adding a random picker api

lib/tbd.js

@@ -76,4 +76,20 @@
             return new ObjectBuilder(schema);
         }
     };
+}).call(this);
+
+(function() {
+    var utils = {};
+
+    utils.random = function() {
+        var args = [].slice.call(arguments);
+
+        return function() {
+            var random = Math.random();
+
+            return args[Math.floor(random * args.length)];
+        };
+    };
+
+    this.tbd.utils = utils;
 }).call(this);

tests/util-random-spec.js

@@ -0,0 +1,23 @@
+describe('tbd-util-random', function() {
+    var tbd = require('../lib/');
+
+    beforeEach(function() {
+        this.addMatchers({
+            toBeInArray: function(array) {
+                return ~array.indexOf(this.actual);
+            }
+        });
+    });
+
+    it('should have a random generator api', function() {
+        expect(tbd.utils.random).toBeDefined();
+    });
+
+    it('should allow random generation from arguments', function() {
+        var data = tbd.from({ foo: 1 })
+                    .prop('foo').use(tbd.utils.random(1,2,3,4,5)).done()
+                    .make(1);
+
+        expect(data[0].foo).toBeInArray([1,2,3,4,5]);
+    });
+});