Fix for bug 44739 - Conditional formatting (regions with max row/col index)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@644473 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 186 insertions, 115 deletions

diff --git a/src/documentation/content/xdocs/changes.xml b/src/documentation/content/xdocs/changes.xml
index a30c523680..e2e6faef7e 100644
--- a/src/documentation/content/xdocs/changes.xml
+++ b/src/documentation/content/xdocs/changes.xml
@@ -37,6 +37,7 @@
 
 		<!-- Don't forget to update status.xml too! -->
         <release version="3.0.3-beta1" date="2008-04-??">
+           <action dev="POI-DEVELOPERS" type="fix">44739 - Small fixes for conditional formatting (regions with max row/col index)</action>
            <action dev="POI-DEVELOPERS" type="add">Implement Sheet.removeShape(Shape shape) in HSLF</action>
            <action dev="RK" type="add">44694 - HPSF: Support for property sets without sections</action>
            <action dev="POI-DEVELOPERS" type="add">Various fixes: Recognising var-arg built-in functions #44675, ExternalNameRecord serialisation bug #44695, PMT() bug #44691</action>
diff --git a/src/documentation/content/xdocs/status.xml b/src/documentation/content/xdocs/status.xml
index 5e963e484c..7a1d2e9717 100644
--- a/src/documentation/content/xdocs/status.xml
+++ b/src/documentation/content/xdocs/status.xml
@@ -34,6 +34,7 @@
 	<!-- Don't forget to update changes.xml too! -->
     <changes>
         <release version="3.0.3-beta1" date="2008-04-??">
+           <action dev="POI-DEVELOPERS" type="fix">44739 - Small fixes for conditional formatting (regions with max row/col index)</action>
            <action dev="RK" type="add">44694 - HPSF: Support for property sets without sections</action>
            <action dev="POI-DEVELOPERS" type="add">Implement Sheet.removeShape(Shape shape) in HSLF</action>
            <action dev="POI-DEVELOPERS" type="add">Various fixes: Recognising var-arg built-in functions #44675, ExternalNameRecord serialisation bug #44695, PMT() bug #44691</action>
diff --git a/src/java/org/apache/poi/hssf/record/CFHeaderRecord.java b/src/java/org/apache/poi/hssf/record/CFHeaderRecord.java
index 7f2d5c3197..d74d54ab17 100644
--- a/src/java/org/apache/poi/hssf/record/CFHeaderRecord.java
+++ b/src/java/org/apache/poi/hssf/record/CFHeaderRecord.java
@@ -58,12 +58,12 @@ public final class CFHeaderRecord extends Record
 	{
 		field_1_numcf = in.readShort();
 		field_2_need_recalculation = in.readShort();
-		field_3_enclosing_cell_range = new CellRange(in.readShort(),in.readShort(),in.readShort(),in.readShort());
+		field_3_enclosing_cell_range = new CellRange(in.readUShort(), in.readUShort(), in.readUShort(), in.readUShort());
 		int numCellRanges = in.readShort();
 		CellRange[] crs = new CellRange[numCellRanges];
 		for( int i=0; i<numCellRanges; i++)
 		{
-			crs[i] = new CellRange(in.readShort(),in.readShort(),in.readShort(),in.readShort());
+			crs[i] = new CellRange(in.readUShort(),in.readUShort(),in.readUShort(),in.readUShort());
 		}
 		field_4_cell_ranges = crs;
 	}
diff --git a/src/java/org/apache/poi/hssf/record/cf/CellRange.java b/src/java/org/apache/poi/hssf/record/cf/CellRange.java
index 16093ee582..f8839d99c1 100644
--- a/src/java/org/apache/poi/hssf/record/cf/CellRange.java
+++ b/src/java/org/apache/poi/hssf/record/cf/CellRange.java
@@ -29,12 +29,10 @@ import org.apache.poi.hssf.util.Region;
  */
 public final class CellRange
 {
-	/** 
-	 * max index for both row and column<p/>
-	 * 
-	 * Note - this value converts to <tt>-1</tt> when cast to a <tt>short</tt> 
-	 */
-	private static final int MAX_INDEX = Integer.MAX_VALUE;
+	/** max 65536 rows in BIFF8 */
+	private static final int LAST_ROW_INDEX = 0x00FFFF; 
+	/** max 256 columns in BIFF8 */
+	private static final int LAST_COLUMN_INDEX = 0x00FF;
 
 	private static final Region[] EMPTY_REGION_ARRAY = { };
 	
