from mock import ( Mock, MagicMock, patch ) import neutron_contexts import sys from contextlib import contextmanager from test_utils import ( CharmTestCase ) TO_PATCH = [ 'apt_install', 'config', 'eligible_leader', 'get_os_codename_install_source', 'unit_get', 'config_flags_parser' ] @contextmanager def patch_open(): '''Patch open() to allow mocking both open() itself and the file that is yielded. Yields the mock for "open" and "file", respectively.''' mock_open = MagicMock(spec=open) mock_file = MagicMock(spec=file) @contextmanager def stub_open(*args, **kwargs): mock_open(*args, **kwargs) yield mock_file with patch('__builtin__.open', stub_open): yield mock_open, mock_file class DummyNeutronAPIContext(): def __init__(self, return_value): self.return_value = return_value def __call__(self): return self.return_value class TestL3AgentContext(CharmTestCase): def setUp(self): super(TestL3AgentContext, self).setUp(neutron_contexts, TO_PATCH) self.config.side_effect = self.test_config.get @patch('neutron_contexts.NeutronAPIContext') def test_no_ext_netid(self, _NeutronAPIContext): _NeutronAPIContext.return_value = \ DummyNeutronAPIContext(return_value={'enable_dvr': False}) self.test_config.set('run-internal-router', 'none') self.test_config.set('external-network-id', '') self.eligible_leader.return_value = False self.assertEquals(neutron_contexts.L3AgentContext()(), {'agent_mode': 'legacy', 'handle_internal_only_router': False, 'plugin': 'ovs'}) @patch('neutron_contexts.NeutronAPIContext') def test_hior_leader(self, _NeutronAPIContext): _NeutronAPIContext.return_value = \ DummyNeutronAPIContext(return_value={'enable_dvr': False}) self.test_config.set('run-internal-router', 'leader') self.test_config.set('external-network-id', 'netid') self.eligible_leader.return_value = True self.assertEquals(neutron_contexts.L3AgentContext()(), {'agent_mode': 'legacy', 'handle_internal_only_router': True, 'ext_net_id': 'netid', 'plugin': 'ovs'}) @patch('neutron_contexts.NeutronAPIContext') def test_hior_all(self, _NeutronAPIContext): _NeutronAPIContext.return_value = \ DummyNeutronAPIContext(return_value={'enable_dvr': False}) self.test_config.set('run-internal-router', 'all') self.test_config.set('external-network-id', 'netid') self.eligible_leader.return_value = True self.assertEquals(neutron_contexts.L3AgentContext()(), {'agent_mode': 'legacy', 'handle_internal_only_router': True, 'ext_net_id': 'netid', 'plugin': 'ovs'}) @patch('neutron_contexts.NeutronAPIContext') def test_dvr(self, _NeutronAPIContext): _NeutronAPIContext.return_value = \ DummyNeutronAPIContext(return_value={'enable_dvr': True}) self.assertEquals(neutron_contexts.L3AgentContext()()['agent_mode'], 'dvr_snat') class TestNeutronGatewayContext(CharmTestCase): def setUp(self): super(TestNeutronGatewayContext, self).setUp(neutron_contexts, TO_PATCH) self.config.side_effect = self.test_config.get self.maxDiff = None @patch('charmhelpers.contrib.openstack.context.relation_get') @patch('charmhelpers.contrib.openstack.context.related_units') @patch('charmhelpers.contrib.openstack.context.relation_ids') @patch.object(neutron_contexts, 'get_shared_secret') @patch.object(neutron_contexts, 'get_host_ip') def test_all(self, _host_ip, _secret, _rids, _runits, _rget): rdata = {'l2-population': 'True', 'enable-dvr': 'True', 'overlay-network-type': 'gre', 'enable-l3ha': 'True', 'network-device-mtu': 9000} self.test_config.set('plugin', 'ovs') self.test_config.set('debug', False) self.test_config.set('verbose', True) self.test_config.set('instance-mtu', 1420) self.test_config.set('dnsmasq-flags', 'dhcp-userclass=set:ipxe,iPXE,' 'dhcp-match=set:ipxe,175') self.test_config.set('vlan-ranges', 'physnet1:1000:2000 physnet2:2001:3000') self.test_config.set('flat-network-providers', 'physnet3 physnet4') # Provided by neutron-api relation _rids.return_value = ['neutron-plugin-api:0'] _runits.return_value = ['neutron-api/0'] _rget.side_effect = lambda *args, **kwargs: rdata self.get_os_codename_install_source.return_value = 'folsom' self.config_flags_parser.return_value = { 'dhcp-userclass': 'set:ipxe,iPXE', 'dhcp-match': 'set:ipxe,175' } _host_ip.return_value = '10.5.0.1' _secret.return_value = 