function testArgumentValidatePhp() {
$string = $this
->randomName();
$view = views_get_view('test_view_argument_validate_php');
$view
->setDisplay();
$view->displayHandlers
->get('default')->options['arguments']['null']['validate_options']['code'] = 'return $argument == \'' . $string . '\';';
$view
->initHandlers();
$this
->assertTrue($view->argument['null']
->validateArgument($string));
// Reset safed argument validation.
$view->argument['null']->argument_validated = NULL;
$this
->assertFalse($view->argument['null']
->validateArgument($this
->randomName()));
}