diff --git a/src/Judge.php b/src/Judge.php
index 99085a7..c526192 100644
--- a/src/Judge.php
+++ b/src/Judge.php
@@ -5,117 +5,117 @@
 class Judge
 {
 
-  private $_config;
-  private $_user;
-
-  /**
-   * @param array|Config $config
-   * @param UserAccessInterface|null $user
-   */
-  public function __construct($config, UserAccessInterface $user)
-  {
-    $this->_config = $config instanceof Config ? $config : new Config($config);
-    $this->_user = $user;
-  }
-
-  /**
-   * @param string|string[] $rights
-   * @param ObjectInterface|null $object
-   * @param UserAccessInterface|null $user
-   * @return bool
-   */
-  public function hasRight($rights, ObjectInterface $object = null, UserAccessInterface $user = null)
-  {
-    $rights = (array) $rights;
-    $user = $user ?: $this->_user;
-    $global_roles = $user->getGlobalRoles();
-
-    // check global rights
-    foreach ($global_roles as $role) {
-      if ($this->_config->has("global.$role.rights")) {
-        if ($this->checkRightsInConfig($rights, $this->_config, "global.$role.rights")) {
-          return true;
-        }
-      }
+    private $_config;
+    private $_user;
+
+    /**
+     * @param array|Config $config
+     * @param UserAccessInterface|null $user
+     */
+    public function __construct($config, UserAccessInterface $user)
+    {
+        $this->_config = $config instanceof Config ? $config : new Config($config);
+        $this->_user = $user;
     }
 
-    if ($object !== null) {
-      $object_config = $this->getObjectConfig($object);
-      $object_identifier = $object_config->get("identifier");
-
-      // check global rights
-      foreach ($global_roles as $role) {
-        if ($this->_config->has("global.$role.related_rights.$object_identifier")) {
-          if ($this->checkRightsInConfig($rights, $this->_config, "global.$role.related_rights.$object_identifier")) {
-            return true;
-          }
+    /**
+     * @param string|string[] $rights
+     * @param ObjectInterface|null $object
+     * @param UserAccessInterface|null $user
+     * @return bool
+     */
+    public function hasRight($rights, ObjectInterface $object = null, UserAccessInterface $user = null)
+    {
+        $rights = (array)$rights;
+        $user = $user ?: $this->_user;
+        $global_roles = $user->getGlobalRoles();
+
+        // check global rights
+        foreach ($global_roles as $role) {
+            if ($this->_config->has("global.$role.rights")) {
+                if ($this->checkRightsInConfig($rights, $this->_config, "global.$role.rights")) {
+                    return true;
+                }
+            }
         }
-      }
 
-      // check object rights
-      foreach ($object->getObjectRoles($user) as $role) {
-        if ($this->checkRightsInConfig($rights, $object_config, "roles.$role.rights")) {
-          return true;
+        if ($object !== null) {
+            $object_config = $this->getObjectConfig($object);
+            $object_identifier = $object_config->get("identifier");
+
+            // check global rights
+            foreach ($global_roles as $role) {
+                if ($this->_config->has("global.$role.related_rights.$object_identifier")) {
+                    if ($this->checkRightsInConfig($rights, $this->_config, "global.$role.related_rights.$object_identifier")) {
+                        return true;
+                    }
+                }
+            }
+
+            // check object rights
+            foreach ($object->getObjectRoles($user) as $role) {
+                if ($this->checkRightsInConfig($rights, $object_config, "roles.$role.rights")) {
+                    return true;
+                }
+            }
+
+            // check object related rights
+            foreach ($object->getRelatedObjects() as $related) {
+                $related_config = $this->getObjectConfig($related);
+                foreach ($related->getObjectRoles($user) as $role) {
+                    if ($this->checkRightsInConfig($rights, $related_config, "roles.$role.related_rights.$object_identifier")) {
+                        return true;
+                    }
+                }
+            }
         }
-      }
-
-      // check object related rights
-      foreach ($object->getRelatedObjects() as $related) {
-        $related_config = $this->getObjectConfig($related);
-        foreach ($related->getObjectRoles($user) as $role) {
-          if ($this->checkRightsInConfig($rights, $related_config, "roles.$role.related_rights.$object_identifier")) {
-            return true;
-          }
+
+        return false;
+    }
+
+    /**
+     * @param string $role
+     * @param ObjectInterface|null $object
+     * @param UserAccessInterface|null $user
+     * @return bool
+     */
+    public function hasRole($role, ObjectInterface $object = null, UserAccessInterface $user = null)
+    {
+        $user = $user ?: $this->_user;
+        return in_array($role, $object == null ? $user->getGlobalRoles() : $object->getObjectRoles($user));
+    }
+
+    /**
+     * @param ObjectInterface $object
+     * @throws \RuntimeException
+     * @return Config
+     */
+    private function getObjectConfig(ObjectInterface $object)
+    {
+        $object_class = get_class($object);
+        if ($this->_config->has("objects.$object_class")) {
+            return new Config($this->_config->get("objects.$object_class"));
         }
-      }
+        throw new \RuntimeException("Given object is not configured for judge.");
+    }
+
+    /**
+     * @param array $rights
+     * @param Config $config
+     * @param $path
+     * @return bool
+     */
+    private function checkRightsInConfig(array $rights, Config $config, $path)
+    {
+        return $config->has($path) && empty(array_diff($rights, $config->get($path)));
     }
 
