One more test

lib/model.js

@@ -645,12 +645,12 @@ logicalOperators.$not = function (obj, query) {
  * @param {Model} obj
  * @param {Query} query
  */
-logicalOperators.$where = function (obj, func) {
+logicalOperators.$where = function (obj, fn) {
   var result;
 
-  if (!_.isFunction(func)) { throw "$where operator used without a function"; }
+  if (!_.isFunction(fn)) { throw "$where operator used without a function"; }
 
-  result = func.call(obj);
+  result = fn.call(obj);
   if (!_.isBoolean(result)) { throw "$where function must return boolean"; }
 
   return result;

test/model.test.js

@@ -1172,7 +1172,7 @@ describe('Model', function () {
     });
 
 
-    describe('Logical operator $where', function () {
+    describe('Comparison operator $where', function () {
 
       it('Function should match and not match correctly', function () {
         model.match({ a: 4}, { $where: function () { return this.a === 4; } }).should.equal(true);
@@ -1186,6 +1186,18 @@ describe('Model', function () {
       it('Should throw an error if the $where function returns a non-boolean', function () {
         (function () { model.match({ a: 4 }, { $where: function () { return 'not a boolean'; } }); }).should.throw();
       });
+      
+      it('Should be able to do the complex matching it must be used for', function () {
+        var checkEmail = function() {
+          if (!this.firstName || !this.lastName) { return false; }
+          return this.firstName.toLowerCase() + "." + this.lastName.toLowerCase() + "@gmail.com" === this.email;
+        };
+        model.match({ firstName: "John", lastName: "Doe", email: "john.doe@gmail.com" }, { $where: checkEmail }).should.equal(true);
+        model.match({ firstName: "john", lastName: "doe", email: "john.doe@gmail.com" }, { $where: checkEmail }).should.equal(true);
+        model.match({ firstName: "Jane", lastName: "Doe", email: "john.doe@gmail.com" }, { $where: checkEmail }).should.equal(false);
+        model.match({ firstName: "John", lastName: "Deere", email: "john.doe@gmail.com" }, { $where: checkEmail }).should.equal(false);
+        model.match({ lastName: "Doe", email: "john.doe@gmail.com" }, { $where: checkEmail }).should.equal(false);
+      });
 
     });