Don't use anonymous functions

Added some missing doc

classes/Locale.php

@@ -88,6 +88,11 @@ class Locale
         return strtolower($this->region);
     }
 
+    /**
+     * Get country information from locale.
+     *
+     * @return \Rinvex\Country\Country
+     */
     public function getCountry()
     {
         return country($this->getIso3166());

tests/LocaleMiddlewareTest.php

@@ -64,6 +64,15 @@ class LocaleMiddlewareTest extends \PHPUnit_Framework_TestCase
         $this->assertNull($this->middleware->testLocale([]));
     }
 
+    /**
+     * Mock function that does nothing.
+     *
+     * @return void
+     */
+    public function nothing()
+    {
+    }
+
     /**
      * Test the __invoke() function.
      *
@@ -75,8 +84,7 @@ class LocaleMiddlewareTest extends \PHPUnit_Framework_TestCase
         $this->middleware->__invoke(
             $request->withHeader('Accept-Language', 'fr-FR'),
             new Response(),
-            function () {
+            [$this, 'nothing']
-            }
         );
     }
 
@@ -91,8 +99,7 @@ class LocaleMiddlewareTest extends \PHPUnit_Framework_TestCase
         $this->middleware->__invoke(
             $request->withoutHeader('Accept-Language'),
             new Response(),
-            function () {
+            [$this, 'nothing']
-            }
         );
     }