table.getTotalsRowCount());

            table.setDataRowCount(5);

            assertEquals(6, table.getRowCount());

            assertEquals(1, table.getHeaderRowCount());
            assertEquals(5, table.getDataRowCount());
            assertEquals(0, table.getTotalsRowCount());

            assertEquals("C10:C15", table.getArea().formatAsString());
        }
    }

    @Test
    void testCreateTableIds() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sheet = wb.createSheet();

            AreaReference reference1 = wb.getCreationHelper().createAreaReference(
                    new CellReference(0, 0), new CellReference(2, 2));

            XSSFTable table1 = sheet.createTable(reference1);
            assertEquals("A1:C3", table1.getCTTable().getRef());
            assertNotNull(table1.getDisplayName());
            assertNotNull(table1.getCTTable().getDisplayName());

            assertEquals(1, table1.getCTTable().getTableColumns().getTableColumnArray(0).getId());
            assertEquals(2, table1.getCTTable().getTableColumns().getTableColumnArray(1).getId());
            assertEquals(3, table1.getCTTable().getTableColumns().getTableColumnArray(2).getId());

            assertEquals(1, table1.getCTTable().getId());

            AreaReference reference2 = wb.getCreationHelper().createAreaReference(
                    new CellReference(10, 10), new CellReference(12, 12));

            XSSFTable table2 = sheet.createTable(reference2);
            assertEquals("K11:M13", table2.getCTTable().getRef());

            // these IDs duplicate those from table1 and may be cause of https://bz.apache.org/bugzilla/show_bug.cgi?id=62906
            assertEquals(1, table2.getCTTable().getTableColumns().getTableColumnArray(0).getId());
            assertEquals(2, table2.getCTTable().getTableColumns().getTableColumnArray(1).getId());
            assertEquals(3, table2.getCTTable().getTableColumns().getTableColumnArray(2).getId());

            assertEquals(2, table2.getCTTable().getId());
        }
    }

    @Test
    void testSetArea() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();

            AreaReference tableArea = new AreaReference("B10:D12", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            assertEquals(3, table.getColumnCount());
            assertEquals(3, table.getRowCount());

            // move table without resizing, shouldn't change row or column count
            AreaReference tableArea2 = new AreaReference("B11:D13", wb.getSpreadsheetVersion());
            table.setArea(tableArea2);

            assertEquals(3, table.getColumnCount());
            assertEquals(3, table.getRowCount());

            // increase size by 1 row and 1 column
            AreaReference tableArea3 = new AreaReference("B11:E14", wb.getSpreadsheetVersion());
            table.setArea(tableArea3);

            assertEquals(4, table.getColumnCount());
            assertEquals(4, table.getRowCount());

            // reduce size by 2 rows and 2 columns
            AreaReference tableArea4 = new AreaReference("C12:D13", wb.getSpreadsheetVersion());
            table.setArea(tableArea4);

            assertEquals(2, table.getColumnCount());
            assertEquals(2, table.getRowCount());
        }
    }

    @Test
    void testCreateColumn() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();

            AreaReference tableArea = new AreaReference("A2:A3", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            assertEquals(1, table.getColumnCount());
            assertEquals(2, table.getRowCount());

            // add columns
            XSSFTableColumn c1 = table.getColumns().get(0);
            XSSFTableColumn cB = table.createColumn("Column B");
            XSSFTableColumn cD = table.createColumn("Column D");
            XSSFTableColumn cC = table.createColumn("Column C", 2); // add between B and D
            table.updateReferences();
            table.updateHeaders();

            assertEquals(4, table.getColumnCount());
            assertEquals(2, table.getRowCount());

            // column IDs start at 1, and increase in the order columns are added (see bug #62740)
            assertEquals(1, c1.getId(), "Column c ID");
            assertTrue  (c1.getId() < cB.getId(), "Column B ID");
            assertTrue  (cB.getId() < cD.getId(), "Column D ID");
            assertTrue  (cD.getId() < cC.getId(), "Column C ID");
            // generated name
            assertEquals("Column 1", table.getColumns().get(0).getName());
            assertEquals("Column B", table.getColumns().get(1).getName());
            assertEquals("Column C", table.getColumns().get(2).getName());
            assertEquals("Column D", table.getColumns().get(3).getName());
        }
    }

    @Test
    void testCreateColumnInvalidIndex() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();
            AreaReference tableArea = new AreaReference("D2:D3", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            // add columns
            table.createColumn("Column 2", 1);
            // out of bounds
            assertThrows(IllegalArgumentException.class, () -> table.createColumn("Column 3", 3));
        }
    }

