Adds flavor API tests

This patch adds flavor API tests to the Octavia tempest plugin.

Depends-On: https://review.openstack.org/626819
Change-Id: I863ca500d255fe41eef2d7434e540d53b9ead903
diff --git a/octavia_tempest_plugin/common/constants.py b/octavia_tempest_plugin/common/constants.py
index 0dd0156..0122424 100644
--- a/octavia_tempest_plugin/common/constants.py
+++ b/octavia_tempest_plugin/common/constants.py
@@ -79,6 +79,8 @@
 EXPECTED_CODES = 'expected_codes'
 
 FLAVOR_DATA = 'flavor_data'
+ENABLED = 'enabled'
+FLAVOR_PROFILE_ID = 'flavor_profile_id'
 
 # Other constants
 ACTIVE = 'ACTIVE'
@@ -242,3 +244,5 @@
 ]
 
 SHOW_FLAVOR_PROFILE_FIELDS = [ID, NAME, PROVIDER_NAME, FLAVOR_DATA]
+
+SHOW_FLAVOR_FIELDS = [ID, NAME, DESCRIPTION, ENABLED, FLAVOR_PROFILE_ID]
diff --git a/octavia_tempest_plugin/services/load_balancer/v2/flavor_client.py b/octavia_tempest_plugin/services/load_balancer/v2/flavor_client.py
index a9a0cc3..085da9e 100644
--- a/octavia_tempest_plugin/services/load_balancer/v2/flavor_client.py
+++ b/octavia_tempest_plugin/services/load_balancer/v2/flavor_client.py
@@ -13,8 +13,12 @@
 #   under the License.
 #
 
+from oslo_log import log as logging
+from tempest.lib import exceptions
+
 from octavia_tempest_plugin.services.load_balancer.v2 import base_client
 
