Cdbtestcase Active Record Save() Fails


I want to test the creation of a group in my application. So I copied the AR-Test of the tutorial and modified it to my needs. I added a fixture and if I call …::model()->findAll() I get the groups of the fixture.

In my test I want to create a new group und verify, that the group was inserted. $this->assertTrue($group->save()) passes but var_dump($group->id) is NULL.

Here my test:

public function testCreateGroup(){

	// Insert new group

	$group= RightGroup::model();

	$group->title = 'Create Test';


	// Verify created and updated date

	$group = RightGroup::model()->findByPk($group->id);

	$this->assertTrue($group instanceof RightGroup);


Where is my bug?