public function testSetMailSubjectTemplateByIndexAndGetMailSubjectTemplateByIndex()
 {
     $getMailSubjectTemplateByIndex = getMethod('MailForm', 'getMailSubjectTemplateByIndex');
     $mailform = new MailForm();
     $mailform->setMailSubjectTemplateByIndex(1, 'subject1');
     $subject = $getMailSubjectTemplateByIndex->invokeArgs($mailform, array(1));
     $this->assertEquals('subject1', $subject);
     $mailform->setMailSubjectTemplateByIndex(1, 'subject2');
     $subject = $getMailSubjectTemplateByIndex->invokeArgs($mailform, array(1));
     $this->assertEquals('subject2', $subject);
     $mailform->setMailSubjectTemplateByIndex(2, 'subject3');
     $subject = $getMailSubjectTemplateByIndex->invokeArgs($mailform, array(2));
     $this->assertEquals('subject3', $subject);
 }