@@ -57,54 +55,46 @@ public final class CellRange
 					+ ", " + firstColumn + ", " + lastColumn + ")");
 		}
 		_firstRow = firstRow;
-		_lastRow = convertM1ToMax(lastRow);
+		_lastRow = convertM1ToMax(lastRow, LAST_ROW_INDEX);
 		_firstColumn = firstColumn;
-		_lastColumn = convertM1ToMax(lastColumn);
+		_lastColumn = convertM1ToMax(lastColumn, LAST_COLUMN_INDEX);
 	}
 	
-	private static int convertM1ToMax(int lastIx) {
+	/** 
+	 * Range arithmetic is easier when using a large positive number for 'max row or column' 
+	 * instead of <tt>-1</tt>. 
+	 */
+	private static int convertM1ToMax(int lastIx, int maxIndex) {
 		if(lastIx < 0) {
-			return MAX_INDEX;
-		}
-		return lastIx;
-	}
-	private static int convertMaxToM1(int lastIx) {
-		if(lastIx == MAX_INDEX) {
-			return -1;
+			return maxIndex;
 		}
 		return lastIx;
 	}
 
 	public boolean isFullColumnRange() {
-		return _firstColumn == 0 && _lastColumn == MAX_INDEX;
+		return _firstRow == 0 && _lastRow == LAST_ROW_INDEX;
 	}
 	public boolean isFullRowRange() {
-		return _firstRow == 0 && _lastRow == MAX_INDEX;
+		return _firstColumn == 0 && _lastColumn == LAST_COLUMN_INDEX;
 	}
 	
 	public CellRange(Region r) {
 		this(r.getRowFrom(), r.getRowTo(), r.getColumnFrom(), r.getColumnTo());
 	}
 
-	
-	
 	private static boolean isValid(int firstRow, int lastRow, int firstColumn, int lastColumn)
 	{
-		if(lastRow == -1) {
-			if(firstRow !=0) {
-				return false;
-			}
+		if(lastRow < 0 || lastRow > LAST_ROW_INDEX) {
+			return false;
 		}
-		if(firstRow < 0 || lastRow < -1) {
+		if(firstRow < 0 || firstRow > LAST_ROW_INDEX) {
 			return false;
 		}
 		
-		if(lastColumn == -1) {
-			if(firstColumn !=0) {
-				return false;
-			}
+		if(lastColumn < 0 || lastColumn > LAST_COLUMN_INDEX) {
+			return false;
 		}
-		if(firstColumn < 0 || lastColumn < -1) {
+		if(firstColumn < 0 || firstColumn > LAST_COLUMN_INDEX) {
 			return false;
 		}
 		return true;
@@ -114,23 +104,17 @@ public final class CellRange
 	{
 		return _firstRow;
 	}
-	/**
-	 * @return <tt>-1</tt> for whole column ranges
-	 */
 	public int getLastRow()
 	{
-		return convertMaxToM1(_lastRow);
+		return _lastRow;
 	}
 	public int getFirstColumn()
 	{
 		return _firstColumn;
 	}
-	/**
-	 * @return <tt>-1</tt> for whole row ranges
-	 */
 	public int getLastColumn()
 	{
-		return convertMaxToM1(_lastColumn);
+		return _lastColumn;
 	}
 	
 	public static final int NO_INTERSECTION = 1;
@@ -404,10 +388,8 @@ public final class CellRange
 
 		
 	private Region convertToRegion() {
-		int lastRow = convertMaxToM1(_lastRow);
-		int lastColumn = convertMaxToM1(_lastColumn);
 		
-		return new Region(_firstRow, (short)_firstColumn, lastRow, (short)lastColumn);
+		return new Region(_firstRow, (short)_firstColumn, _lastRow, (short)_lastColumn);
 	}
 
 
diff --git a/src/testcases/org/apache/poi/hssf/record/AllRecordTests.java b/src/testcases/org/apache/poi/hssf/record/AllRecordTests.java
index 32b16cf656..78128dbe19 100755
--- a/src/testcases/org/apache/poi/hssf/record/AllRecordTests.java
+++ b/src/testcases/org/apache/poi/hssf/record/AllRecordTests.java
@@ -17,13 +17,13 @@
 
 package org.apache.poi.hssf.record;
 
