Bug 57231: Add missing ArrayRecord.clone()

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1647255 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/record/ArrayRecord.java

@@ -95,4 +95,14 @@ public final class ArrayRecord extends SharedValueRecordBase {
 		sb.append("]");
 		return sb.toString();
 	}	
+    
+    public Object clone() {
+        ArrayRecord rec = new ArrayRecord(_formula.copy(), getRange());
+
+        // they both seem unused, but clone them nevertheless to have an exact copy
+        rec._options = _options;
+        rec._field3notUsed = _field3notUsed;
+
+        return rec;
+    }
 }

src/testcases/org/apache/poi/hssf/record/TestArrayRecord.java

@@ -19,14 +19,17 @@ package org.apache.poi.hssf.record;
 
 import junit.framework.TestCase;
 
+import org.apache.poi.hssf.HSSFTestDataSamples;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.hssf.util.CellRangeAddress8Bit;
-import org.apache.poi.ss.formula.ptg.Ptg;
+import org.apache.poi.ss.formula.Formula;
 import org.apache.poi.ss.formula.FormulaParser;
 import org.apache.poi.ss.formula.FormulaRenderer;
 import org.apache.poi.ss.formula.FormulaType;
-import org.apache.poi.ss.formula.Formula;
-import org.apache.poi.util.HexRead;
+import org.apache.poi.ss.formula.ptg.Ptg;
 import org.apache.poi.util.HexDump;
+import org.apache.poi.util.HexRead;
 
 public final class TestArrayRecord extends TestCase {
 
@@ -53,7 +56,22 @@ public final class TestArrayRecord extends TestCase {
         byte[] ser = r2.serialize();
         //serialize and check that the data is the same as in r1
         assertEquals(HexDump.toHex(data), HexDump.toHex(ser));
+    }
 
+    public void testBug57231() {
+        HSSFWorkbook wb = HSSFTestDataSamples
+                .openSampleWorkbook("57231_MixedGasReport.xls");
+        HSSFSheet sheet = wb.getSheet("master");
 
+        HSSFSheet newSheet = wb.cloneSheet(wb.getSheetIndex(sheet));
+        int idx = wb.getSheetIndex(newSheet);
+        wb.setSheetName(idx, "newName");
+
+        // Write the output to a file
+        HSSFWorkbook wbBack = HSSFTestDataSamples.writeOutAndReadBack(wb);
+        assertNotNull(wbBack);
+
+        assertNotNull(wbBack.getSheet("master"));
+        assertNotNull(wbBack.getSheet("newName"));
     }
 }