def test_ordering_subnets_ip_version(self):
"""Order by ip_version primarily.
Order by ip_version primarily, even when IPv4 is less full than IPv6
subnet.
"""
cidr4 = "0.0.0.0/30" # 2 bits
last4 = netaddr.IPNetwork(cidr4).last
cidr6 = "fffc::/127" # 1 bits
last6 = netaddr.IPNetwork(cidr6).last
with self._fixtures([
self._create_models(cidr4, 4, last4),
self._create_models(cidr6, 6, last6)
]) as net:
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(subnets[0][0].ip_version, 4)
self.assertEqual(subnets[1][0].ip_version, 6)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(subnets[0][0].ip_version, 4)
self.assertEqual(subnets[1][0].ip_version, 6)
def test_ordering_subnets_find_allocc_when_counts_unequal_size_equal(self):
models = []
cidrs = ["0.0.0.0/31", "1.1.1.0/31", "2.2.2.0/31"]
for cidr in cidrs:
last = netaddr.IPNetwork(cidr).last
models.append(self._create_models(cidr, 4, last))
with self._fixtures(models) as net:
self._create_ip_address("2.2.2.1", 4, "2.2.2.0/31", net["id"])
self._create_ip_address("2.2.2.2", 4, "2.2.2.0/31", net["id"])
self._create_ip_address("1.1.1.1", 4, "1.1.1.0/31", net["id"])
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
self.assertEqual(subnets[0][0].cidr, "2.2.2.0/31")
self.assertEqual(subnets[0][1], 2)
self.assertEqual(subnets[1][0].cidr, "1.1.1.0/31")
self.assertEqual(subnets[1][1], 1)
self.assertEqual(subnets[2][0].cidr, "0.0.0.0/31")
self.assertEqual(subnets[2][1], 0)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
self.assertEqual(subnets[0][0].cidr, "0.0.0.0/31")
self.assertEqual(subnets[0][1], 0)
self.assertEqual(subnets[1][0].cidr, "1.1.1.0/31")
self.assertEqual(subnets[1][1], 1)
self.assertEqual(subnets[2][0].cidr, "2.2.2.0/31")
self.assertEqual(subnets[2][1], 2)
def test_ordering_subnets_ip_version(self):
"""Order by ip_version primarily.
Order by ip_version primarily, even when IPv4 is less full than IPv6
subnet.
"""
cidr4 = "0.0.0.0/30" # 2 bits
last4 = netaddr.IPNetwork(cidr4).last
cidr6 = "fffc::/127" # 1 bits
last6 = netaddr.IPNetwork(cidr6).last
with self._fixtures([
self._create_models(cidr4, 4, last4),
self._create_models(cidr6, 6, last6)
]) as net:
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(subnets[0][0].ip_version, 4)
self.assertEqual(subnets[1][0].ip_version, 6)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(subnets[0][0].ip_version, 4)
self.assertEqual(subnets[1][0].ip_version, 6)
def test_ordering_subnets_find_allocc_when_counts_unequal_size_equal(self):
models = []
cidrs = ["0.0.0.0/31", "1.1.1.0/31", "2.2.2.0/31"]
for cidr in cidrs:
last = netaddr.IPNetwork(cidr).last
models.append(self._create_models(cidr, 4, last))
with self._fixtures(models) as net:
self._create_ip_address("2.2.2.1", 4, "2.2.2.0/31", net["id"])
self._create_ip_address("2.2.2.2", 4, "2.2.2.0/31", net["id"])
self._create_ip_address("1.1.1.1", 4, "1.1.1.0/31", net["id"])
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
self.assertEqual(subnets[0][0].cidr, "2.2.2.0/31")
self.assertEqual(subnets[0][1], 2)
self.assertEqual(subnets[1][0].cidr, "1.1.1.0/31")
self.assertEqual(subnets[1][1], 1)
self.assertEqual(subnets[2][0].cidr, "0.0.0.0/31")
self.assertEqual(subnets[2][1], 0)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
self.assertEqual(subnets[0][0].cidr, "0.0.0.0/31")
self.assertEqual(subnets[0][1], 0)
self.assertEqual(subnets[1][0].cidr, "1.1.1.0/31")
self.assertEqual(subnets[1][1], 1)
self.assertEqual(subnets[2][0].cidr, "2.2.2.0/31")
self.assertEqual(subnets[2][1], 2)
def test_ordering_subnets_find_allocation_counts_when_count_equal(self):
models = []
cidrs = ["0.0.0.0/31", "1.1.1.0/31", "2.2.2.0/31"]
for cidr in cidrs:
last = netaddr.IPNetwork(cidr).last
models.append(self._create_models(cidr, 4, last))
with self._fixtures(models) as net:
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
for subnet in subnets:
self.assertIn(subnet[0]["cidr"], cidrs)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
for subnet in subnets:
self.assertIn(subnet[0]["cidr"], cidrs)
def test_ordering_subnets_find_allocation_counts_when_count_equal(self):
models = []
cidrs = ["0.0.0.0/31", "1.1.1.0/31", "2.2.2.0/31"]
for cidr in cidrs:
last = netaddr.IPNetwork(cidr).last
models.append(self._create_models(cidr, 4, last))
with self._fixtures(models) as net:
subnets = db_api.subnet_find_ordered_by_most_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
for subnet in subnets:
self.assertIn(subnet[0]["cidr"], cidrs)
subnets = db_api.subnet_find_ordered_by_least_full(
self.context, net['id'], segment_id=None,
scope=db_api.ALL).all()
self.assertEqual(len(subnets), 3)
for subnet in subnets:
self.assertIn(subnet[0]["cidr"], cidrs)