+LOG = logging.getLogger(__name__)
 Unset = base_client.Unset
 
 
@@ -216,3 +220,44 @@
                   if not.
         """
         return self._delete_obj(obj_id=flavor_id, ignore_errors=ignore_errors)
+
+    def cleanup_a_flavor(self, flavor_id):
+        """Delete a flavor for tempest cleanup.
+
+           We cannot use the cleanup_flavor method as flavors
+           do not have a provisioning_status.
+
+        :param flavor_id: The flavor ID to delete.
+        :raises AssertionError: if the expected_code isn't a valid http success
+                                response code
+        :raises BadRequest: If a 400 response code is received
+        :raises Conflict: If a 409 response code is received
+        :raises Forbidden: If a 403 response code is received
+        :raises Gone: If a 410 response code is received
+        :raises InvalidContentType: If a 415 response code is received
+        :raises InvalidHTTPResponseBody: The response body wasn't valid JSON
+        :raises InvalidHttpSuccessCode: if the read code isn't an expected
+                                        http success code
+        :raises NotImplemented: If a 501 response code is received
+        :raises OverLimit: If a 413 response code is received and over_limit is
+                           not in the response body
+        :raises RateLimitExceeded: If a 413 response code is received and
+                                   over_limit is in the response body
+        :raises ServerFault: If a 500 response code is received
+        :raises Unauthorized: If a 401 response code is received
+        :raises UnexpectedContentType: If the content-type of the response
+                                       isn't an expect type
+        :raises UnexpectedResponseCode: If a response code above 400 is
+                                        received and it doesn't fall into any
+                                        of the handled checks
+        :raises UnprocessableEntity: If a 422 response code is received and
+                                     couldn't be parsed
+        :returns: None if ignore_errors is True, the response status code
+                  if not.
+        """
+        try:
+            self._delete_obj(obj_id=flavor_id)
+        except exceptions.NotFound:
+            # Already gone, cleanup complete
+            LOG.info("Flavor %s is already gone. "
+                     "Cleanup considered complete.", flavor_id)
diff --git a/octavia_tempest_plugin/tests/api/v2/test_flavor.py b/octavia_tempest_plugin/tests/api/v2/test_flavor.py
new file mode 100644
index 0000000..be3ac76
--- /dev/null
+++ b/octavia_tempest_plugin/tests/api/v2/test_flavor.py
@@ -0,0 +1,419 @@
+#    Copyright 2019 Rackspace US Inc.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import copy
+from operator import itemgetter
+from uuid import UUID
+
+from oslo_serialization import jsonutils
+from tempest import config
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+from tempest.lib import exceptions
+
+from octavia_tempest_plugin.common import constants as const
+from octavia_tempest_plugin.tests import test_base
+
+CONF = config.CONF
+
+
+class FlavorAPITest(test_base.LoadBalancerBaseTest):
+    """Test the flavor object API."""
+
+    @classmethod
+    def resource_setup(cls):
+        """Setup resources needed by the tests."""
+        super(FlavorAPITest, cls).resource_setup()
+
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not cls.lb_admin_flavor_profile_client.is_version_supported(
+                cls.api_version, '2.6'):
+            return
+
+        # Create a shared flavor profile
+        flavor_profile_name = data_utils.rand_name(
+            "lb_admin_flavorprofile-setup")
+        flavor_data = {const.LOADBALANCER_TOPOLOGY: const.SINGLE}
+        flavor_data_json = jsonutils.dumps(flavor_data)
+
+        flavor_profile_kwargs = {
+            const.NAME: flavor_profile_name,
+            const.PROVIDER_NAME: CONF.load_balancer.provider,
+            const.FLAVOR_DATA: flavor_data_json
+        }
+
+        cls.flavor_profile = (
+            cls.lb_admin_flavor_profile_client.create_flavor_profile(
+                **flavor_profile_kwargs))
+        cls.addClassResourceCleanup(
+            cls.lb_admin_flavor_profile_client.cleanup_flavor_profile,
+            cls.flavor_profile[const.ID])
+        cls.flavor_profile_id = cls.flavor_profile[const.ID]
+
+    @decorators.idempotent_id('7e8f39ce-53e0-4364-8778-6da9b9a59e5a')
+    def test_flavor_create(self):
+        """Tests flavor create and basic show APIs.
+
+        * Tests that users without the loadbalancer admin role cannot
+          create a flavor.
+        * Create a fully populated flavor.
+        * Validate the response reflects the requested values.
+        """
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not self.lb_admin_flavor_client.is_version_supported(
+                self.api_version, '2.6'):
+            raise self.skipException('Flavors are only available on '
+                                     'Octavia API version 2.6 or newer.')
+        flavor_name = data_utils.rand_name("lb_admin_flavor-create")