-import org.apache.poi.hssf.record.aggregates.AllRecordAggregateTests;
-import org.apache.poi.hssf.record.formula.AllFormulaTests;
-import org.apache.poi.hssf.record.formula.functions.AllIndividualFunctionEvaluationTests;
-
 import junit.framework.Test;
 import junit.framework.TestSuite;
 
+import org.apache.poi.hssf.record.aggregates.AllRecordAggregateTests;
+import org.apache.poi.hssf.record.cf.TestCellRange;
+import org.apache.poi.hssf.record.formula.AllFormulaTests;
+
 /**
  * Collects all tests for package <tt>org.apache.poi.hssf.record</tt>.
  * 
@@ -104,6 +104,7 @@ public final class AllRecordTests {
 		result.addTestSuite(TestUnicodeString.class);
 		result.addTestSuite(TestUnitsRecord.class);
 		result.addTestSuite(TestValueRangeRecord.class);
+		result.addTestSuite(TestCellRange.class);
 		return result;
 	}
 }
diff --git a/src/testcases/org/apache/poi/hssf/record/TestCFHeaderRecord.java b/src/testcases/org/apache/poi/hssf/record/TestCFHeaderRecord.java
index 2a6faaccdd..e883503674 100644
--- a/src/testcases/org/apache/poi/hssf/record/TestCFHeaderRecord.java
+++ b/src/testcases/org/apache/poi/hssf/record/TestCFHeaderRecord.java
@@ -17,6 +17,7 @@
 
 package org.apache.poi.hssf.record;
 
+import junit.framework.AssertionFailedError;
 import junit.framework.TestCase;
 
 import org.apache.poi.hssf.record.cf.CellRange;
@@ -34,8 +35,8 @@ public final class TestCFHeaderRecord extends TestCase
 	{
 		CFHeaderRecord record = new CFHeaderRecord();
 		CellRange[] ranges = {
-			new CellRange(0,-1,5,5),
-			new CellRange(0,-1,6,6),
+			new CellRange(0,0xFFFF,5,5),
+			new CellRange(0,0xFFFF,6,6),
 			new CellRange(0,1,0,1),
 			new CellRange(0,1,2,3),
 			new CellRange(2,3,0,1),
@@ -46,7 +47,7 @@ public final class TestCFHeaderRecord extends TestCase
 		assertEquals(6,ranges.length);
 		CellRange enclosingCellRange = record.getEnclosingCellRange();
 		assertEquals(0, enclosingCellRange.getFirstRow());
-		assertEquals(-1, enclosingCellRange.getLastRow());
+		assertEquals(65535, enclosingCellRange.getLastRow());
 		assertEquals(0, enclosingCellRange.getFirstColumn());
 		assertEquals(6, enclosingCellRange.getLastColumn());
 		record.setNeedRecalculation(true);
@@ -56,7 +57,7 @@ public final class TestCFHeaderRecord extends TestCase
 	}
 	
 	public void testSerialization() {
-		byte[] recordData = new byte[]
+		byte[] recordData = 
 		{
 			(byte)0x03, (byte)0x00,
 			(byte)0x01,	(byte)0x00,
@@ -66,7 +67,7 @@ public final class TestCFHeaderRecord extends TestCase
 			(byte)0x00,	(byte)0x00,
 			(byte)0x03,	(byte)0x00,
 			
-			(byte)0x04,	(byte)0x00,
+			(byte)0x04,	(byte)0x00, // nRegions
 			
 			(byte)0x00,	(byte)0x00,
 			(byte)0x01,	(byte)0x00,
@@ -93,44 +94,88 @@ public final class TestCFHeaderRecord extends TestCase
 
