public function testCanFormatAnAccessRuleModelWithGroup()
{
$id = 1;
$users = ['user1', 'user2'];
$group = 'group';
$model = $this->getMock('Imbo\\Model\\AccessRule');
$model->expects($this->once())->method('getId')->will($this->returnValue($id));
$model->expects($this->once())->method('getUsers')->will($this->returnValue($users));
$model->expects($this->once())->method('getGroup')->will($this->returnValue($group));
$model->expects($this->once())->method('getResources')->will($this->returnValue([]));
$this->assertRegExp('#<imbo>\\s*<rule id="1"><group>group</group><users><user>user1</user><user>user2</user></users></rule>\\s*</imbo>$#', $this->formatter->format($model));
}