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package org.apache.poi.hssf.usermodel;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.record.NameRecord;
import org.apache.poi.hssf.record.formula.eval.NumberEval;
import org.apache.poi.hssf.record.formula.eval.ValueEval;
import org.apache.poi.ss.formula.EvaluationCell;
import org.apache.poi.ss.formula.EvaluationListener;
import org.apache.poi.ss.formula.WorkbookEvaluator;
import org.apache.poi.ss.formula.WorkbookEvaluatorTestHelper;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellValue;
/**
*
* @author Josh Micich
*/
public final class TestHSSFFormulaEvaluator extends TestCase {
/**
* Test that the HSSFFormulaEvaluator can evaluate simple named ranges
* (single cells and rectangular areas)
*/
public void testEvaluateSimple() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("testNames.xls");
HSSFSheet sheet = wb.getSheetAt(0);
HSSFCell cell = sheet.getRow(8).getCell(0);
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
CellValue cv = fe.evaluate(cell);
assertEquals(HSSFCell.CELL_TYPE_NUMERIC, cv.getCellType());
assertEquals(3.72, cv.getNumberValue(), 0.0);
}
public void testFullColumnRefs() {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("Sheet1");
HSSFRow row = sheet.createRow(0);
HSSFCell cell0 = row.createCell(0);
cell0.setCellFormula("sum(D:D)");
HSSFCell cell1 = row.createCell(1);
cell1.setCellFormula("sum(D:E)");
// some values in column D
setValue(sheet, 1, 3, 5.0);
setValue(sheet, 2, 3, 6.0);
setValue(sheet, 5, 3, 7.0);
setValue(sheet, 50, 3, 8.0);
// some values in column E
setValue(sheet, 1, 4, 9.0);
setValue(sheet, 2, 4, 10.0);
setValue(sheet, 30000, 4, 11.0);
// some other values
setValue(sheet, 1, 2, 100.0);
setValue(sheet, 2, 5, 100.0);
setValue(sheet, 3, 6, 100.0);
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
assertEquals(26.0, fe.evaluate(cell0).getNumberValue(), 0.0);
assertEquals(56.0, fe.evaluate(cell1).getNumberValue(), 0.0);
}
private static void setValue(HSSFSheet sheet, int rowIndex, int colIndex, double value) {
HSSFRow row = sheet.getRow(rowIndex);
if (row == null) {
row = sheet.createRow(rowIndex);
}
row.createCell(colIndex).setCellValue(value);
}
/**
* {@link HSSFFormulaEvaluator#evaluate(org.apache.poi.ss.usermodel.Cell)} should behave the same whether the cell
* is <code>null</code> or blank.
*/
public void testEvaluateBlank() {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
assertNull(fe.evaluate(null));
HSSFSheet sheet = wb.createSheet("Sheet1");
HSSFCell cell = sheet.createRow(0).createCell(0);
assertNull(fe.evaluate(cell));
}
/**
* Test for bug due to attempt to convert a cached formula error result to a boolean
*/
public void testUpdateCachedFormulaResultFromErrorToNumber_bug46479() {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("Sheet1");
HSSFRow row = sheet.createRow(0);
HSSFCell cellA1 = row.createCell(0);
HSSFCell cellB1 = row.createCell(1);
cellB1.setCellFormula("A1+1");
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
cellA1.setCellErrorValue((byte)HSSFErrorConstants.ERROR_NAME);
fe.evaluateFormulaCell(cellB1);
cellA1.setCellValue(2.5);
fe.notifyUpdateCell(cellA1);
try {
fe.evaluateInCell(cellB1);
} catch (IllegalStateException e) {
if (e.getMessage().equals("Cannot get a numeric value from a error formula cell")) {
throw new AssertionFailedError("Identified bug 46479a");
}
}
assertEquals(3.5, cellB1.getNumericCellValue(), 0.0);
}
/**
* When evaluating defined names, POI has to decide whether it is capable. Currently
* (May2009) POI only supports simple cell and area refs.<br/>
* The sample spreadsheet (bugzilla attachment 23508) had a name flagged as 'complex'
* which contained a simple area ref. It is not clear what the 'complex' flag is used
* for but POI should look elsewhere to decide whether it can evaluate the name.
*/
public void testDefinedNameWithComplexFlag_bug47048() {
// Mock up a spreadsheet to match the critical details of the sample
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("Input");
HSSFName definedName = wb.createName();
definedName.setNameName("Is_Multicar_Vehicle");
definedName.setRefersToFormula("Input!$B$17:$G$17");
// Set up some data and the formula
HSSFRow row17 = sheet.createRow(16);
row17.createCell(0).setCellValue(25.0);
row17.createCell(1).setCellValue(1.33);
row17.createCell(2).setCellValue(4.0);
HSSFRow row = sheet.createRow(0);
HSSFCell cellA1 = row.createCell(0);
cellA1.setCellFormula("SUM(Is_Multicar_Vehicle)");
// Set the complex flag - POI doesn't usually manipulate this flag
NameRecord nameRec = TestHSSFName.getNameRecord(definedName);
nameRec.setOptionFlag((short)0x10); // 0x10 -> complex
HSSFFormulaEvaluator hsf = new HSSFFormulaEvaluator(wb);
CellValue value;
try {
value = hsf.evaluate(cellA1);
} catch (RuntimeException e) {
if (e.getMessage().equals("Don't now how to evalate name 'Is_Multicar_Vehicle'")) {
throw new AssertionFailedError("Identified bug 47048a");
}
throw e;
}
assertEquals(Cell.CELL_TYPE_NUMERIC, value.getCellType());
assertEquals(5.33, value.getNumberValue(), 0.0);
}
private static final class EvalCountListener extends EvaluationListener {
private int _evalCount;
public EvalCountListener() {
_evalCount = 0;
}
public void onStartEvaluate(EvaluationCell cell, ICacheEntry entry) {
_evalCount++;
}
public int getEvalCount() {
return _evalCount;
}
}
/**
* The HSSFFormula evaluator performance benefits greatly from caching of intermediate cell values
*/
public void testShortCircuitIfEvaluation() {
// Set up a simple IF() formula that has measurable evaluation cost for its operands.
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("Sheet1");
HSSFRow row = sheet.createRow(0);
HSSFCell cellA1 = row.createCell(0);
cellA1.setCellFormula("if(B1,C1,D1+E1+F1)");
// populate cells B1..F1 with simple formulas instead of plain values so we can use
// EvaluationListener to check which parts of the first formula get evaluated
for (int i=1; i<6; i++) {
// formulas are just literal constants "1".."5"
row.createCell(i).setCellFormula(String.valueOf(i));
}
EvalCountListener evalListener = new EvalCountListener();
WorkbookEvaluator evaluator = WorkbookEvaluatorTestHelper.createEvaluator(wb, evalListener);
ValueEval ve = evaluator.evaluate(HSSFEvaluationTestHelper.wrapCell(cellA1));
int evalCount = evalListener.getEvalCount();
if (evalCount == 6) {
// Without short-circuit-if evaluation, evaluating cell 'A1' takes 3 extra evaluations (for D1,E1,F1)
throw new AssertionFailedError("Identifed bug 48195 - Formula evaluator should short-circuit IF() calculations.");
}
assertEquals(3, evalCount);
assertEquals(2.0, ((NumberEval)ve).getNumberValue(), 0D);
}
}