 		assertEquals("#CFRULES", 3, record.getNumberOfConditionalFormats());
 		assertTrue(record.getNeedRecalculation());
-		CellRange enclosingCellRange = record.getEnclosingCellRange();
-		assertEquals(0, enclosingCellRange.getFirstRow());
-		assertEquals(3, enclosingCellRange.getLastRow());
-		assertEquals(0, enclosingCellRange.getFirstColumn());
-		assertEquals(3, enclosingCellRange.getLastColumn());
+		confirm(record.getEnclosingCellRange(), 0, 3, 0, 3);
 		CellRange[] ranges = record.getCellRanges();
-		CellRange range0 = ranges[0];
-		assertEquals(0, range0.getFirstRow());
-		assertEquals(1, range0.getLastRow());
-		assertEquals(0, range0.getFirstColumn());
-		assertEquals(1, range0.getLastColumn());
-		CellRange range1 = ranges[1];
-		assertEquals(0, range1.getFirstRow());
-		assertEquals(1, range1.getLastRow());
-		assertEquals(2, range1.getFirstColumn());
-		assertEquals(3, range1.getLastColumn());
-		CellRange range2 = ranges[2];
-		assertEquals(2, range2.getFirstRow());
-		assertEquals(3, range2.getLastRow());
-		assertEquals(0, range2.getFirstColumn());
-		assertEquals(1, range2.getLastColumn());
-		CellRange range3 = ranges[3];
-		assertEquals(2, range3.getFirstRow());
-		assertEquals(3, range3.getLastRow());
-		assertEquals(2, range3.getFirstColumn());
-		assertEquals(3, range3.getLastColumn());
+		assertEquals(4, ranges.length);
+		confirm(ranges[0], 0, 1, 0, 1);
+		confirm(ranges[1], 0, 1, 2, 3);
+		confirm(ranges[2], 2, 3, 0, 1);
+		confirm(ranges[3], 2, 3, 2, 3);
 		assertEquals(recordData.length+4, record.getRecordSize());
 
 		byte[] output = record.serialize();
 
 		assertEquals("Output size", recordData.length+4, output.length); //includes sid+recordlength
 
-		for (int i = 0; i < recordData.length;i++) 
+		for (int i = 0; i < recordData.length; i++) 
 		{
 			assertEquals("CFHeaderRecord doesn't match", recordData[i], output[i+4]);
 		}
 	}
 	
+	public void testExtremeRows() {
+		byte[] recordData = {
+			(byte)0x13, (byte)0x00, // nFormats
+			(byte)0x00,	(byte)0x00,
+			
+			(byte)0x00,	(byte)0x00,
+			(byte)0xFF,	(byte)0xFF,
+			(byte)0x00,	(byte)0x00,
+			(byte)0xFF,	(byte)0x00,
+			
+			(byte)0x03,	(byte)0x00, // nRegions
+			
+			(byte)0x40,	(byte)0x9C,
+			(byte)0x50,	(byte)0xC3,
+			(byte)0x02,	(byte)0x00,
+			(byte)0x02,	(byte)0x00,
+			
+			(byte)0x00,	(byte)0x00,
+			(byte)0xFF,	(byte)0xFF,
+			(byte)0x05,	(byte)0x00,
+			(byte)0x05,	(byte)0x00,
+			
+			(byte)0x07,	(byte)0x00,
+			(byte)0x07,	(byte)0x00,
+			(byte)0x00,	(byte)0x00,
+			(byte)0xFF,	(byte)0x00,
+		};
+
+		CFHeaderRecord record;
+		try {
+			record = new CFHeaderRecord(new TestcaseRecordInputStream(CFHeaderRecord.sid, (short)recordData.length, recordData));
+		} catch (IllegalArgumentException e) {
+			if(e.getMessage().equals("invalid cell range (-25536, 2, -15536, 2)")) {
+				throw new AssertionFailedError("Identified bug 44739b");
+			}
+			throw e;
+		}
+
+		assertEquals("#CFRULES", 19, record.getNumberOfConditionalFormats());
+		assertFalse(record.getNeedRecalculation());
+		confirm(record.getEnclosingCellRange(), 0, 65535, 0, 255);
+		CellRange[] ranges = record.getCellRanges();
+		assertEquals(3, ranges.length);
+		confirm(ranges[0], 40000, 50000, 2, 2);
+		confirm(ranges[1], 0, 65535, 5, 5);
+		confirm(ranges[2], 7, 7, 0, 255);
+
+		byte[] output = record.serialize();
+
+		assertEquals("Output size", recordData.length+4, output.length); //includes sid+recordlength
+
+		for (int i = 0; i < recordData.length;i++) {
+			assertEquals("CFHeaderRecord doesn't match", recordData[i], output[i+4]);
+		}
+	}
+	
+
+	private static void confirm(CellRange cr, int expFirstRow, int expLastRow, int expFirstCol, int expLastColumn) {
+		assertEquals("first row", expFirstRow, cr.getFirstRow());
+		assertEquals("last row", expLastRow, cr.getLastRow());
+		assertEquals("first column", expFirstCol, cr.getFirstColumn());
+		assertEquals("last column", expLastColumn, cr.getLastColumn());
+	}
 
 	public static void main(String[] ignored_args)
 	{
diff --git a/src/testcases/org/apache/poi/hssf/record/cf/TestCellRange.java b/src/testcases/org/apache/poi/hssf/record/cf/TestCellRange.java
index ade097e697..2ba196d55a 100644
--- a/src/testcases/org/apache/poi/hssf/record/cf/TestCellRange.java
+++ b/src/testcases/org/apache/poi/hssf/record/cf/TestCellRange.java
@@ -17,62 +17,76 @@ limitations under the License.
 