-    return false;
-  }
-
-  /**
-   * @param string $role
-   * @param ObjectInterface|null $object
-   * @param UserAccessInterface|null $user
-   * @return bool
-   */
-  public function hasRole($role, ObjectInterface $object = null, UserAccessInterface $user = null)
-  {
-    $user = $user ?: $this->_user;
-    return in_array($role, $object == null ? $user->getGlobalRoles() : $object->getObjectRoles($user));
-  }
-
-  /**
-   * @param ObjectInterface $object
-   * @throws \RuntimeException
-   * @return Config
-   */
-  private function getObjectConfig(ObjectInterface $object)
-  {
-    $object_class = get_class($object);
-    if ($this->_config->has("objects.$object_class")) {
-      return new Config($this->_config->get("objects.$object_class"));
+    /**
+     * @param UserAccessInterface $user
+     */
+    public function setUser($user)
+    {
+        $this->_user = $user;
     }
-    throw new \RuntimeException("Given object is not configured for judge.");
-  }
-
-  /**
-   * @param array $rights
-   * @param Config $config
-   * @param $path
-   * @return bool
-   */
-  private function checkRightsInConfig(array $rights, Config $config, $path)
-  {
-    return $config->has($path) && empty(array_diff($rights, $config->get($path)));
-  }
-
-  /**
-   * @param UserAccessInterface $user
-   */
-  public function setUser($user)
-  {
-    $this->_user = $user;
-  }
 
 }
\ No newline at end of file
diff --git a/src/ObjectInterface.php b/src/ObjectInterface.php
index 8bb62f4..fcbf6a2 100644
--- a/src/ObjectInterface.php
+++ b/src/ObjectInterface.php
@@ -3,20 +3,20 @@
 interface ObjectInterface
 {
 
-  /**
-   * Returns an array of roles related through this object instance to given user instance.
-   * Keep in mind that there are no recursive checks by AccessControl. You have to do this on your own in this method.
-   *
-   * @param UserAccessInterface $user
-   * @return string[]
-   */
-  public function getObjectRoles(UserAccessInterface $user);
+    /**
+     * Returns an array of roles related through this object instance to given user instance.
+     * Keep in mind that there are no recursive checks by AccessControl. You have to do this on your own in this method.
+     *
+     * @param UserAccessInterface $user
+     * @return string[]
+     */
+    public function getObjectRoles(UserAccessInterface $user);
 
-  /**
-   * Returns an array of relevant objects related to this object instance.
-   *
-   * @return ObjectInterface[]
-   */
-  public function getRelatedObjects();
+    /**
+     * Returns an array of relevant objects related to this object instance.
+     *
+     * @return ObjectInterface[]
+     */
+    public function getRelatedObjects();
 
 }
\ No newline at end of file
diff --git a/src/UserAccessInterface.php b/src/UserAccessInterface.php
index 4eb394e..36862c1 100644
--- a/src/UserAccessInterface.php
+++ b/src/UserAccessInterface.php
@@ -3,11 +3,11 @@
 interface UserAccessInterface
 {
 
