/**
* Test if the permission index is being set correctly.
*/
public function test_permission_index()
{
Permission::index();
$index = Permission::getIndex();
// Index there and is the right type?
$this->assertInstanceOf('Birdmin\\Collections\\PermissionCollection', $index);
$this->assertGreaterThan(0, $index->count());
// Basic permission exists?
$this->assertInstanceOf('Birdmin\\Permission', $index->lookup('view', 'Birdmin\\Page'));
// Test the right permission being returned.
$permission = $index->lookup('view', 'Birdmin\\Page');
$this->assertEquals('view', $permission->ability);
$this->assertEquals('Birdmin\\Page', $permission->object);
// Non-existent permission returning null with bogus ability?
$this->assertNull($index->lookup('wrong', 'Birdmin\\Page'));
// Non-existent permission returning null with bogus model?
$this->assertNull($index->lookup('view', 'Wrong'));
}