KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use _check_if_allocation_is_possible method in tempest

Best Python code snippet using tempest_python

test_minbw_allocation_placement.py

Source:test_minbw_allocation_placement.py

...100                'provider:physical_network': physnet_name,101                'provider:segmentation_id': base_segm102            })103        self._create_qos_policies()104    def _check_if_allocation_is_possible(self):105        alloc_candidates = self.placement_client.list_allocation_candidates(106            resources1='%s:%s' % (self.INGRESS_RESOURCE_CLASS,107                                  self.SMALLEST_POSSIBLE_BW))108        if len(alloc_candidates['provider_summaries']) == 0:109            self.fail('No allocation candidates are available for %s:%s' %110                      (self.INGRESS_RESOURCE_CLASS, self.SMALLEST_POSSIBLE_BW))111        # Just to be sure check with impossible high (placement max_int),112        # allocation113        alloc_candidates = self.placement_client.list_allocation_candidates(114            resources1='%s:%s' % (self.INGRESS_RESOURCE_CLASS,115                                  self.PLACEMENT_MAX_INT))116        if len(alloc_candidates['provider_summaries']) != 0:117            self.fail('For %s:%s there should be no available candidate!' %118                      (self.INGRESS_RESOURCE_CLASS, self.PLACEMENT_MAX_INT))119    @decorators.idempotent_id('78625d92-212c-400e-8695-dd51706858b8')120    @decorators.attr(type='slow')121    @utils.services('compute', 'network')122    def test_qos_min_bw_allocation_basic(self):123        """"Basic scenario with QoS min bw allocation in placement.124        Steps:125        * Create prerequisites:126        ** VLAN type provider network with subnet.127        ** valid QoS policy with minimum bandwidth rule with min_kbps=1128        (This is a simplification to skip the checks in placement for129        detecting the resource provider tree and inventories, as if130        bandwidth resource is available 1 kbs will be available).131        ** invalid QoS policy with minimum bandwidth rule with132        min_kbs=max integer from placement (this is a simplification again133        to avoid detection of RP tress and inventories, as placement will134        reject such big allocation).135        * Create port with valid QoS policy, and boot VM with that, it should136        pass.137        * Create port with invalid QoS policy, and try to boot VM with that,138        it should fail.139        """140        self._check_if_allocation_is_possible()141        self._create_network_and_qos_policies()142        valid_port = self.create_port(143            self.prov_network['id'], qos_policy_id=self.qos_policy_valid['id'])144        server1 = self.create_server(145            networks=[{'port': valid_port['id']}])146        allocations = self.placement_client.list_allocations(server1['id'])147        self.assertGreater(len(allocations['allocations']), 0)148        bw_resource_in_alloc = False149        for rp, resources in allocations['allocations'].items():150            if self.INGRESS_RESOURCE_CLASS in resources['resources']:151                bw_resource_in_alloc = True152        self.assertTrue(bw_resource_in_alloc)153        # boot another vm with max int bandwidth154        not_valid_port = self.create_port(...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.