 package org.apache.poi.hssf.record.cf;
 
+import junit.framework.AssertionFailedError;
 import junit.framework.TestCase;
 
 /**
  * Tests CellRange operations.
  */
-public class TestCellRange extends TestCase
+public final class TestCellRange extends TestCase
 {
-	private static final CellRange biggest     = new CellRange( 0, -1, 0,-1);
-	private static final CellRange tenthColumn = new CellRange( 0, -1,10,10);
-	private static final CellRange tenthRow    = new CellRange(10, 10, 0,-1);
-	private static final CellRange box10x10    = new CellRange( 0, 10, 0,10);
-	private static final CellRange box9x9      = new CellRange( 0,  9, 0, 9);
-	private static final CellRange box10to20c  = new CellRange( 0, 10,10,20);
-	private static final CellRange oneCell     = new CellRange(10, 10,10,10);
+	private static final CellRange biggest     = createCR( 0, -1, 0,-1);
+	private static final CellRange tenthColumn = createCR( 0, -1,10,10);
+	private static final CellRange tenthRow    = createCR(10, 10, 0,-1);
+	private static final CellRange box10x10    = createCR( 0, 10, 0,10);
+	private static final CellRange box9x9      = createCR( 0,  9, 0, 9);
+	private static final CellRange box10to20c  = createCR( 0, 10,10,20);
+	private static final CellRange oneCell     = createCR(10, 10,10,10);
 
-	boolean [][] contanis = new boolean[][]
+	private static final CellRange[] sampleRanges = {
+		biggest, tenthColumn, tenthRow, box10x10, box9x9, box10to20c, oneCell,
+	};
+	
+	/** cross-reference of <tt>contains()</tt> operations for sampleRanges against itself */
+	private static final boolean [][] containsExpectedResults = 
     {
-        		//           biggest, tenthColumn, tenthRow, box10x10, box9x9, box10to20c, oneCell
-  /*biggest    */ new boolean[]{true,       true ,    true ,    true ,  true ,      true ,  true},	
-  /*tenthColumn*/ new boolean[]{false,      true ,    false,    false,  false,      false,  true},	
-  /*tenthRow   */ new boolean[]{false,      false,    true ,    false,  false,      false,  true},	
-  /*box10x10   */ new boolean[]{false,      false,    false,    true ,  true ,      false,  true},	
-  /*box9x9     */ new boolean[]{false,      false,    false,    false,  true ,      false, false},	
-  /*box10to20c */ new boolean[]{false,      false,    false,    false,  false,      true ,  true},	
-  /*oneCell    */ new boolean[]{false,      false,    false,    false,  false,      false,  true},	
+	//               biggest, tenthColumn, tenthRow, box10x10, box9x9, box10to20c, oneCell
+	/*biggest    */ {true,       true ,    true ,    true ,    true ,      true ,  true},	
+	/*tenthColumn*/ {false,      true ,    false,    false,    false,      false,  true},	
+	/*tenthRow   */ {false,      false,    true ,    false,    false,      false,  true},	
+	/*box10x10   */ {false,      false,    false,    true ,    true ,      false,  true},	
+	/*box9x9     */ {false,      false,    false,    false,    true ,      false, false},	
+	/*box10to20c */ {false,      false,    false,    false,    false,      true ,  true},	
+	/*oneCell    */ {false,      false,    false,    false,    false,      false,  true},	
      } ;
-	
-	
-	public void testContainsMethod()
-	{
-		CellRange [] ranges = new CellRange[]{biggest,tenthColumn,tenthRow,box10x10,box9x9,box10to20c,oneCell};
-		testContainsMethod(contanis,ranges);
+
+	/**
+	 * @param lastRow pass -1 for max row index 
+	 * @param lastCol pass -1 for max col index
+	 */
+	private static CellRange createCR(int firstRow, int lastRow, int firstCol, int lastCol) {
+		// max row & max col limit as per BIFF8
+		return new CellRange(
+				firstRow, 
+				lastRow == -1 ? 0xFFFF : lastRow, 
+				firstCol,
+				lastCol == -1 ? 0x00FF : lastCol);
 	}
 	