-  /**
-   * Returns an array of roles in connection with this user
-   *
-   * @return string[]
-   */
-  public function getGlobalRoles();
+    /**
+     * Returns an array of roles in connection with this user
+     *
+     * @return string[]
+     */
+    public function getGlobalRoles();
 
 }
\ No newline at end of file
diff --git a/tests/AccessControlTest.php b/tests/AccessControlTest.php
index d24563d..615bc83 100644
--- a/tests/AccessControlTest.php
+++ b/tests/AccessControlTest.php
@@ -5,78 +5,78 @@
 class AccessControlTest extends \PHPUnit_Framework_TestCase
 {
 
-  /**
-   * @var Judge
-   */
-  private $judge;
+    /**
+     * @var Judge
+     */
+    private $judge;
 
-  public function setUp()
-  {
-    $user = new TestUser(["member"]);
+    public function setUp()
+    {
+        $user = new TestUser(["member"]);
 
-    $config = [
-        "objects" => [
-            TestBlog::class => [
-                "identifier" => "blog",
-                "roles" => [
-                    "author" => [
-                        "rights" => ["write"],
-                        "related_rights" => [
-                            "comment" => ["write", "remove"]
+        $config = [
+            "objects" => [
+                TestBlog::class => [
+                    "identifier" => "blog",
+                    "roles" => [
+                        "author" => [
+                            "rights" => ["write"],
+                            "related_rights" => [
+                                "comment" => ["write", "remove"]
+                            ]
+                        ],
+                        "subscriber" => [
+                            "rights" => [],
+                            "related_rights" => [
+                                "comment" => ["write"]
+                            ]
                         ]
-                    ],
-                    "subscriber" => [
-                        "rights" => [],
-                        "related_rights" => [
-                            "comment" => ["write"]
+                    ]
+                ],
+                TestComment::class => [
+                    "identifier" => "comment",
+                    "roles" => [
+                        "creator" => [
+                            "rights" => ["edit", "remove"],
+                            "related_rights" => []
                         ]
                     ]
                 ]
             ],
-            TestComment::class => [
-                "identifier" => "comment",
-                "roles" => [
-                    "creator" => [
-                        "rights" => ["edit", "remove"],
-                        "related_rights" => []
+            "global" => [
+                "member" => [
+                    "rights" => ["access", "test"],
+                    "related_rights" => [
+                        "blog" => ["view"]
                     ]
                 ]
             ]
-        ],
-        "global" => [
-            "member" => [
-                "rights" => ["access", "test"],
-                "related_rights" => [
-                  "blog" => ["view"]
-                ]
-            ]
-        ]
-    ];
+        ];
 
-    $this->judge = new Judge($config, $user);
-  }
+        $this->judge = new Judge($config, $user);
+    }
 
-  public function test()
-  {
-    $blog = new TestBlog(["author"], []);
-    $comment = new TestComment([], [$blog]);
+    public function test()
+    {
+        $blog = new TestBlog(["author"], []);
+        $comment = new TestComment([], [$blog]);
 
-    $this->assertTrue($this->judge->hasRight("access")); // positive global right
-    $this->assertTrue($this->judge->hasRight(["access", "test"])); // positive multiple rights
-    $this->assertTrue($this->judge->hasRight("write", $blog)); // positive object right
-    $this->assertTrue($this->judge->hasRight("view", $blog)); // positive object related right
-    $this->assertTrue($this->judge->hasRight("write", $comment)); // positive related object right
-    $this->assertTrue($this->judge->hasRight("remove", $comment)); // positive related object right
-    $this->assertFalse($this->judge->hasRight("destroy")); // negative global right
-    $this->assertFalse($this->judge->hasRight(["access", "destroy"])); // negative multiple rights
-    $this->assertFalse($this->judge->hasRight("destroy", $blog)); // negative object right
-    $this->assertFalse($this->judge->hasRight("destroy", $comment)); // negative related object right
-    $this->assertFalse($this->judge->hasRight("destroy", $comment)); // negative related object right
+        $this->assertTrue($this->judge->hasRight("access")); // positive global right
+        $this->assertTrue($this->judge->hasRight(["access", "test"])); // positive multiple rights
+        $this->assertTrue($this->judge->hasRight("write", $blog)); // positive object right
+        $this->assertTrue($this->judge->hasRight("view", $blog)); // positive object related right
+        $this->assertTrue($this->judge->hasRight("write", $comment)); // positive related object right
+        $this->assertTrue($this->judge->hasRight("remove", $comment)); // positive related object right
+        $this->assertFalse($this->judge->hasRight("destroy")); // negative global right
+        $this->assertFalse($this->judge->hasRight(["access", "destroy"])); // negative multiple rights
+        $this->assertFalse($this->judge->hasRight("destroy", $blog)); // negative object right
+        $this->assertFalse($this->judge->hasRight("destroy", $comment)); // negative related object right
+        $this->assertFalse($this->judge->hasRight("destroy", $comment)); // negative related object right
 
