public function testButtonClicked()
 {
     $form = $this->getStubForm();
     $action = $form->buttonClicked();
     $this->assertNull($action);
     $controller = new FormTest_Controller();
     $form = $controller->Form();
     $request = new HTTPRequest('POST', 'FormTest_Controller/Form', array(), array('Email' => '*****@*****.**', 'SomeRequiredField' => 1, 'action_doSubmit' => 1));
     $form->httpSubmission($request);
     $button = $form->buttonClicked();
     $this->assertInstanceOf('SilverStripe\\Forms\\FormAction', $button);
     $this->assertEquals('doSubmit', $button->actionName());
     /** @skipUpgrade */
     $form = new Form($controller, 'Form', new FieldList(new FormAction('doSubmit', 'Inline action')), new FieldList());
     $form->disableSecurityToken();
     $request = new HTTPRequest('POST', 'FormTest_Controller/Form', array(), array('action_doSubmit' => 1));
     $form->httpSubmission($request);
     $button = $form->buttonClicked();
     $this->assertInstanceOf('SilverStripe\\Forms\\FormAction', $button);
     $this->assertEquals('doSubmit', $button->actionName());
 }