+        flavor_description = data_utils.arbitrary_string(size=255)
+
+        flavor_kwargs = {
+            const.NAME: flavor_name,
+            const.DESCRIPTION: flavor_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        # Test that a user without the load balancer admin role cannot
+        # create a flavor
+        if CONF.load_balancer.RBAC_test_type == const.ADVANCED:
+            self.assertRaises(exceptions.Forbidden,
+                              self.os_primary.flavor_client.create_flavor,
+                              **flavor_kwargs)
+
+        # Happy path
+        flavor = self.lb_admin_flavor_client.create_flavor(**flavor_kwargs)
+        self.addCleanup(self.lb_admin_flavor_client.cleanup_a_flavor,
+                        flavor[const.ID])
+
+        UUID(flavor[const.ID])
+        self.assertEqual(flavor_name, flavor[const.NAME])
+        self.assertEqual(flavor_description, flavor[const.DESCRIPTION])
+        self.assertTrue(flavor[const.ENABLED])
+        self.assertEqual(self.flavor_profile_id,
+                         flavor[const.FLAVOR_PROFILE_ID])
+
+    @decorators.idempotent_id('3ef040ee-fe7e-457b-a56f-8b152f7afa3b')
+    def test_flavor_list(self):
+        """Tests flavor list API and field filtering.
+
+        * Create three flavors.
+        * Validates that non-admin accounts cannot list the flavors.
+        * List the flavors using the default sort order.
+        * List the flavors using descending sort order.
+        * List the flavors using ascending sort order.
+        * List the flavors returning one field at a time.
+        * List the flavors returning two fields.
+        * List the flavors filtering to one of the three.
+        * List the flavors filtered, one field, and sorted.
+        """
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not self.lb_admin_flavor_client.is_version_supported(
+                self.api_version, '2.6'):
+            raise self.skipException('Flavors are only available on '
+                                     'Octavia API version 2.6 or newer.')
+
+        # Create flavor 1
+        flavor1_name = data_utils.rand_name("lb_admin_flavor-list-1")
+        flavor1_description = 'A'
+
+        flavor1_kwargs = {
+            const.NAME: flavor1_name,
+            const.DESCRIPTION: flavor1_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        flavor1 = (self.lb_admin_flavor_client.create_flavor(**flavor1_kwargs))
+        self.addCleanup(
+            self.lb_admin_flavor_client.cleanup_a_flavor, flavor1[const.ID])
+
+        # Create flavor 2
+        flavor2_name = data_utils.rand_name("lb_admin_flavor-list-2")
+        flavor2_description = 'B'
+
+        flavor2_kwargs = {
+            const.NAME: flavor2_name,
+            const.DESCRIPTION: flavor2_description,
+            const.ENABLED: False,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        flavor2 = (self.lb_admin_flavor_client.create_flavor(**flavor2_kwargs))
+        self.addCleanup(
+            self.lb_admin_flavor_client.cleanup_a_flavor, flavor2[const.ID])
+
+        # Create flavor 3
+        flavor3_name = data_utils.rand_name("lb_admin_flavor-list-3")
+        flavor3_description = 'C'
+
+        flavor3_kwargs = {
+            const.NAME: flavor3_name,
+            const.DESCRIPTION: flavor3_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        flavor3 = (self.lb_admin_flavor_client.create_flavor(**flavor3_kwargs))
+        self.addCleanup(
+            self.lb_admin_flavor_client.cleanup_a_flavor, flavor3[const.ID])
+
+        # default sort order (by ID) reference list
+        ref_id_list_asc = [flavor1[const.ID], flavor2[const.ID],
+                           flavor3[const.ID]]
+        ref_id_list_dsc = copy.deepcopy(ref_id_list_asc)
+        ref_id_list_asc.sort()
+        ref_id_list_dsc.sort(reverse=True)
+
+        # Test that a user without the load balancer role cannot
+        # list flavors.
+        if CONF.load_balancer.RBAC_test_type == const.ADVANCED:
+            self.assertRaises(
+                exceptions.Forbidden,
+                self.os_primary.flavor_client.list_flavors)
+
+        # Check the default sort order (by ID)
+        flavors = self.mem_flavor_client.list_flavors()
+        # Remove flavors not used in this test
+        flavors = [flav for flav in flavors
+                   if 'lb_admin_flavor-list' in flav[const.NAME]]
+        self.assertEqual(3, len(flavors))
+        self.assertEqual(ref_id_list_asc[0], flavors[0][const.ID])
+        self.assertEqual(ref_id_list_asc[1], flavors[1][const.ID])
+        self.assertEqual(ref_id_list_asc[2], flavors[2][const.ID])
+
+        # Check the descending sort order by name
+        flavors = self.lb_admin_flavor_client.list_flavors(
+            query_params='{sort}={name}:{order}'.format(
+                sort=const.SORT, name=const.NAME, order=const.DESC))
+        # Remove flavors not used in this test
+        flavors = [flav for flav in flavors
+                   if 'lb_admin_flavor-list' in flav[const.NAME]]
+        self.assertEqual(3, len(flavors))
+        self.assertEqual(flavor3_name, flavors[0][const.NAME])
