missing tests for Bug 55041 - CODE formula support

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1488810 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/ss/formula/eval/FunctionEval.java

@@ -151,6 +151,7 @@ public final class FunctionEval {
 		retval[118] = TextFunction.TRIM;
 		retval[119] = new Replace();
 		retval[120] = new Substitute();
+        retval[121] = new Code();
 
 		retval[124] = TextFunction.FIND;
 

src/testcases/org/apache/poi/ss/formula/functions/TestCodeFunctionsFromSpreadsheet.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 CODE() as loaded from a test data spreadsheet.<p/>
+ *
+ * @author cedric dot walter @ gmail dot com
+ */
+public class TestCodeFunctionsFromSpreadsheet extends BaseTestFunctionsFromSpreadsheet {
+
+    @Override
+    protected String getFilename() {
+        return "CodeFunctionTestCaseData.xls";
+    }
+}