public function testStringContainsCaseInsensitive()
 {
     $this->_validator->setCaseSensitive(false);
     $this->assertFalse($this->_validator->isValid('Test2ing if it works'));
     $messages = $this->_validator->getMessages();
     $this->assertArrayHasKey(App_Validate_StringNotContains::CONTAINS, $messages);
 }