+        self.assertEqual(flavor2_name, flavors[1][const.NAME])
+        self.assertEqual(flavor1_name, flavors[2][const.NAME])
+
+        # Check the ascending sort order by name
+        flavors = self.mem_flavor_client.list_flavors(
+            query_params='{sort}={name}:{order}'.format(
+                sort=const.SORT, name=const.NAME, order=const.ASC))
+        # Remove flavors not used in this test
+        flavors = [flav for flav in flavors
+                   if 'lb_admin_flavor-list' in flav[const.NAME]]
+        self.assertEqual(3, len(flavors))
+        self.assertEqual(flavor1_name, flavors[0][const.NAME])
+        self.assertEqual(flavor2_name, flavors[1][const.NAME])
+        self.assertEqual(flavor3_name, flavors[2][const.NAME])
+
+        ref_flavors = [flavor1, flavor2, flavor3]
+        sorted_flavors = sorted(ref_flavors, key=itemgetter(const.ID))
+        sorted_enabled_flavors = [flav for flav in sorted_flavors
+                                  if flav[const.ENABLED]]
+
+        # Test fields
+        for field in const.SHOW_FLAVOR_FIELDS:
+            flavors = self.mem_flavor_client.list_flavors(
+                query_params='{fields}={field}&{fields}={name}'.format(
+                    fields=const.FIELDS, field=field, name=const.NAME))
+            # Remove flavors not used in this test
+            flavors = [flav for flav in flavors
+                       if 'lb_admin_flavor-list' in flav[const.NAME]]
+            self.assertEqual(3, len(flavors))
+            self.assertEqual(sorted_flavors[0][field], flavors[0][field])
+            self.assertEqual(sorted_flavors[1][field], flavors[1][field])
+            self.assertEqual(sorted_flavors[2][field], flavors[2][field])
+
+        # Test filtering
+        flavor = self.mem_flavor_client.list_flavors(
+            query_params='{name}={flav_name}'.format(
+                name=const.NAME, flav_name=flavor2[const.NAME]))
+        self.assertEqual(1, len(flavor))
+        self.assertEqual(flavor2[const.ID], flavor[0][const.ID])
+
+        # Test combined params
+        flavors = self.mem_flavor_client.list_flavors(
+            query_params='{enabled}={enable}&{fields}={name}&'
+                         '{sort}={ID}:{desc}'.format(
+                             enabled=const.ENABLED,
+                             enable=True,
+                             fields=const.FIELDS, name=const.NAME,
+                             sort=const.SORT, ID=const.ID,
+                             desc=const.DESC))
+        # Remove flavors not used in this test
+        flavors = [flav for flav in flavors
+                   if 'lb_admin_flavor-list' in flav[const.NAME]]
+        self.assertEqual(2, len(flavors))
+        self.assertEqual(1, len(flavors[0]))
+        self.assertEqual(sorted_enabled_flavors[1][const.NAME],
+                         flavors[0][const.NAME])
+        self.assertEqual(sorted_enabled_flavors[0][const.NAME],
+                         flavors[1][const.NAME])
+
+    @decorators.idempotent_id('7492a862-4011-4924-8e81-70763f479cf8')
+    def test_flavor_show(self):
+        """Tests flavor show API.
+
+        * Create a fully populated flavor.
+        * Validates that non-lb-admin accounts cannot see the flavor.
+        * Show flavor details.
+        * Validate the show reflects the requested values.
+        """
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not self.lb_admin_flavor_client.is_version_supported(
+                self.api_version, '2.6'):
+            raise self.skipException('Flavors are only available on '
+                                     'Octavia API version 2.6 or newer.')
+        flavor_name = data_utils.rand_name("lb_admin_flavor-show")
+        flavor_description = data_utils.arbitrary_string(size=255)
+
+        flavor_kwargs = {
+            const.NAME: flavor_name,
+            const.DESCRIPTION: flavor_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        # Happy path
+        flavor = self.lb_admin_flavor_client.create_flavor(**flavor_kwargs)
+        self.addCleanup(self.lb_admin_flavor_client.cleanup_a_flavor,
+                        flavor[const.ID])
+
+        # Test that a user without the load balancer role cannot
+        # show flavor details.
+        if CONF.load_balancer.RBAC_test_type == const.ADVANCED:
+            self.assertRaises(
+                exceptions.Forbidden,
+                self.os_primary.flavor_client.show_flavor,
+                flavor[const.ID])
+
+        result = self.mem_flavor_client.show_flavor(flavor[const.ID])
+
+        self.assertEqual(flavor[const.ID], result[const.ID])
+        self.assertEqual(flavor_name, result[const.NAME])
+        self.assertEqual(flavor_description, result[const.DESCRIPTION])
+        self.assertTrue(result[const.ENABLED])
+        self.assertEqual(self.flavor_profile_id,
+                         result[const.FLAVOR_PROFILE_ID])
+
+    @decorators.idempotent_id('3d9e2820-a68e-4db9-bf94-53cbcff2dc15')
+    def test_flavor_update(self):
+        """Tests flavor update API.
+
+        * Create a fully populated flavor.
+        * Show flavor details.
+        * Validate the show reflects the initial values.