    @Test
    void testDifferentHeaderTypes() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("TablesWithDifferentHeaders.xlsx")) {
            assertEquals(3, wb.getNumberOfSheets());
            XSSFSheet s;
            XSSFTable t;

            // TODO Nicer column fetching

            s = wb.getSheet("IntHeaders");
            assertEquals(1, s.getTables().size());
            t = s.getTables().get(0);
            assertEquals("A1:B2", t.getCellReferences().formatAsString());
            assertEquals("12", t.getCTTable().getTableColumns().getTableColumnArray(0).getName());
            assertEquals("34", t.getCTTable().getTableColumns().getTableColumnArray(1).getName());

            s = wb.getSheet("FloatHeaders");
            assertEquals(1, s.getTables().size());
            t = s.getTables().get(0);
            assertEquals("A1:B2", t.getCellReferences().formatAsString());
            assertEquals("12.34", t.getCTTable().getTableColumns().getTableColumnArray(0).getName());
            assertEquals("34.56", t.getCTTable().getTableColumns().getTableColumnArray(1).getName());

            s = wb.getSheet("NoExplicitHeaders");
            assertEquals(1, s.getTables().size());
            t = s.getTables().get(0);
            assertEquals("A1:B3", t.getCellReferences().formatAsString());
            assertEquals("Column1", t.getCTTable().getTableColumns().getTableColumnArray(0).getName());
            assertEquals("Column2", t.getCTTable().getTableColumns().getTableColumnArray(1).getName());
        }
    }

    @Test
    void testNumericCellsInTable() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet s = wb.createSheet();

            // Create some cells, some numeric, some not
            Cell c1 = s.createRow(0).createCell(0);
            Cell c2 = s.getRow(0).createCell(1);
            Cell c3 = s.getRow(0).createCell(2);
            Cell c4 = s.createRow(1).createCell(0);
            Cell c5 = s.getRow(1).createCell(1);
            Cell c6 = s.getRow(1).createCell(2);
            c1.setCellValue(12);
            c2.setCellValue(34.56);
            c3.setCellValue("ABCD");
            c4.setCellValue("AB");
            c5.setCellValue("CD");
            c6.setCellValue("EF");

            // Setting up the table
            XSSFTable t = s.createTable(new AreaReference("A1:C3", wb.getSpreadsheetVersion()));
            t.setName("TableTest");
            t.setDisplayName("CT_Table_Test");
            t.createColumn("Column 1");
            t.createColumn("Column 2");
            t.createColumn("Column 3");
            t.setCellReferences(wb.getCreationHelper().createAreaReference(
                    new CellReference(c1), new CellReference(c6)
            ));

            // Save and re-load
            try (XSSFWorkbook wb2 = XSSFTestDataSamples.writeOutAndReadBack(wb)) {
                s = wb2.getSheetAt(0);

                // Check
                assertEquals(1, s.getTables().size());
                t = s.getTables().get(0);
                assertEquals("A1", t.getStartCellReference().formatAsString());
                assertEquals("C2", t.getEndCellReference().formatAsString());

                // TODO Nicer column fetching
                assertEquals("12", t.getCTTable().getTableColumns().getTableColumnArray(0).getName());
                assertEquals("34.56", t.getCTTable().getTableColumns().getTableColumnArray(1).getName());
                assertEquals("ABCD", t.getCTTable().getTableColumns().getTableColumnArray(2).getName());
            }
        }
    }

    @Test
    void testSetDisplayName() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sheet = wb.createSheet();

            AreaReference reference1 = wb.getCreationHelper().createAreaReference(
                    new CellReference(0, 0), new CellReference(2, 2));

            XSSFTable table1 = sheet.createTable(reference1);
            table1.setDisplayName("TableTest");
            assertEquals("TableTest", table1.getDisplayName());
            assertEquals("TableTest", table1.getCTTable().getDisplayName());
        }
    }

    @Test
    void testSetDisplayNameNull() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sheet = wb.createSheet();

            AreaReference reference1 = wb.getCreationHelper().createAreaReference(
                    new CellReference(0, 0), new CellReference(2, 2));

            XSSFTable table1 = sheet.createTable(reference1);
            assertThrows(IllegalArgumentException.class, () -> table1.setDisplayName(null));
        }
    }

    @Test
    void testSetDisplayNameEmpty() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sheet = wb.createSheet();

