Merge pull request #25 from felixfbecker/default-value-resolver

Default value resolver

src/Application.php

@@ -21,6 +21,7 @@
 use Interop\Container\ContainerInterface;
 use Invoker\CallableResolver;
 use Invoker\ParameterResolver\AssociativeArrayResolver;
+use Invoker\ParameterResolver\DefaultValueResolver;
 use Invoker\ParameterResolver\Container\TypeHintContainerResolver;
 use Invoker\ParameterResolver\ResolverChain;
 
@@ -77,6 +78,7 @@ public function __construct(ContainerBuilder $containerBuilder = null, array $va
                 new ResolverChain([
                     new AssociativeArrayResolver,
                     new TypeHintContainerResolver($this->containerInteropProxy),
+                    new DefaultValueResolver,
                 ])
             );
         });

tests/FunctionalTest.php

@@ -78,6 +78,21 @@ public function should_pass_request_object_by_parameter_name()
         $this->assertEquals('Hello john', $response->getContent());
     }
 
+    /**
+     * @test
+     */
+    public function should_resolve_default_parameter()
+    {
+        $app = $this->createApplication();
+
+        $app->get('/', function ($optional = null) {
+            return 'Hello';
+        });
+
+        $response = $app->handle(Request::create('/?name=john'));
+        $this->assertEquals('Hello', $response->getContent());
+    }
+
     /**
      * @test
      */