'testsecret' ctxt = neutron_contexts.NeutronGatewayContext()() self.assertEquals(ctxt, { 'shared_secret': 'testsecret', 'enable_dvr': True, 'enable_l3ha': True, 'local_ip': '10.5.0.1', 'instance_mtu': 1420, 'core_plugin': "quantum.plugins.openvswitch.ovs_quantum_plugin." "OVSQuantumPluginV2", 'plugin': 'ovs', 'debug': False, 'verbose': True, 'l2_population': True, 'overlay_network_type': 'gre', 'bridge_mappings': 'physnet1:br-data', 'network_providers': 'physnet3,physnet4', 'vlan_ranges': 'physnet1:1000:2000,physnet2:2001:3000', 'network_device_mtu': 9000, 'veth_mtu': 9000, 'dnsmasq_flags': { 'dhcp-userclass': 'set:ipxe,iPXE', 'dhcp-match': 'set:ipxe,175' } }) class TestSharedSecret(CharmTestCase): def setUp(self): super(TestSharedSecret, self).setUp(neutron_contexts, TO_PATCH) self.config.side_effect = self.test_config.get @patch('os.path') @patch('uuid.uuid4') def test_secret_created_stored(self, _uuid4, _path): _path.exists.return_value = False _uuid4.return_value = 'secret_thing' with patch_open() as (_open, _file): self.assertEquals(neutron_contexts.get_shared_secret(), 'secret_thing') _open.assert_called_with( neutron_contexts.SHARED_SECRET.format('quantum'), 'w') _file.write.assert_called_with('secret_thing') @patch('os.path') def test_secret_retrieved(self, _path): _path.exists.return_value = True with patch_open() as (_open, _file): _file.read.return_value = 'secret_thing\n' self.assertEquals(neutron_contexts.get_shared_secret(), 'secret_thing') _open.assert_called_with( neutron_contexts.SHARED_SECRET.format('quantum'), 'r') class TestHostIP(CharmTestCase): def setUp(self): super(TestHostIP, self).setUp(neutron_contexts, TO_PATCH) self.config.side_effect = self.test_config.get # Save and inject self.mods = {'dns': None, 'dns.resolver': None} for mod in self.mods: if mod not in sys.modules: sys.modules[mod] = Mock() else: del self.mods[mod] def tearDown(self): super(TestHostIP, self).tearDown() # Cleanup for mod in self.mods.keys(): del sys.modules[mod] def test_get_host_ip_already_ip(self): self.assertEquals(neutron_contexts.get_host_ip('10.5.0.1'), '10.5.0.1') def test_get_host_ip_noarg(self): self.unit_get.return_value = "10.5.0.1" self.assertEquals(neutron_contexts.get_host_ip(), '10.5.0.1') @patch('dns.resolver.query') def test_get_host_ip_hostname_unresolvable(self, _query): class NXDOMAIN(Exception): pass _query.side_effect = NXDOMAIN() self.assertRaises(NXDOMAIN, neutron_contexts.get_host_ip, 'missing.example.com') @patch('dns.resolver.query') def test_get_host_ip_hostname_resolvable(self, _query): data = MagicMock() data.address = '10.5.0.1' _query.return_value = [data] self.assertEquals(neutron_contexts.get_host_ip('myhost.example.com'), '10.5.0.1') _query.assert_called_with('myhost.example.com', 'A') class TestMisc(CharmTestCase): def setUp(self): super(TestMisc, self).setUp(neutron_contexts, TO_PATCH) def test_lt_havana(self): self.get_os_codename_install_source.return_value = 'folsom' self.assertEquals(neutron_contexts.networking_name(), 'quantum') def test_ge_havana(self): self.get_os_codename_install_source.return_value = 'havana' self.assertEquals(neutron_contexts.networking_name(), 'neutron') def test_remap_plugin(self): self.get_os_codename_install_source.return_value = 'havana' self.assertEquals(neutron_contexts.remap_plugin('nvp'), 'nvp') self.assertEquals(neutron_contexts.remap_plugin('nsx'), 'nvp') def test_remap_plugin_icehouse(self): self.get_os_codename_install_source.return_value = 'icehouse' self.assertEquals(neutron_contexts.remap_plugin('nvp'), 'nsx') self.assertEquals(neutron_contexts.remap_plugin('nsx'), 'nsx') def test_remap_plugin_noop(self): self.get_os_codename_install_source.return_value = 'icehouse' self.assertEquals(neutron_contexts.remap_plugin('ovs'), 'ovs') def test_core_plugin(self): self.get_os_codename_install_source.return_value = 'havana' self.config.return_value = 'ovs' self.assertEquals(neutron_contexts.core_plugin(), neutron_contexts.NEUTRON_OVS_PLUGIN) def test_core_plugin_ml2(self): self.get_os_codename_install_source.return_value = 'icehouse' self.config.return_value = 'ovs' self.assertEquals(neutron_contexts.core_plugin(), neutron_contexts.NEUTRON_ML2_PLUGIN)