TestXMatchFunction.java

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

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.FormulaError;
import org.junit.jupiter.api.Test;

import java.io.IOException;

import static org.apache.poi.ss.util.Utils.*;

/**
 * Testcase for function XMATCH()
 */
public class TestXMatchFunction {

    //https://support.microsoft.com/en-us/office/xmatch-function-d966da31-7a6b-4a13-a1c6-5a33ed6a0312
    @Test
    void testMicrosoftExample0() throws IOException {
        try (HSSFWorkbook wb = initNumWorkbook("Grape")) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(2).createCell(5);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7)", 2);
            assertError(fe, cell, "XMATCH(\"Gra\",C3:C7)", FormulaError.NA);
        }
    }

    @Test
    void testMicrosoftExample0Lowercase() throws IOException {
        try (HSSFWorkbook wb = initNumWorkbook("grape")) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(2).createCell(5);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7)", 2);
        }
    }

    @Test
    void testMicrosoftExample1() throws IOException {
        try (HSSFWorkbook wb = initNumWorkbook("Gra?")) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(2).createCell(5);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7,1)", 2);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7,-1)", 5);
            assertDouble(fe, cell, "XMATCH(\"Gra\",C3:C7,1)", 2);
            assertDouble(fe, cell, "XMATCH(\"Graz\",C3:C7,1)", 3);
            assertDouble(fe, cell, "XMATCH(\"Graz\",C3:C7,-1)", 2);
        }
    }

    @Test
    void testMicrosoftExample1Lowercase() throws IOException {
        try (HSSFWorkbook wb = initNumWorkbook("gra?")) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(2).createCell(5);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7,1)", 2);
            assertDouble(fe, cell, "XMATCH(E3,C3:C7,-1)", 5);
        }
    }

    @Test
    void testMicrosoftExample2() throws IOException {
        //the result in this example is correct but the description seems wrong from my testing
        //the result is based on the position and not a count
        try (HSSFWorkbook wb = initWorkbook2()) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(3).createCell(5);
            assertDouble(fe, cell, "XMATCH(F2,C3:C9,1)", 4);
            assertDouble(fe, cell, "XMATCH(F2,C3:C9,-1)", 5);
            assertError(fe, cell, "XMATCH(F2,C3:C9,2)", FormulaError.NA);
            assertDouble(fe, cell, "XMATCH(35000,C3:C9,1)", 2);
            assertDouble(fe, cell, "XMATCH(36000,C3:C9,1)", 1);
        }
    }

    @Test
    void testMicrosoftExample3() throws IOException {
        try (HSSFWorkbook wb = initWorkbook3()) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.getSheetAt(0).getRow(2).createCell(3);
            assertDouble(fe, cell, "INDEX(C6:E12,XMATCH(B3,B6:B12),XMATCH(C3,C5:E5))", 8492);
        }
    }

    @Test
    void testMicrosoftExample4() throws IOException {
        try (HSSFWorkbook wb = new HSSFWorkbook()) {
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = wb.createSheet().createRow(0).createCell(0);
            assertDouble(fe, cell, "XMATCH(4,{5,4,3,2,1})", 2);
            assertDouble(fe, cell, "XMATCH(4.5,{5,4,3,2,1},1)", 1);
        }
    }

    private HSSFWorkbook initNumWorkbook(String lookup) {
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet();
        addRow(sheet, 0);
        addRow(sheet, 1, null, null, "Product", null, "Product", "Position");
        addRow(sheet, 2, null, null, "Apple", null, lookup);
        addRow(sheet, 3, null, null, "Grape");
        addRow(sheet, 4, null, null, "Pear");
        addRow(sheet, 5, null, null, "Banana");
        addRow(sheet, 6, null, null, "Cherry");
        return wb;
    }

    private HSSFWorkbook initWorkbook2() {
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet();
        addRow(sheet, 0);
        addRow(sheet, 1, null, "Sales Rep", "Total Sales", null, "Bonus", 15000);
        addRow(sheet, 2, null, "Michael Neipper", 42000);
        addRow(sheet, 3, null, "Jan Kotas", 35000);
        addRow(sheet, 4, null, "Nancy Freehafer", 25000);
        addRow(sheet, 5, null, "Andrew Cencini", 15901);
        addRow(sheet, 6, null, "Anne Hellung-Larsen", 13801);
        addRow(sheet, 7, null, "Nancy Freehafer", 12181);
        addRow(sheet, 8, null, "Mariya Sergienko", 9201);
        return wb;
    }

    private HSSFWorkbook initWorkbook3() {
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet();
        addRow(sheet, 0);
        addRow(sheet, 1, null, "Sales Rep", "Month", "Total");
        addRow(sheet, 2, null, "Andrew Cencini", "Feb");
        addRow(sheet, 3);
        addRow(sheet, 4, null, "Sales Rep", "Jan", "Feb", "Mar");
        addRow(sheet, 5, null, "Michael Neipper", 3174, 6804, 4713);
        addRow(sheet, 6, null, "Jan Kotas", 1656, 8643, 3445);
        addRow(sheet, 7, null, "Nancy Freehafer", 2706, 2310, 6606);
        addRow(sheet, 8, null, "Andrew Cencini", 4930, 8492, 4474);
        addRow(sheet, 9, null, "Anne Hellung-Larsen", 6394, 9846, 4368);
        addRow(sheet, 10, null, "Nancy Freehafer", 2539, 8996, 4084);
        addRow(sheet, 11, null, "Mariya Sergienko", 4468, 5206, 7343);
        return wb;
    }

}