'Volumes are equal if they have the same name, node_id and pool.'

def test_equality(self):

    service = object()
    v1 = Volume(node_id=u'123', name=MY_VOLUME, service=service, size=self.size)
    v2 = Volume(node_id=u'123', name=MY_VOLUME, service=service, size=self.size)
    assert_equal_comparison(self, v1, v2)
