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package org.apache.poi.ss.formula.atp;
import junit.framework.TestCase;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.ss.formula.eval.ErrorEval;
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;
/**
* Testcase for 'Analysis Toolpak' function RANDBETWEEN()
*
* @author Brendan Nolan
*/
public class TestRandBetween extends TestCase {
private Workbook wb;
private FormulaEvaluator evaluator;
private Cell bottomValueCell;
private Cell topValueCell;
private Cell formulaCell;
@Override
protected void setUp() throws Exception {
super.setUp();
wb = HSSFTestDataSamples.openSampleWorkbook("TestRandBetween.xls");
evaluator = wb.getCreationHelper().createFormulaEvaluator();
Sheet sheet = wb.createSheet("RandBetweenSheet");
Row row = sheet.createRow(0);
bottomValueCell = row.createCell(0);
topValueCell = row.createCell(1);
formulaCell = row.createCell(2, CellType.FORMULA);
}
@Override
protected void tearDown() throws Exception {
// TODO Auto-generated method stub
super.tearDown();
}
/**
* Check where values are the same
*/
public void testRandBetweenSameValues() {
evaluator.clearAllCachedResultValues();
formulaCell.setCellFormula("RANDBETWEEN(1,1)");
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(1, formulaCell.getNumericCellValue(), 0);
evaluator.clearAllCachedResultValues();
formulaCell.setCellFormula("RANDBETWEEN(-1,-1)");
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(-1, formulaCell.getNumericCellValue(), 0);
}
/**
* Check special case where rounded up bottom value is greater than
* top value.
*/
public void testRandBetweenSpecialCase() {
bottomValueCell.setCellValue(0.05);
topValueCell.setCellValue(0.1);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(1, formulaCell.getNumericCellValue(), 0);
bottomValueCell.setCellValue(-0.1);
topValueCell.setCellValue(-0.05);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(0, formulaCell.getNumericCellValue(), 0);
bottomValueCell.setCellValue(-1.1);
topValueCell.setCellValue(-1.05);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(-1, formulaCell.getNumericCellValue(), 0);
bottomValueCell.setCellValue(-1.1);
topValueCell.setCellValue(-1.1);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(-1, formulaCell.getNumericCellValue(), 0);
}
/**
* Check top value of BLANK which Excel will evaluate as 0
*/
public void testRandBetweenTopBlank() {
bottomValueCell.setCellValue(-1);
topValueCell.setCellType(CellType.BLANK);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertTrue(formulaCell.getNumericCellValue() == 0 || formulaCell.getNumericCellValue() == -1);
}
/**
* Check where input values are of wrong type
*/
public void testRandBetweenWrongInputTypes() {
// Check case where bottom input is of the wrong type
bottomValueCell.setCellValue("STRING");
topValueCell.setCellValue(1);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(CellType.ERROR, formulaCell.getCachedFormulaResultTypeEnum());
assertEquals(ErrorEval.VALUE_INVALID.getErrorCode(), formulaCell.getErrorCellValue());
// Check case where top input is of the wrong type
bottomValueCell.setCellValue(1);
topValueCell.setCellValue("STRING");
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(CellType.ERROR, formulaCell.getCachedFormulaResultTypeEnum());
assertEquals(ErrorEval.VALUE_INVALID.getErrorCode(), formulaCell.getErrorCellValue());
// Check case where both inputs are of wrong type
bottomValueCell.setCellValue("STRING");
topValueCell.setCellValue("STRING");
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(CellType.ERROR, formulaCell.getCachedFormulaResultTypeEnum());
assertEquals(ErrorEval.VALUE_INVALID.getErrorCode(), formulaCell.getErrorCellValue());
}
/**
* Check case where bottom is greater than top
*/
public void testRandBetweenBottomGreaterThanTop() {
// Check case where bottom is greater than top
bottomValueCell.setCellValue(1);
topValueCell.setCellValue(0);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(CellType.ERROR, formulaCell.getCachedFormulaResultTypeEnum());
assertEquals(ErrorEval.NUM_ERROR.getErrorCode(), formulaCell.getErrorCellValue());
bottomValueCell.setCellValue(1);
topValueCell.setCellType(CellType.BLANK);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertEquals(CellType.ERROR, formulaCell.getCachedFormulaResultTypeEnum());
assertEquals(ErrorEval.NUM_ERROR.getErrorCode(), formulaCell.getErrorCellValue());
}
/**
* Boundary check of Double MIN and MAX values
*/
public void testRandBetweenBoundaryCheck() {
bottomValueCell.setCellValue(Double.MIN_VALUE);
topValueCell.setCellValue(Double.MAX_VALUE);
formulaCell.setCellFormula("RANDBETWEEN($A$1,$B$1)");
evaluator.clearAllCachedResultValues();
evaluator.evaluateFormulaCellEnum(formulaCell);
assertTrue(formulaCell.getNumericCellValue() >= Double.MIN_VALUE && formulaCell.getNumericCellValue() <= Double.MAX_VALUE);
}
}