Bug 55043: patch for missing function QUOTIENT

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1514847 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/ss/formula/atp/AnalysisToolPak.java

@@ -39,8 +39,6 @@ public final class AnalysisToolPak implements UDFFinder {
         }
     }
 
-    ;
-
     private final Map<String, FreeRefFunction> _functionsByName = createFunctionsMap();
 
     private AnalysisToolPak() {
@@ -148,7 +146,7 @@ public final class AnalysisToolPak implements UDFFinder {
         r(m, "PRICE", null);
         r(m, "PRICEDISC", null);
         r(m, "PRICEMAT", null);
-        r(m, "QUOTIENT", null);
+        r(m, "QUOTIENT", Quotient.instance);
         r(m, "RANDBETWEEN", RandBetween.instance);
         r(m, "RECEIVED", null);
         r(m, "RTD", null);

src/java/org/apache/poi/ss/formula/functions/Quotient.java

@@ -17,6 +17,7 @@
 
 package org.apache.poi.ss.formula.functions;
 
+import org.apache.poi.ss.formula.OperationEvaluationContext;
 import org.apache.poi.ss.formula.eval.ValueEval;
 
 import org.apache.poi.ss.formula.eval.*;
@@ -35,8 +36,12 @@ import org.apache.poi.ss.formula.eval.*;
  *
  * If either enumerator/denominator is non numeric, QUOTIENT returns the #VALUE! error value.
  * If denominator is equals to zero, QUOTIENT returns the #DIV/0! error value.
+ *
+ * @author Cédric Walter
  */
-public class Quotient extends Fixed2ArgFunction {
+public class Quotient extends Fixed2ArgFunction implements FreeRefFunction {
+
+    public static final FreeRefFunction instance = new Quotient();
 
     public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval venumerator, ValueEval vedenominator) {
 
@@ -58,6 +63,13 @@ public class Quotient extends Fixed2ArgFunction {
             return ErrorEval.DIV_ZERO;
         }
 
-        return new StringEval(String.valueOf((int)(enumerator / denominator)));
+        return new NumberEval((int)(enumerator / denominator));
+    }
+
+    public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {
+        if (args.length != 2) {
+            return ErrorEval.VALUE_INVALID;
+        }
+        return evaluate(ec.getRowIndex(), ec.getColumnIndex(), args[0], args[1]);
     }
 }

src/testcases/org/apache/poi/ss/formula/functions/TestQuotient.java

@@ -18,6 +18,7 @@ package org.apache.poi.ss.formula.functions;
 
 import junit.framework.TestCase;
 import org.apache.poi.ss.formula.eval.ErrorEval;
+import org.apache.poi.ss.formula.eval.NumberEval;
 import org.apache.poi.ss.formula.eval.StringEval;
 import org.apache.poi.ss.formula.eval.ValueEval;
 
@@ -34,8 +35,8 @@ public class TestQuotient extends TestCase {
 
     private static void confirmValue(String msg, String numerator, String denominator, String expected) {
         ValueEval result = invokeValue(numerator, denominator);
-        assertEquals(StringEval.class, result.getClass());
+        assertEquals(NumberEval.class, result.getClass());
-        assertEquals(msg, expected, ((StringEval) result).getStringValue());
+        assertEquals(msg, expected, ((NumberEval) result).getStringValue());
     }
 
     private static void confirmValueError(String msg, String numerator, String denominator, ErrorEval numError) {
@@ -58,6 +59,6 @@ public class TestQuotient extends TestCase {
         confirmValueError("numerator is nonnumeric", "ABCD", "", ErrorEval.VALUE_INVALID);
         confirmValueError("denominator is nonnumeric", "", "ABCD", ErrorEval.VALUE_INVALID);
 
-        confirmValueError("denominator is nonnumeric", "3.14159", "0", ErrorEval.DIV_ZERO);
+        confirmValueError("dividing by zero", "3.14159", "0", ErrorEval.DIV_ZERO);
     }
 }

src/testcases/org/apache/poi/ss/formula/functions/TestQuotientFunctionsFromSpreadsheet.java

@@ -0,0 +1,31 @@
+/* ====================================================================
+   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.ss.formula.functions;
+
+/**
+ * Tests QUOTIENT() as loaded from a test data spreadsheet.<p/>
+ *
+ * @author cedric dot walter @ gmail dot com
+ */
+public class TestQuotientFunctionsFromSpreadsheet extends BaseTestFunctionsFromSpreadsheet {
+
+    @Override
+    protected String getFilename() {
+        return "QuotientFunctionTestCaseData.xls";
+    }
+}