fix bug #44297: IntPtg must operate with unsigned short. Reading signed short results in incorrect formula calculation.
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@615610 13f79535-47bb-0310-9956-ffa450edef68
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@ -36,6 +36,7 @@
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<!-- Don't forget to update status.xml too! -->
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<release version="3.0.2-FINAL" date="2008-??-??">
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<action dev="POI-DEVELOPERS" type="fix">44297 - IntPtg must operate with unsigned short. Reading signed short results in incorrect formula calculation</action>
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<action dev="POI-DEVELOPERS" type="fix">44296 - Fix for reading slide background images</action>
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<action dev="POI-DEVELOPERS" type="fix">44293 - Avoid swapping AreaPtgs from relative to absolute</action>
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<action dev="POI-DEVELOPERS" type="fix">44292 - Correctly process the last paragraph in a word file</action>
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@ -33,6 +33,7 @@
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<!-- Don't forget to update changes.xml too! -->
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<changes>
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<release version="3.0.2-FINAL" date="2008-??-??">
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<action dev="POI-DEVELOPERS" type="fix">44297 - IntPtg must operate with unsigned short. Reading signed short results in incorrect formula calculation</action>
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<action dev="POI-DEVELOPERS" type="fix">44296 - Fix for reading slide background images</action>
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<action dev="POI-DEVELOPERS" type="fix">44293 - Avoid swapping AreaPtgs from relative to absolute</action>
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<action dev="POI-DEVELOPERS" type="fix">44292 - Correctly process the last paragraph in a word file</action>
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@ -40,7 +40,7 @@ public class IntPtg
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{
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public final static int SIZE = 3;
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public final static byte sid = 0x1e;
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private short field_1_value;
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private int field_1_value;
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private IntPtg() {
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//Required for clone methods
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@ -48,42 +48,31 @@ public class IntPtg
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public IntPtg(RecordInputStream in)
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{
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setValue(in.readShort());
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setValue(in.readUShort());
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}
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// IntPtg should be able to create itself, shouldnt have to call setValue
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public IntPtg(String formulaToken) {
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setValue(Short.parseShort(formulaToken));
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setValue(Integer.parseInt(formulaToken));
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}
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/**
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* Sets the wrapped value.
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* Normally you should call with a positive int.
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*/
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public void setValue(short value)
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{
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field_1_value = value;
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}
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/**
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* Sets the unsigned value.
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* (Handles conversion to the internal short value)
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*/
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public void setValue(int value)
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{
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if(value > Short.MAX_VALUE) {
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// Need to wrap
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value -= (Short.MAX_VALUE+1)*2;
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}
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field_1_value = (short)value;
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if(value < 0 || value > (Short.MAX_VALUE + 1)*2 )
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throw new IllegalArgumentException("Unsigned short is out of range: " + value);
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field_1_value = value;
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}
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/**
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* Returns the value as a short, which may have
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* been wrapped into negative numbers
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*/
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public short getValue()
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public int getValue()
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{
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return field_1_value;
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}
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@ -102,7 +91,7 @@ public class IntPtg
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public void writeBytes(byte [] array, int offset)
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{
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array[ offset + 0 ] = sid;
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LittleEndian.putShort(array, offset + 1, getValue());
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LittleEndian.putUShort(array, offset + 1, getValue());
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}
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public int getSize()
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BIN
src/scratchpad/testcases/org/apache/poi/hssf/data/44297.xls
Executable file
BIN
src/scratchpad/testcases/org/apache/poi/hssf/data/44297.xls
Executable file
Binary file not shown.
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src/scratchpad/testcases/org/apache/poi/hssf/usermodel/TestBug44297.java
Executable file
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src/scratchpad/testcases/org/apache/poi/hssf/usermodel/TestBug44297.java
Executable file
@ -0,0 +1,103 @@
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package org.apache.poi.hssf.usermodel;
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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import junit.framework.TestCase;
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import java.io.IOException;
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import java.io.FileInputStream;
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import java.io.File;
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/**
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* Bug 44297: 32767+32768 is evaluated to -1
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* Fix: IntPtg must operate with unsigned short. Reading signed short results in incorrect formula calculation
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* if a formula has values in the interval [Short.MAX_VALUE, (Short.MAX_VALUE+1)*2]
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*
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* @author Yegor Kozlov
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*/
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public class TestBug44297 extends TestCase {
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protected String cwd = System.getProperty("HSSF.testdata.path");
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public void test44297() throws IOException {
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FileInputStream in = new FileInputStream(new File(cwd, "44297.xls"));
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HSSFWorkbook wb = new HSSFWorkbook(in);
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in.close();
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HSSFRow row;
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HSSFCell cell;
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HSSFSheet sheet = wb.getSheetAt(0);
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HSSFFormulaEvaluator eva = new HSSFFormulaEvaluator(sheet, wb);
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row = (HSSFRow)sheet.getRow(0);
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cell = row.getCell((short)0);
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assertEquals("31+46", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(77, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(1);
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cell = row.getCell((short)0);
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assertEquals("30+53", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(83, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(2);
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cell = row.getCell((short)0);
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assertEquals("SUM(A1:A2)", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(160, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(4);
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cell = row.getCell((short)0);
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assertEquals("32767+32768", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(65535, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(7);
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cell = row.getCell((short)0);
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assertEquals("32744+42333", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(75077, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(8);
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cell = row.getCell((short)0);
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assertEquals("327680.0/32768", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(10, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(9);
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cell = row.getCell((short)0);
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assertEquals("32767+32769", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(65536, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(10);
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cell = row.getCell((short)0);
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assertEquals("35000+36000", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(71000, eva.evaluate(cell).getNumberValue(), 0);
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row = (HSSFRow)sheet.getRow(11);
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cell = row.getCell((short)0);
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assertEquals("-1000000.0-3000000.0", cell.getCellFormula());
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eva.setCurrentRow(row);
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assertEquals(-4000000, eva.evaluate(cell).getNumberValue(), 0);
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}
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}
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@ -379,15 +379,16 @@ public class TestFormulaParser extends TestCase {
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fp = new FormulaParser("40000", null);
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fp.parse();
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ptg=fp.getRPNPtg();
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assertTrue("ptg should be Number, is "+ptg[0].getClass(), ptg[0] instanceof NumberPtg);
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assertTrue("ptg should be IntPtg, is "+ptg[0].getClass(), ptg[0] instanceof IntPtg);
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}
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/** bug 33160, testcase by Amol Deshmukh*/
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public void testSimpleLongFormula() {
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FormulaParser fp = new FormulaParser("40000/2", null);
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fp.parse();
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Ptg[] ptgs = fp.getRPNPtg();
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assertTrue("three tokens expected, got "+ptgs.length,ptgs.length == 3);
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assertTrue("NumberPtg",(ptgs[0] instanceof NumberPtg));
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assertTrue("IntPtg",(ptgs[0] instanceof IntPtg));
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assertTrue("IntPtg",(ptgs[1] instanceof IntPtg));
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assertTrue("DividePtg",(ptgs[2] instanceof DividePtg));
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}
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