TestAbs.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.ss.formula.functions;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.formula.eval.BlankEval;
import org.apache.poi.ss.formula.eval.BoolEval;
import org.apache.poi.ss.formula.eval.ErrorEval;
import org.apache.poi.ss.formula.eval.NumberEval;
import org.apache.poi.ss.formula.eval.ValueEval;
import org.junit.jupiter.api.Test;

import java.io.IOException;

import static org.apache.poi.ss.util.Utils.assertDouble;
import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 * Tests for Excel function ABS()
 */
final class TestAbs {

    @Test
    void testBasic() throws IOException {
        try (HSSFWorkbook wb = new HSSFWorkbook()) {
            HSSFSheet sheet = wb.createSheet();
            HSSFRow row = sheet.createRow(0);
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = row.createCell(12);
            assertDouble(fe, cell, "ABS(-4)", 4, 0.0000000001);
            assertDouble(fe, cell, "ABS(-4.123)", 4.123, 0.0000000001);
        }
    }

    @Test
    void testRange() throws IOException {
        try (HSSFWorkbook wb = new HSSFWorkbook()) {
            HSSFSheet sheet = wb.createSheet();
            HSSFRow row0 = sheet.createRow(0);
            HSSFRow row1 = sheet.createRow(1);
            row0.createCell(0).setCellValue(1);
            row1.createCell(1).setCellValue(-2);
            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
            HSSFCell cell = row0.createCell(12);
            assertDouble(fe, cell, "ABS(A1:A2)", 1, 0.0000000001);
            HSSFCell cell2 = row1.getCell(12);
            //https://bz.apache.org/bugzilla/show_bug.cgi?id=66303 -- this should be non-null and contain a value of 2
        }
    }
}