Added three new test cases for RequestHandlerComponent rel View classes.

tests/TestCase/Controller/Component/RequestHandlerComponentTest.php

@@ -337,7 +337,9 @@ public function testAutoAjaxLayout() {
 		$this->RequestHandler->initialize($event);
 		$this->RequestHandler->startup($event);
 		$this->assertEquals($this->Controller->viewClass, 'Cake\View\AjaxView');
-
+		$view = $this->Controller->createView();
+		$this->assertEquals('ajax', $view->layout);
+
 		$this->_init();
 		$this->Controller->request->params['_ext'] = 'js';
 		$this->RequestHandler->initialize($event);
@@ -347,6 +349,50 @@ public function testAutoAjaxLayout() {
 		unset($_SERVER['HTTP_X_REQUESTED_WITH']);
 	}
 
+/**
+ * test custom JsonView class is loaded and correct.
+ */
+	public function testJsonViewLoaded() {
+		Router::parseExtensions('json', 'xml', 'ajax');
+		$this->Controller->request->params['_ext'] = 'json';
+		$event = new Event('Controller.startup', $this->Controller);
+		$this->RequestHandler->initialize($event);
+		$this->RequestHandler->startup($event);
+		$this->assertEquals('Cake\View\JsonView', $this->Controller->viewClass);
+		$view = $this->Controller->createView();
+		$this->assertEquals('json', $view->layoutPath);
+		$this->assertEquals('json', $view->subDir);
+	}
+
+/**
+ * test custom XmlView class is loaded and correct.
+ */
+	public function testXmlViewLoaded() {
+		Router::parseExtensions('json', 'xml', 'ajax');
+		$this->Controller->request->params['_ext'] = 'xml';
+		$event = new Event('Controller.startup', $this->Controller);
+		$this->RequestHandler->initialize($event);
+		$this->RequestHandler->startup($event);
+		$this->assertEquals('Cake\View\XmlView', $this->Controller->viewClass);
+		$view = $this->Controller->createView();
+		$this->assertEquals('xml', $view->layoutPath);
+		$this->assertEquals('xml', $view->subDir);
+	}
+
+/**
+ * test custom AjaxView class is loaded and correct.
+ */
+	public function testAjaxViewLoaded() {
+		Router::parseExtensions('json', 'xml', 'ajax');
+		$this->Controller->request->params['_ext'] = 'ajax';
+		$event = new Event('Controller.startup', $this->Controller);
+		$this->RequestHandler->initialize($event);
+		$this->RequestHandler->startup($event);
+		$this->assertEquals('Cake\View\AjaxView', $this->Controller->viewClass);
+		$view = $this->Controller->createView();
+		$this->assertEquals('ajax', $view->layout);
+	}
+
 /**
  * testStartupCallback method
  *