function testModelCheckRules()
{
$model = new A_Model();
$datasource = new A_Collection();
$datasource->set('foo', 'barBAR');
$datasource->set('bar', 'baz');
$rule = new A_Rule_Regexp('/^[a-z]*$/', '', 'not all lowercase letters. ');
// add rule to check both fields
$model->addRule($rule, array('foo', 'bar'));
# $model->excludeRules(array('foo', 'bar'));
$this->assertFalse($model->isValid($datasource));
// only check bar
$model->excludeRules(array('foo'));
$this->assertTrue($model->isValid($datasource));
// only check foo
$model->excludeRules(array());
$model->includeRules(array('foo'));
$this->assertFalse($model->isValid($datasource));
#dump($model, 'Model: ', 1);
#echo '<pre>' . print_r($model->getErrorMsg(), 1) . '</pre>';
#echo '<pre>' . print_r($model->isValid($datasource), 1) . '</pre>';
}
