How to use _change_capabilities_storage_protocol method in tempest

Best Python code snippet using tempest_python

test_backends_capabilities.py

Source:test_backends_capabilities.py

...30        """Test getting backend capabilities"""31        # Check response schema32        self.admin_capabilities_client.show_backend_capabilities(self.hosts[0])33    @staticmethod34    def _change_capabilities_storage_protocol(capabilities):35        """Convert storage_protocol to its canonical version"""36        # List of storage protocols variants defined in cinder.common.constants37        # The canonical name for storage protocol comes first in the list38        VARIANTS = [['iSCSI', 'iscsi'], ['FC', 'fibre_channel', 'fc'],39                    ['NFS', 'nfs'], ['NVMe-oF', 'NVMeOF', 'nvmeof']]40        capabilities = sorted(list(capabilities))41        # Cinder Bug #1966103: Some drivers were reporting different strings42        # to represent the same storage protocol. For backward compatibility,43        # the scheduler can handle the variants, but to standardize this for44        # operators (who may need to refer to the protocol in volume-type45        # extra-specs), the get-pools and get-capabilities response was changed46        # to only report the canonical name for a storage protocol, but these47        # 2 REST API call swere not changed simultaneously, so we may or may48        # not get canonical names, so just convert canonical names.49        for item in range(len(capabilities)):50            for variants in VARIANTS:51                if capabilities[item][2] in variants:52                    capabilities[item] = (capabilities[item][0],53                                          capabilities[item][1],54                                          variants[0])55        return capabilities56    @decorators.idempotent_id('a9035743-d46a-47c5-9cb7-3c80ea16dea0')57    def test_compare_volume_stats_values(self):58        """Test comparing volume stats values59        Compare volume stats between show_backend_capabilities and show_pools.60        """61        VOLUME_STATS = ('vendor_name',62                        'volume_backend_name',63                        'storage_protocol')64        # Get list backend capabilities using show_pools65        cinder_pools = [66            pool['capabilities'] for pool in67            self.admin_scheduler_stats_client.list_pools(detail=True)['pools']68        ]69        # Get list backends capabilities using show_backend_capabilities70        capabilities = [71            self.admin_capabilities_client.show_backend_capabilities(72                host=host) for host in self.hosts73        ]74        # Returns a tuple of VOLUME_STATS values75        expected_list = self._change_capabilities_storage_protocol(76            map(operator.itemgetter(*VOLUME_STATS), cinder_pools))77        observed_list = self._change_capabilities_storage_protocol(78            map(operator.itemgetter(*VOLUME_STATS), capabilities))...

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