/**
  * @dataProvider hasProvider
  */
 function testHas($extensions, $type, $name, $expected)
 {
     $manager = new ExtensionManager();
     foreach ($extensions as $extension) {
         $manager->addExtension($extension['instance'], $extension['type']);
     }
     $this->assertEquals($expected, $manager->hasExtension($type, $name));
 }