            AreaReference reference1 = wb.getCreationHelper().createAreaReference(
                    new CellReference(0, 0), new CellReference(2, 2));

            XSSFTable table1 = sheet.createTable(reference1);
            assertThrows(IllegalArgumentException.class, () -> table1.setDisplayName(""));
        }
    }

    /**
     * Delete table2, and create a named range in sheet0; it should automatically be assigned the name "Table4"
     */
    @Test
    void testBug63401And62906() throws IOException {
        try (XSSFWorkbook workbook = new XSSFWorkbook()) {
            XSSFSheet sheet0 = workbook.createSheet();
            XSSFTable table = addTable(sheet0, 3, 0, 2, 2);
            assertNotNull(table);

            // final String procName = "testXSSFTableGetName";
            // final String name = table.getName();
            // System.out.printf(Locale.ROOT, "%s: table.getName=%s%n", procName, name);
        }
    }

    @Test
    void testBug65669() throws IOException {
        String[] testValues = new String[] {"C'olumn", "Column"};
        for (String testValue : testValues) {
            try (XSSFWorkbook wb = new XSSFWorkbook()) {
                XSSFSheet sheet = wb.createSheet();

                // Set the values for the table
                for (int i = 0; i < 3; i++) {
                    // Create row
                    Row row = sheet.createRow(i);
                    for (int j = 0; j < 3; j++) {
                        // Create cell
                        Cell cell = row.createCell(j);
                        if (i == 0) {
                            final String columnName = testValue + (j + 1);
                            cell.setCellValue(columnName);
                        } else {
                            if (j != 2) {
                                cell.setCellValue((i + 1.0) * (j + 1.0));
                            }
                        }
                    }
                }

                // Create Table
                AreaReference reference = wb.getCreationHelper().createAreaReference(
                        new CellReference(0, 0), new CellReference(2, 2));
                XSSFTable table = sheet.createTable(reference);
                table.setName("Table1");
                table.setDisplayName("Table1");
                for (int i = 1; i < 3; i++) {
                    Cell cell = sheet.getRow(i).getCell(2);
                    assertNotNull(cell);
                    cell.setCellFormula("Table1[[#This Row],[" + testValue + "1]]");
                }
            }
        }
    }

    private static XSSFTable addTable(XSSFSheet sheet,int nRow, int nCol, int nNumRows, int nNumCols) {
        for (int i = 0; i < nNumRows; i++) {
            XSSFRow row = sheet.createRow(i + nRow);
            for (int j = 0; j < nNumCols; j++) {
                XSSFCell localXSSFCell = row.createCell(j + nCol);
                if (i == 0) {
                    localXSSFCell.setCellValue(String.format(Locale.ROOT, "Col%d", j + 1));
                } else {
                    localXSSFCell.setCellValue(String.format(Locale.ROOT, "(%d,%d)", i + 1, j + 1));
                }
            }
        }
        final CellReference upperLeft = new CellReference(nRow, nCol);
        final CellReference lowerRight = new CellReference(nNumRows - 1, nNumCols - 1);
        final AreaReference area = new AreaReference(upperLeft, lowerRight, SpreadsheetVersion.EXCEL2007);
        return sheet.createTable(area);
    }

    @Test
    void testNamesWithNewLines() throws IOException {
        try (
                XSSFWorkbook wb = new XSSFWorkbook();
                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
        ) {
            XSSFSheet sheet = wb.createSheet();

            // headers
            XSSFRow headersRow = sheet.createRow(0);
            headersRow.createCell(0).setCellValue("Column1");
            headersRow.createCell(1).setCellValue("Column2");

            // a second row
            XSSFRow row = sheet.createRow(1);
            row.createCell(0).setCellValue(1);
            row.createCell(1).setCellValue(2);

            // create a table
            AreaReference area = wb.getCreationHelper().createAreaReference(
                    new CellReference(sheet.getRow(0).getCell(0)),
                    new CellReference(sheet.getRow(1).getCell(1))
            );
            XSSFTable table = sheet.createTable(area);

