TestIfs.java

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package org.apache.poi.ss.formula.atp;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellReference;
import org.junit.jupiter.api.Test;

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

/**
 * Testcase for 'Analysis Toolpak' function IFS()
 *
 * @author Pieter Degraeuwe
 */
public class TestIfs  {

    /**
     * =IFS(A1="A", "Value for A" , A1="B", "Value for B")
     */
    @Test
    public void testEvaluate() {
        Workbook wb = new HSSFWorkbook();
        Sheet sh = wb.createSheet();
        Row row1 = sh.createRow(0);

        // Create cells
        row1.createCell(0, CellType.STRING);

        // Create references
        CellReference a1Ref = new CellReference("A1");

        // Set values
        final Cell cellA1 = sh.getRow(a1Ref.getRow()).getCell(a1Ref.getCol());


        Cell cell1 = row1.createCell(1);
        cell1.setCellFormula("IFS(A1=\"A\", \"Value for A\", A1=\"B\",\"Value for B\")");

        FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();

        cellA1.setCellValue("A");
        assertEquals(CellType.STRING, evaluator.evaluate(cell1).getCellType());
        assertEquals("Value for A", evaluator.evaluate(cell1).getStringValue(),
                "IFS should return 'Value for B'");

        cellA1.setCellValue("B");
        evaluator.clearAllCachedResultValues();
        assertEquals(CellType.STRING, evaluator.evaluate(cell1).getCellType());
        assertEquals("Value for B", evaluator.evaluate(cell1).getStringValue(),
                "IFS should return 'Value for B'");
    }

    /**
     * where D1 contains a string "A"
     * =IFS(A1=D1, "Value for A" , A1="B", "Value for B")
     */
    @Test
    public  void testEvaluateForReferenced() {
        Workbook wb = new HSSFWorkbook();
        Sheet sh = wb.createSheet();
        Row row1 = sh.createRow(0);

        // Create cells
//        row1.createCell(0, CellType.STRING);

        // Create references
        CellReference a1Ref = new CellReference("A1");
        CellReference d1Ref = new CellReference("D1");

        // Set values
        final Cell cellA1 = sh.getRow(a1Ref.getRow()).createCell(a1Ref.getCol());
        cellA1.setCellFormula("D1");

        final Cell cellD1 = sh.getRow(d1Ref.getRow()).createCell(d1Ref.getCol());
        cellD1.setCellValue("A");


        Cell cell1 = row1.createCell(1);
        cell1.setCellFormula("IFS(A1=\"A\", \"Value for A\", A1=\"B\",\"Value for B\")");

        FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();

        cellD1.setCellValue("A");
        assertEquals(CellType.STRING, evaluator.evaluate(cell1).getCellType());
        assertEquals( "Value for A", evaluator.evaluate(cell1).getStringValue(),
                "IFS should return 'Value for B'");

        cellD1.setCellValue("B");
        evaluator.clearAllCachedResultValues();
        assertEquals(CellType.STRING, evaluator.evaluate(cell1).getCellType());
        assertEquals("Value for B", evaluator.evaluate(cell1).getStringValue(),
                "IFS should return 'Value for B'");

    }

}