src/ooxml/testcases/org/apache/poi/xssf/usermodel/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
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package org.apache.poi.xssf.usermodel;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

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 org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.TempFile;
import org.apache.poi.xssf.XSSFTestDataSamples;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.junit.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;

public final class TestXSSFTable {

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

        // read the original sheet header order
        XSSFRow row = wb1.getSheetAt(0).getRow(0);
        List<String> headers = new ArrayList<String>();
        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("number of headers in xml table should match number of header cells in worksheet",
                headers.size(), ctTableColumnArray.length);
        for (int i = 0; i < headers.size(); i++) {
            assertEquals("header name in xml table should match number of header cells in worksheet",
                    headers.get(i), ctTableColumnArray[i].getName());
        }
        assertTrue(outputFile.delete());
        wb2.close();
        wb1.close();
    }

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

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

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

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

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

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

        inputWorkbook.close();
        outputWorkbook.close();
    }

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

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

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

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

        wb.close();
    }

    @Test
    public void findColumnIndexIsRelativeToTableNotSheet() throws IOException {
        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"));

        wb.close();
    }

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

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

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

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

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

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

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

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

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

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

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

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

        wb.close();
    }

    @Test
    public void getCellReferences() {
        // make sure that cached start and end cell references
        // can be synchronized with the underlying CTTable
        XSSFWorkbook wb = new XSSFWorkbook();
        XSSFSheet sh = wb.createSheet();
        XSSFTable table = sh.createTable();
        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());
        
        IOUtils.closeQuietly(wb);
    }

    @Test
    public void getRowCount() {
        XSSFWorkbook wb = new XSSFWorkbook();
        XSSFSheet sh = wb.createSheet();
        XSSFTable table = sh.createTable();
        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());
        
        IOUtils.closeQuietly(wb);
    }

    @Test
    public void testDifferentHeaderTypes() throws IOException {
        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());
    }
    
    /**
     * See https://stackoverflow.com/questions/44407111/apache-poi-cant-format-filled-cells-as-numeric
     */
    @Test
    public void testNumericCellsInTable() throws IOException {
        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 CTTable
        XSSFTable t = s.createTable();
        t.setName("TableTest");
        t.setDisplayName("CT_Table_Test");
        t.addColumn();
        t.addColumn();
        t.addColumn();
        t.setCellReferences(wb.getCreationHelper().createAreaReference(
                new CellReference(c1), new CellReference(c6)
        ));

        // Save and re-load
        XSSFWorkbook wb2 = XSSFTestDataSamples.writeOutAndReadBack(wb);
        IOUtils.closeQuietly(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());
        
        // Done
        IOUtils.closeQuietly(wb2);
    }
}