            // styling (no problem here)
            sheet.setColumnWidth(0, 5000);
            sheet.setColumnWidth(1, 5000);
            CTTable cttable = table.getCTTable();
            cttable.addNewTableStyleInfo();
            XSSFTableStyleInfo style = (XSSFTableStyleInfo) table.getStyle();
            style.setName("TableStyleMedium6");
            style.setShowColumnStripes(false);
            style.setShowRowStripes(true);
            cttable.addNewAutoFilter().setRef(area.formatAsString());
            CellStyle cellStyle = wb.createCellStyle();
            cellStyle.setWrapText(true);
            headersRow.getCell(0).setCellStyle(cellStyle);
            headersRow.getCell(0).setCellValue("Column1\nwith a line break");

            wb.write(bos);

            try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                XSSFSheet wb2Sheet = wb2.getSheetAt(0);
                List<XSSFTable> tables = wb2Sheet.getTables();
                assertEquals(1, tables.size());
                XSSFTable wb2Table = tables.get(0);
                List<XSSFTableColumn> tabColumns = wb2Table.getColumns();
                assertEquals(2, tabColumns.size());
                assertEquals("Column1_x000a_with a line break", tabColumns.get(0).getName());
            }
        }
    }

    @Test
    void bug66211() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("table-sample.xlsx")) {
            XSSFTable table = wb.getTable("Tabelle1");
            assertEquals(1, table.getHeaderRowCount());
            assertEquals(3, table.getStartRowIndex());
            List<XSSFTableColumn> cols = table.getColumns();
            assertEquals(5, cols.size());
            assertEquals("Field 1", cols.get(0).getName());
            XSSFSheet sheet = table.getXSSFSheet();
            XSSFRow headerRow = sheet.getRow(3);
            headerRow.getCell(2).setCellValue("Column 1");
            table.updateHeaders();
            List<XSSFTableColumn> updatedCols = table.getColumns();
            assertEquals(5, updatedCols.size());
            assertEquals("Column 1", updatedCols.get(0).getName());
            assertEquals(cols.get(1).getName(), updatedCols.get(1).getName());
            assertEquals(cols.get(2).getName(), updatedCols.get(2).getName());
            assertEquals(cols.get(3).getName(), updatedCols.get(3).getName());
            assertEquals(cols.get(4).getName(), updatedCols.get(4).getName());
        }
    }

    @Test
    void bug66212() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("table-sample.xlsx")) {
            XSSFTable table = wb.getTable("Tabelle1");
            XSSFSheet sheet = table.getXSSFSheet();
            assertEquals(1, sheet.getCTWorksheet().getTableParts().sizeOfTablePartArray());
            sheet.removeTable(table);
            assertEquals(0, sheet.getCTWorksheet().getTableParts().sizeOfTablePartArray());
        }
    }

    @Test
    void bug66213() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("table-sample.xlsx")) {
            wb.cloneSheet(0, "Test");
            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                wb.write(bos);
                try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                    XSSFSheet sheet0 = wb2.getSheetAt(0);
                    XSSFSheet sheet1 = wb2.getSheetAt(1);
                    assertEquals(1, sheet0.getTables().size());
                    assertEquals(1, sheet1.getTables().size());
                    assertEquals("Tabelle1", sheet0.getTables().get(0).getName());
                    assertEquals("Table2", sheet1.getTables().get(0).getName());
                }
            }
        }
    }

    @Test
    void testCloneConditionalFormattingSamples() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("ConditionalFormattingSamples.xlsx")) {
            wb.cloneSheet(0, "Test");
            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                wb.write(bos);
                try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                    XSSFSheet sheet0 = wb2.getSheetAt(0);
                    XSSFSheet sheet1 = wb2.getSheetAt(1);
                    assertEquals(0, sheet0.getTables().size());
                    assertEquals(0, sheet1.getTables().size());
                }
            }
        }
    }

    @Test
    void testCloneSingleCellTable() throws IOException {
        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("SingleCellTable.xlsx")) {
            wb.cloneSheet(0, "Test");
            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                wb.write(bos);
                try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                    XSSFSheet sheet0 = wb2.getSheetAt(0);
                    XSSFSheet sheet1 = wb2.getSheetAt(1);
                    assertEquals(1, sheet0.getTables().size());
                    assertEquals(0, sheet1.getTables().size());
                }
            }
        }
    }

    @Test
    void testGetStyleNameNull() throws IOException {
        try (XSSFWorkbook wb = new XSSFWorkbook()) {
            XSSFSheet sh = wb.createSheet();
            AreaReference tableArea = new AreaReference("B2:B6", wb.getSpreadsheetVersion());
            XSSFTable table = sh.createTable(tableArea);

            assertNull(table.getStyleName());

            table.getCTTable().setTableStyleInfo(CTTableStyleInfo.Factory.newInstance());

            assertNull(table.getStyleName());
        }
    }
}