log4j/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFSheetUpdateArrayFormulas.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.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;

import java.io.IOException;

import org.apache.poi.ss.usermodel.BaseTestSheetUpdateArrayFormulas;
import org.apache.poi.ss.usermodel.CellRange;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.XSSFITestDataProvider;
import org.junit.jupiter.api.Test;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCell;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCellFormula;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.STCellFormulaType;

/**
 * Test array formulas in XSSF
 */
public final class TestXSSFSheetUpdateArrayFormulas extends BaseTestSheetUpdateArrayFormulas {

    public TestXSSFSheetUpdateArrayFormulas() {
        super(XSSFITestDataProvider.instance);
    }

    // Test methods common with HSSF are in superclass
    // Local methods here test XSSF-specific details of updating array formulas
    @Test
    void testXSSFSetArrayFormula_singleCell() throws IOException {
        CellRange<XSSFCell> cells;

        XSSFWorkbook workbook = new XSSFWorkbook();
        XSSFSheet sheet = workbook.createSheet();

        // 1. single-cell array formula
        String formula1 = "123";
        CellRangeAddress range = CellRangeAddress.valueOf("C3:C3");
        cells = sheet.setArrayFormula(formula1, range);
        assertEquals(1, cells.size());

        // check getFirstCell...
        XSSFCell firstCell = cells.getTopLeftCell();
        assertSame(firstCell, sheet.getFirstCellInArrayFormula(firstCell));
        //retrieve the range and check it is the same
        assertEquals(range.formatAsString(), firstCell.getArrayFormulaRange().formatAsString());
        confirmArrayFormulaCell(firstCell, "C3", formula1, "C3");

        workbook.close();
    }

    @Test
    void testXSSFSetArrayFormula_multiCell() throws IOException {
        CellRange<XSSFCell> cells;

        String formula2 = "456";
        XSSFWorkbook workbook = new XSSFWorkbook();
        XSSFSheet sheet = workbook.createSheet();

        CellRangeAddress range = CellRangeAddress.valueOf("C4:C6");
        cells = sheet.setArrayFormula(formula2, range);
        assertEquals(3, cells.size());

        // sheet.setArrayFormula creates rows and cells for the designated range
        /*
         * From the spec:
         * For a multi-cell formula, the c elements for all cells except the top-left
         * cell in that range shall not have an f element;
         */
        // Check that each cell exists and that the formula text is set correctly on the first cell
        XSSFCell firstCell = cells.getTopLeftCell();
        confirmArrayFormulaCell(firstCell, "C4", formula2, "C4:C6");
        confirmArrayFormulaCell(cells.getCell(1, 0), "C5");
        confirmArrayFormulaCell(cells.getCell(2, 0), "C6");

        assertSame(firstCell, sheet.getFirstCellInArrayFormula(firstCell));
        workbook.close();
    }

    private static void confirmArrayFormulaCell(XSSFCell c, String cellRef) {
        confirmArrayFormulaCell(c, cellRef, null, null);
    }
    private static void confirmArrayFormulaCell(XSSFCell c, String cellRef, String formulaText, String arrayRangeRef) {
        assertNotNull(c, "Cell should not be null.");
        CTCell ctCell = c.getCTCell();
        assertEquals(cellRef, ctCell.getR());
        if (formulaText == null) {
            assertFalse(ctCell.isSetF());
            assertNull(ctCell.getF());
        } else {
            CTCellFormula f = ctCell.getF();
            assertEquals(arrayRangeRef, f.getRef());
            assertEquals(formulaText, f.getStringValue());
            assertEquals(STCellFormulaType.ARRAY, f.getT());
        }
    }

}