+        * Validates that non-admin accounts cannot update the flavor.
+        * Update the flavor details.
+        * Show flavor details.
+        * Validate the show reflects the updated values.
+        """
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not self.lb_admin_flavor_client.is_version_supported(
+                self.api_version, '2.6'):
+            raise self.skipException('Flavors are only available on '
+                                     'Octavia API version 2.6 or newer.')
+        flavor_name = data_utils.rand_name("lb_admin_flavor-update")
+        flavor_description = data_utils.arbitrary_string(size=255)
+
+        flavor_kwargs = {
+            const.NAME: flavor_name,
+            const.DESCRIPTION: flavor_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        # Happy path
+        flavor = self.lb_admin_flavor_client.create_flavor(**flavor_kwargs)
+        self.addCleanup(self.lb_admin_flavor_client.cleanup_a_flavor,
+                        flavor[const.ID])
+
+        flavor_name2 = data_utils.rand_name("lb_admin_flavor-update-2")
+        flavor_description2 = data_utils.arbitrary_string(size=255)
+        flavor_updated_kwargs = {
+            const.NAME: flavor_name2,
+            const.DESCRIPTION: flavor_description2,
+            const.ENABLED: False}
+
+        # Test that a user without the load balancer role cannot
+        # show flavor details.
+        if CONF.load_balancer.RBAC_test_type == const.ADVANCED:
+            self.assertRaises(
+                exceptions.Forbidden,
+                self.os_primary.flavor_client.update_flavor,
+                flavor[const.ID], **flavor_updated_kwargs)
+
+        updated_flavor = self.lb_admin_flavor_client.update_flavor(
+            flavor[const.ID], **flavor_updated_kwargs)
+
+        self.assertEqual(flavor[const.ID], updated_flavor[const.ID])
+        self.assertEqual(flavor_name2, updated_flavor[const.NAME])
+        self.assertEqual(flavor_description2,
+                         updated_flavor[const.DESCRIPTION])
+        self.assertEqual(flavor[const.FLAVOR_PROFILE_ID],
+                         updated_flavor[const.FLAVOR_PROFILE_ID])
+        self.assertFalse(updated_flavor[const.ENABLED])
+
+        result = self.mem_flavor_client.show_flavor(flavor[const.ID])
+
+        self.assertEqual(flavor[const.ID], result[const.ID])
+        self.assertEqual(flavor_name2, result[const.NAME])
+        self.assertEqual(flavor_description2,
+                         result[const.DESCRIPTION])
+        self.assertEqual(flavor[const.FLAVOR_PROFILE_ID],
+                         result[const.FLAVOR_PROFILE_ID])
+        self.assertFalse(result[const.ENABLED])
+
+    @decorators.idempotent_id('dfe9173a-26f3-4bba-9e69-d2b817ff2b86')
+    def test_flavor_delete(self):
+        """Tests flavor create and delete APIs.
+
+        * Creates a flavor.
+        * Validates that other accounts cannot delete the flavor.
+        * Deletes the flavor.
+        * Validates the flavor no longer exists.
+        """
+        # We have to do this here as the api_version and clients are not
+        # setup in time to use a decorator or the skip_checks mixin
+        if not self.lb_admin_flavor_client.is_version_supported(
+                self.api_version, '2.6'):
+            raise self.skipException('Flavors are only available on '
+                                     'Octavia API version 2.6 or newer.')
+        flavor_name = data_utils.rand_name("lb_admin_flavor-delete")
+        flavor_description = data_utils.arbitrary_string(size=255)
+
+        flavor_kwargs = {
+            const.NAME: flavor_name,
+            const.DESCRIPTION: flavor_description,
+            const.ENABLED: True,
+            const.FLAVOR_PROFILE_ID: self.flavor_profile_id}
+
+        # Happy path
+        flavor = self.lb_admin_flavor_client.create_flavor(**flavor_kwargs)
+        self.addCleanup(self.lb_admin_flavor_client.cleanup_a_flavor,
+                        flavor[const.ID])
+
+        # Test that a user without the load balancer admin role cannot
+        # delete a flavor.
+        if CONF.load_balancer.RBAC_test_type == const.ADVANCED:
+            self.assertRaises(
+                exceptions.Forbidden,
+                self.os_primary.flavor_client.delete_flavor,
+                flavor[const.ID])
+
+        # Happy path
+        self.lb_admin_flavor_client.delete_flavor(flavor[const.ID])
+
+        self.assertRaises(exceptions.NotFound,
+                          self.lb_admin_flavor_client.show_flavor,
+                          flavor[const.ID])
diff --git a/octavia_tempest_plugin/tests/test_base.py b/octavia_tempest_plugin/tests/test_base.py
index 092fdcc..4ba5cae 100644
--- a/octavia_tempest_plugin/tests/test_base.py
+++ b/octavia_tempest_plugin/tests/test_base.py
@@ -124,6 +124,8 @@
         cls.mem_amphora_client = cls.os_roles_lb_member.amphora_client
         cls.lb_admin_flavor_profile_client = (
             cls.os_roles_lb_admin.flavor_profile_client)
+        cls.lb_admin_flavor_client = cls.os_roles_lb_admin.flavor_client
+        cls.mem_flavor_client = cls.os_roles_lb_member.flavor_client
 
     @classmethod
     def resource_setup(cls):