Added junit for bug 45732 (fix was earlier, probably in r694631)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@696109 13f79535-47bb-0310-9956-ffa450edef68

src/testcases/org/apache/poi/hssf/record/formula/functions/AllIndividualFunctionEvaluationTests.java

@@ -41,6 +41,7 @@ public final class AllIndividualFunctionEvaluationTests {
 		result.addTestSuite(TestMid.class);
 		result.addTestSuite(TestMathX.class);
 		result.addTestSuite(TestMatch.class);
+		result.addTestSuite(TestNper.class);
 		result.addTestSuite(TestPmt.class);
 		result.addTestSuite(TestOffset.class);
 		result.addTestSuite(TestRowCol.class);

src/testcases/org/apache/poi/hssf/record/formula/functions/TestNper.java

@@ -0,0 +1,77 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hssf.record.formula.functions;
+
+import org.apache.poi.hssf.record.formula.eval.Eval;
+import org.apache.poi.hssf.record.formula.eval.NumberEval;
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFErrorConstants;
+import org.apache.poi.hssf.usermodel.HSSFFont;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+
+import junit.framework.AssertionFailedError;
+import junit.framework.TestCase;
+
+/**
+ * 
+ * @author Josh Micich
+ */
+public final class TestNper extends TestCase {
+	public void testSimpleEvaluate() {
+		
+		Eval[] args = {
+			new NumberEval(0.05),
+			new NumberEval(250),
+			new NumberEval(-1000),
+		};
+		Eval result = FinanceFunction.NPER.evaluate(args, 0, (short)0);
+		
+		assertEquals(NumberEval.class, result.getClass());
+		assertEquals(4.57353557, ((NumberEval)result).getNumberValue(), 0.00000001);
+	}
+	
+	public void testEvaluate_bug_45732() {
+// TODO - fix deprecated code etc
+		HSSFWorkbook wb = new HSSFWorkbook();
+		HSSFSheet sheet = wb.createSheet("Sheet1");
+		HSSFCell cell = sheet.createRow(0).createCell((short)0);
+		
+		cell.setCellFormula("NPER(12,4500,100000,100000)");
+		cell.setCellValue(15.0);
+		assertEquals("NPER(12,4500,100000.0,100000.0)", cell.getCellFormula());
+//		assertEquals(HSSFCell.CELL_TYPE_NUMERIC, cell.getCachedFormulaResultType());
+		assertEquals(15.0, cell.getNumericCellValue(), 0.0);
+		
+		HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(sheet, wb);
+		fe.setCurrentRow(sheet.getRow(0));
+		fe.evaluateFormulaCell(cell);
+//		assertEquals(HSSFCell.CELL_TYPE_ERROR, cell.getCachedFormulaResultType());
+		try {
+			if(cell.getNumericCellValue() == 15.0) {
+				throw new AssertionFailedError("Identified bug 45732");
+			}
+		} catch (RuntimeException e) {
+			// expected during successful test
+			assertEquals("Cannot get a numeric value from a error formula cell", e.getMessage());
+		}
+		assertEquals(HSSFErrorConstants.ERROR_NUM, cell.getErrorCellValue());
+	}
+	
+}