-    $this->assertTrue($this->judge->hasRole("member"));
-    $this->assertTrue($this->judge->hasRole("author", $blog));
-    $this->assertFalse($this->judge->hasRole("admin"));
-    $this->assertFalse($this->judge->hasRole("creator", $comment));
-  }
+        $this->assertTrue($this->judge->hasRole("member"));
+        $this->assertTrue($this->judge->hasRole("author", $blog));
+        $this->assertFalse($this->judge->hasRole("admin"));
+        $this->assertFalse($this->judge->hasRole("creator", $comment));
+    }
 
 }
\ No newline at end of file
diff --git a/tests/TestBlog.php b/tests/TestBlog.php
index 1c0ed01..f0e795b 100644
--- a/tests/TestBlog.php
+++ b/tests/TestBlog.php
@@ -6,23 +6,23 @@
 class TestBlog implements ObjectInterface
 {
 
-  private $object_roles = [];
-  private $related_object = [];
+    private $object_roles = [];
+    private $related_object = [];
 
-  public function __construct(array $object_roles, array $related_object)
-  {
-    $this->object_roles = $object_roles;
-    $this->related_object = $related_object;
-  }
+    public function __construct(array $object_roles, array $related_object)
+    {
+        $this->object_roles = $object_roles;
+        $this->related_object = $related_object;
+    }
 
-  public function getObjectRoles(UserAccessInterface $user)
-  {
-    return $this->object_roles;
-  }
+    public function getObjectRoles(UserAccessInterface $user)
+    {
+        return $this->object_roles;
+    }
 
-  public function getRelatedObjects()
-  {
-    return $this->related_object;
-  }
+    public function getRelatedObjects()
+    {
+        return $this->related_object;
+    }
 
 }
\ No newline at end of file
diff --git a/tests/TestComment.php b/tests/TestComment.php
index d1b061d..eeaf941 100644
--- a/tests/TestComment.php
+++ b/tests/TestComment.php
@@ -6,23 +6,23 @@
 class TestComment implements ObjectInterface
 {
 
-  private $object_roles = [];
-  private $related_object = [];
+    private $object_roles = [];
+    private $related_object = [];
 
-  public function __construct(array $object_roles, array $related_object)
-  {
-    $this->object_roles = $object_roles;
-    $this->related_object = $related_object;
-  }
+    public function __construct(array $object_roles, array $related_object)
+    {
+        $this->object_roles = $object_roles;
+        $this->related_object = $related_object;
+    }
 
-  public function getObjectRoles(UserAccessInterface $user)
-  {
-    return $this->object_roles;
-  }
+    public function getObjectRoles(UserAccessInterface $user)
+    {
+        return $this->object_roles;
+    }
 
-  public function getRelatedObjects()
-  {
-    return $this->related_object;
-  }
+    public function getRelatedObjects()
+    {
+        return $this->related_object;
+    }
 
 }
\ No newline at end of file
diff --git a/tests/TestUser.php b/tests/TestUser.php
index 18b493d..a7c9d1a 100644
--- a/tests/TestUser.php
+++ b/tests/TestUser.php
@@ -6,16 +6,16 @@
 class TestUser implements UserAccessInterface
 {
 
-  private $global_roles = [];
+    private $global_roles = [];
 
-  public function __construct(array $global_roles)
-  {
-    $this->global_roles = $global_roles;
-  }
+    public function __construct(array $global_roles)
+    {
+        $this->global_roles = $global_roles;
+    }
 
-  public function getGlobalRoles()
-  {
-    return $this->global_roles;
-  }
+    public function getGlobalRoles()
+    {
+        return $this->global_roles;
+    }
 
 }
\ No newline at end of file