-	private void testContainsMethod(boolean[][]contains,CellRange[] ranges)
+	public void testContainsMethod()
 	{
+		CellRange [] ranges = sampleRanges;
 		for(int i=0; i!=ranges.length;i++)
 		{
 			for(int j=0; j!=ranges.length;j++)
 			{
-				assertEquals("("+i+","+j+"): ",contains[i][j],ranges[i].contains(ranges[j]));
+				boolean expectedResult = containsExpectedResults[i][j];
+				assertEquals("("+i+","+j+"): ", expectedResult, ranges[i].contains(ranges[j]));
 			}
 		}
 	}
 
-	private static final CellRange col1     = new CellRange( 0, -1, 1,1);
-	private static final CellRange col2     = new CellRange( 0, -1, 2,2);
-	private static final CellRange row1     = new CellRange( 1,  1, 0,-1);
-	private static final CellRange row2     = new CellRange( 2,  2, 0,-1);
+	private static final CellRange col1     = createCR( 0, -1, 1,1);
+	private static final CellRange col2     = createCR( 0, -1, 2,2);
+	private static final CellRange row1     = createCR( 1,  1, 0,-1);
+	private static final CellRange row2     = createCR( 2,  2, 0,-1);
 
-	private static final CellRange box0     = new CellRange( 0, 2, 0,2);
-	private static final CellRange box1     = new CellRange( 0, 1, 0,1);
-	private static final CellRange box2     = new CellRange( 0, 1, 2,3);
-	private static final CellRange box3     = new CellRange( 2, 3, 0,1);
-	private static final CellRange box4     = new CellRange( 2, 3, 2,3);
-	private static final CellRange box5     = new CellRange( 1, 3, 1,3);
+	private static final CellRange box0     = createCR( 0, 2, 0,2);
+	private static final CellRange box1     = createCR( 0, 1, 0,1);
+	private static final CellRange box2     = createCR( 0, 1, 2,3);
+	private static final CellRange box3     = createCR( 2, 3, 0,1);
+	private static final CellRange box4     = createCR( 2, 3, 2,3);
+	private static final CellRange box5     = createCR( 1, 3, 1,3);
 
 	public void testHasSharedBorderMethod()
 	{
@@ -119,8 +133,8 @@ public class TestCellRange extends TestCase
 
 	public void testIntersectMethod()
 	{
-		assertEquals( CellRange.OVERLAP,box0.intersect(box5));
-		assertEquals( CellRange.OVERLAP,box5.intersect(box0));
+		assertEquals(CellRange.OVERLAP,box0.intersect(box5));
+		assertEquals(CellRange.OVERLAP,box5.intersect(box0));
 		assertEquals(CellRange.NO_INTERSECTION,box1.intersect(box4));
 		assertEquals(CellRange.NO_INTERSECTION,box4.intersect(box1));
 		assertEquals(CellRange.NO_INTERSECTION,box2.intersect(box3));
@@ -135,4 +149,31 @@ public class TestCellRange extends TestCase
 		assertEquals(CellRange.INSIDE,tenthColumn.intersect(tenthColumn));
 		assertEquals(CellRange.INSIDE,tenthRow.intersect(tenthRow));
 	}
+	
+	/**
+	 * Cell ranges like the following are valid
+	 * =$C:$IV,$B$1:$B$8,$B$10:$B$65536,$A:$A
+	 */
+	public void testCreate() {
+		CellRange cr;
+		
+		cr = createCR(0, -1, 2, 255); // $C:$IV
+		confirmRange(cr, false, true);
+		cr = createCR(0, 7, 1, 1); // $B$1:$B$8
+		
+		try {
+			cr = createCR(9, -1, 1, 1); // $B$65536
+		} catch (IllegalArgumentException e) {
+			if(e.getMessage().startsWith("invalid cell range")) {
+				throw new AssertionFailedError("Identified bug 44739");
+			}
+			throw e;
+		}
+		cr = createCR(0, -1, 0, 0); // $A:$A
+	}
+
+	private static void confirmRange(CellRange cr, boolean isFullRow, boolean isFullColumn) {
+		assertEquals("isFullRowRange", isFullRow, cr.isFullRowRange());
+		assertEquals("isFullColumnRange", isFullColumn, cr.isFullColumnRange());
+	}
 }