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fixed evaluation of blank cells in COUNTIF, see Bugzilla 51498 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1243054 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2012-02-11 13:16:33 +00:00
parent 5b291578bc
commit 1d8365e7a3
6 changed files with 139 additions and 16 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta6" date="2012-??-??">
<action dev="poi-developers" type="fix">51498 - fixed evaluation of blank cells in COUNTIF</action>
<action dev="poi-developers" type="add">52576 - support changing external file references in HSSFWorkbook</action>
<action dev="poi-developers" type="add">49896 - support external references in FormulaRenderer</action>
<action dev="poi-developers" type="fix">52527 - avoid exception when matching shared formula records in HSSF</action>

36
src/java/org/apache/poi/ss/formula/functions/Countif.java
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@ -217,6 +217,14 @@ public final class Countif extends Fixed2ArgFunction {
} else if((x instanceof NumberEval)) {
NumberEval ne = (NumberEval) x;
testValue = ne.getNumberValue();
} else if((x instanceof BlankEval)) {
switch (getCode()) {
case CmpOp.NE:
// Excel counts blank values in range as not equal to any value. See Bugzilla 51498
return true;
default:
return false;
}
} else {
return false;
}
@ -258,7 +266,23 @@ public final class Countif extends Fixed2ArgFunction {
} else if((x instanceof BoolEval)) {
BoolEval be = (BoolEval) x;
testValue = boolToInt(be.getBooleanValue());
} else {
} else if((x instanceof BlankEval)) {
switch (getCode()) {
case CmpOp.NE:
// Excel counts blank values in range as not equal to any value. See Bugzilla 51498
return true;
default:
return false;
}
} else if((x instanceof NumberEval)) {
switch (getCode()) {
case CmpOp.NE:
// not-equals comparison of a number to boolean always returnes false
return true;
default:
return false;
}
} else {
return false;
}
return evaluate(testValue - _value);
@ -318,6 +342,10 @@ public final class Countif extends Fixed2ArgFunction {
case CmpOp.NONE:
case CmpOp.EQ:
return _value.length() == 0;
case CmpOp.NE:
// pred '<>' matches empty string but not blank cell
// pred '<>ABC' matches blank and 'not ABC'
return _value.length() != 0;
}
// no other criteria matches a blank cell
return false;
@ -342,7 +370,9 @@ public final class Countif extends Fixed2ArgFunction {
if (_pattern != null) {
return evaluate(_pattern.matcher(testedValue).matches());
}
return evaluate(testedValue.compareTo(_value));
// String criteria in COUNTIF are case insensitive:
// for example, the string "apples" and the string "APPLES" will match the same cells.
return evaluate(testedValue.compareToIgnoreCase(_value));
}
/**
* Translates Excel countif wildcard strings into java regex strings
@ -394,7 +424,7 @@ public final class Countif extends Fixed2ArgFunction {
sb.append(ch);
}
if (hasWildCard) {
return Pattern.compile(sb.toString());
return Pattern.compile(sb.toString(), Pattern.CASE_INSENSITIVE);
}
return null;
}

4
src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java
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@ -2220,7 +2220,9 @@ if(1==2) {
public void test49896() {
HSSFWorkbook wb = openSample("49896.xls");
HSSFCell cell = wb.getSheetAt(0).getRow(1).getCell(1);
assertEquals("VLOOKUP(A2,'[C:Documents and Settings/Yegor/My Documents/csco.xls]Sheet1'!$A$2:$B$3,2,FALSE)",
String PATH_SEPARATOR = System.getProperty("file.separator");
assertEquals("VLOOKUP(A2,'[C:Documents and Settings" + PATH_SEPARATOR+"Yegor"+PATH_SEPARATOR
+"My Documents"+PATH_SEPARATOR+"csco.xls]Sheet1'!$A$2:$B$3,2,FALSE)",
cell.getCellFormula());
}

