Merge pull request #408 from paolo-tanium/allow-mac-to-specify-separator

[api] Allow user to specify separator to be used in mac address

lib/internet.js

@@ -305,13 +305,23 @@ var Internet = function (faker) {
    * mac
    *
    * @method faker.internet.mac
+   * @param {string} sep
    */
-  self.mac = function(){
-      var i, mac = "";
+  self.mac = function(sep){
+      var i, 
+        mac = "",
+        validSep = ':';
+
+      // if the client passed in a different separator than `:`, 
+      // we will use it if it is in the list of acceptable separators (dash or no separator)
+      if (['-', ''].indexOf(sep) !== -1) {
+        validSep = sep;
+      } 
+
       for (i=0; i < 12; i++) {
           mac+= faker.random.number(15).toString(16);
           if (i%2==1 && i != 11) {
-              mac+=":";
+              mac+=validSep;
           }
       }
       return mac;

test/internet.unit.js

@@ -173,5 +173,23 @@ describe("internet.js", function () {
             var mac = faker.internet.mac();
             assert.ok(mac.match(/^([a-f0-9]{2}:){5}[a-f0-9]{2}$/));
         });
+
+        it("uses the dash separator if we pass it in as our separator", function () {
+            var mac = faker.internet.mac('-');
+            assert.ok(mac.match(/^([a-f0-9]{2}-){5}[a-f0-9]{2}$/));
+        });
+
+        it("uses no separator if we pass in an empty string", function() {
+            var mac = faker.internet.mac('');
+            assert.ok(mac.match(/^[a-f0-9]{12}$/));
+        });
+
+        it("uses the default colon (:) if we provide an unacceptable separator", function() {
+            var mac = faker.internet.mac('!');
+            assert.ok(mac.match(/^([a-f0-9]{2}:){5}[a-f0-9]{2}$/));
+
+            mac = faker.internet.mac('&');
+            assert.ok(mac.match(/^([a-f0-9]{2}:){5}[a-f0-9]{2}$/));
+        });
     });
 });