public function testVisit()
{
$visitor = $this->getVisitor();
$generator = $this->getGenerator();
$generator->startDocument(null);
$role = new User\Role(array('id' => 42, 'identifier' => 'some-role'));
$this->addRouteExpectation('ezpublish_rest_loadRole', array('roleId' => $role->id), "/user/roles/{$role->id}");
$this->addRouteExpectation('ezpublish_rest_loadPolicies', array('roleId' => $role->id), "/user/roles/{$role->id}/policies");
$visitor->visit($this->getVisitorMock(), $generator, $role);
$result = $generator->endDocument(null);
$this->assertNotNull($result);
return $result;
}