114
src/testcases/org/apache/poi/ss/formula/functions/TestCountFuncs.java
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@ -40,6 +40,7 @@ import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.CellValue;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.util.CellReference;
/**
* Test cases for COUNT(), COUNTA() COUNTIF(), COUNTBLANK()
@ -196,6 +197,27 @@ public final class TestCountFuncs extends TestCase {
confirmCountIf(4, range, new StringEval("<>111"));
}
/**
* String criteria in COUNTIF are case insensitive;
* for example, the string "apples" and the string "APPLES" will match the same cells.
*/
public void testCaseInsensitiveStringComparison() {
AreaEval range;
ValueEval[] values;
values = new ValueEval[] {
new StringEval("no"),
new StringEval("NO"),
new StringEval("No"),
new StringEval("Yes")
};
range = EvalFactory.createAreaEval("A1:A4", values);
confirmCountIf(3, range, new StringEval("no"));
confirmCountIf(3, range, new StringEval("NO"));
confirmCountIf(3, range, new StringEval("No"));
}
/**
* special case where the criteria argument is a cell reference
*/
@ -365,27 +387,48 @@ public final class TestCountFuncs extends TestCase {
* Bug #51498 - Check that CountIf behaves correctly for GTE, LTE
* and NEQ cases
*/
public void testCountifLTEGTE() throws Exception {
public void testCountifBug51498() throws Exception {
final int REF_COL = 4;
final int EVAL_COL = 3;
// Note - POI currently agrees with OpenOffice on certain blank cell cases,
// while Excel can differ. This is the list of checks to skip
List<Integer> skipRowsPendingExcelVsOpenOffice = Arrays.asList(
new Integer[] {3});
HSSFWorkbook workbook = HSSFTestDataSamples.openSampleWorkbook("51498.xls");
HSSFWorkbook workbook = HSSFTestDataSamples.openSampleWorkbook("51498.xls");
FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
HSSFSheet sheet = workbook.getSheetAt(0);
for (int i = 0; i < 8; i++) {
if (skipRowsPendingExcelVsOpenOffice.contains(i)) {
// Skip the check for now
continue;
}
// numeric criteria
for (int i = 0; i < 8; i++) {
CellValue expected = evaluator.evaluate(sheet.getRow(i).getCell(REF_COL));
CellValue actual = evaluator.evaluate(sheet.getRow(i).getCell(EVAL_COL));
assertEquals(expected.formatAsString(), actual.formatAsString());
}
// boolean criteria
for (int i = 0; i < 8; i++) {
HSSFCell cellFmla = sheet.getRow(i).getCell(8);
HSSFCell cellRef = sheet.getRow(i).getCell(9);
double expectedValue = cellRef.getNumericCellValue();
double actualValue = evaluator.evaluate(cellFmla).getNumberValue();
assertEquals(
"Problem with a formula at " +
new CellReference(cellFmla).formatAsString() + "[" + cellFmla.getCellFormula()+"] ",
expectedValue, actualValue, 0.0001);
}
// string criteria
for (int i = 1; i < 9; i++) {
HSSFCell cellFmla = sheet.getRow(i).getCell(13);
HSSFCell cellRef = sheet.getRow(i).getCell(14);
double expectedValue = cellRef.getNumericCellValue();
double actualValue = evaluator.evaluate(cellFmla).getNumberValue();
assertEquals(
"Problem with a formula at " +
new CellReference(cellFmla).formatAsString() + "[" + cellFmla.getCellFormula()+"] ",
expectedValue, actualValue, 0.0001);
}
}
public void testWildCards() {
@ -456,6 +499,53 @@ public final class TestCountFuncs extends TestCase {
testCountFunctionFromSpreadsheet("countifExamples.xls", 1, 2, 3, "countif");
}
/**
* Two COUNTIF examples taken from
* http://office.microsoft.com/en-us/excel-help/countif-function-HP010069840.aspx?CTT=5&origin=HA010277524
*/
public void testCountifExamples() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("countifExamples.xls");
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFSheet sheet1 = wb.getSheet("MSDN Example 1");
for (int rowIx=7; rowIx<=12; rowIx++) {
HSSFRow row = sheet1.getRow(rowIx-1);
HSSFCell cellA = row.getCell(0); // cell containing a formula with COUNTIF
assertEquals(HSSFCell.CELL_TYPE_FORMULA, cellA.getCellType());
HSSFCell cellC = row.getCell(2); // cell with a reference value
assertEquals(HSSFCell.CELL_TYPE_NUMERIC, cellC.getCellType());
CellValue cv = fe.evaluate(cellA);
double actualValue = cv.getNumberValue();
double expectedValue = cellC.getNumericCellValue();
assertEquals(
"Problem with a formula at " + new CellReference(cellA).formatAsString()
+ ": " + cellA.getCellFormula() + " :"
+ "Expected = (" + expectedValue + ") Actual=(" + actualValue + ") ",
expectedValue, actualValue, 0.0001);
}
HSSFSheet sheet2 = wb.getSheet("MSDN Example 2");
for (int rowIx=9; rowIx<=14; rowIx++) {
HSSFRow row = sheet2.getRow(rowIx-1);
HSSFCell cellA = row.getCell(0); // cell containing a formula with COUNTIF
assertEquals(HSSFCell.CELL_TYPE_FORMULA, cellA.getCellType());
HSSFCell cellC = row.getCell(2); // cell with a reference value
assertEquals(HSSFCell.CELL_TYPE_NUMERIC, cellC.getCellType());
CellValue cv = fe.evaluate(cellA);
double actualValue = cv.getNumberValue();
double expectedValue = cellC.getNumericCellValue();
assertEquals(
"Problem with a formula at " +
new CellReference(cellA).formatAsString() + "[" + cellA.getCellFormula()+"]: "
+ "Expected = (" + expectedValue + ") Actual=(" + actualValue + ") ",
expectedValue, actualValue, 0.0001);
}
}
public void testCountBlankFromSpreadsheet() {
testCountFunctionFromSpreadsheet("countblankExamples.xls", 1, 3, 4, "countblank");
}

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test-data/spreadsheet/51498.xls
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test-data/spreadsheet/countifExamples.xls
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