add OpenLayers.Util.upperCaseObject() function and test

git-svn-id: http://svn.openlayers.org/trunk/openlayers@491 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Util.js

@@ -785,6 +785,23 @@ OpenLayers.Util.createAlphaImageDiv = function(id, px, sz, imgURL,
 };
 
 
+/** Creates a new hash and copies over all the keys from the 
+*    passed-in object, but storing them under an uppercased
+*    version of the key at which they were stored.
+* 
+* @param {Object} object
+*
+* @returns A new Object with all the same keys but uppercased
+* @type Object
+*/
+OpenLayers.Util.upperCaseObject = function (object) {
+    var uObject = new Object();
+    for (var key in object) {
+        uObject[key.toUpperCase()] = object[key];
+    }
+    return uObject;
+};
+
 /** Takes a hash and copies any keys that don't exist from
 *   another hash, by analogy with Object.extend() from
 *   Prototype.js.

tests/test_Util.html

@@ -355,6 +355,38 @@
         }        
    
     }
+       
+    function test_10_Util_upperCaseObject(t) {
+    
+        t.plan(8);
+        
+        var aKey = "chicken";
+        var aValue = "pot pie";
+
+        var bKey = "blorg";
+        var bValue = "us maximus";
+        
+        var obj = new Object();
+        obj[aKey] = aValue;        
+        obj[bKey] = bValue;        
+             
+        var uObj = OpenLayers.Util.upperCaseObject(obj);          
+
+        //make sure old object not modified
+        t.eq(obj[aKey], aValue, "old lowercase value still present in old obj");
+        t.eq(obj[bKey], bValue, "old lowercase value still present in old obj");
+
+        t.eq(obj[aKey.toUpperCase()], null, "new uppercase value not present in old obj");
+        t.eq(obj[bKey.toUpperCase()], null, "new uppercase value not present in old obj");
+
+        //make sure new object modified
+        t.eq(uObj[aKey], null, "old lowercase value not present");
+        t.eq(uObj[bKey], null, "old lowercase value not present");
+
+        t.eq(uObj[aKey.toUpperCase()], aValue, "new uppercase value present");
+        t.eq(uObj[bKey.toUpperCase()], bValue, "new uppercase value present");
+    }
+    
   // -->
   </script>
 </head>