create a Test folder for each pattern

Creational/Builder/Tests/DirectorTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace DesignPatterns\Creational\Builder\Tests;
+
+use DesignPatterns\Creational\Builder\Director;
+use DesignPatterns\Creational\Builder\CarBuilder;
+use DesignPatterns\Creational\Builder\BikeBuilder;
+use DesignPatterns\Creational\Builder\BuilderInterface;
+
+/**
+ * DirectorTest tests the builder pattern
+ */
+class DirectorTest extends \PHPUnit_Framework_TestCase
+{
+
+    protected $director;
+
+    protected function setUp()
+    {
+        $this->director = new Director();
+    }
+
+    public function getBuilder()
+    {
+        return array(
+            array(new CarBuilder()),
+            array(new BikeBuilder())
+        );
+    }
+
+    /**
+     * Here we test the build process. Notice that the client don't know
+     * anything about the contrete builder.
+     * 
+     * @dataProvider getBuilder
+     */
+    public function testBuild(BuilderInterface $builder)
+    {
+        $newVehicle = $this->director->build($builder);
+        $this->assertInstanceOf('DesignPatterns\Creational\Builder\Parts\Vehicle', $newVehicle);
+    }
+}