diff --git a/tempest/api/compute/admin/test_aggregates.py b/tempest/api/compute/admin/test_aggregates.py
index f33089c..7c2e604 100644
--- a/tempest/api/compute/admin/test_aggregates.py
+++ b/tempest/api/compute/admin/test_aggregates.py
@@ -221,9 +221,3 @@
                                                wait_until='ACTIVE')
         resp, body = admin_servers_client.get_server(server['id'])
         self.assertEqual(self.host, body[self._host_key])
-
-
-class AggregatesAdminTestXML(AggregatesAdminTestJSON):
-    _host_key = (
-        '{http://docs.openstack.org/compute/ext/extended_status/api/v1.1}host')
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_aggregates_negative.py b/tempest/api/compute/admin/test_aggregates_negative.py
index ef6752b..219d12e 100644
--- a/tempest/api/compute/admin/test_aggregates_negative.py
+++ b/tempest/api/compute/admin/test_aggregates_negative.py
@@ -186,7 +186,3 @@
 
         self.assertRaises(exceptions.NotFound, self.client.remove_host,
                           aggregate['id'], non_exist_host)
-
-
-class AggregatesAdminNegativeTestXML(AggregatesAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_availability_zone.py b/tempest/api/compute/admin/test_availability_zone.py
index 0a040d7..068a710 100644
--- a/tempest/api/compute/admin/test_availability_zone.py
+++ b/tempest/api/compute/admin/test_availability_zone.py
@@ -46,7 +46,3 @@
 
 class AZAdminV2TestJSON(AZAdminV3Test):
     _api_version = 2
-
-
-class AZAdminV2TestXML(AZAdminV2TestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_availability_zone_negative.py b/tempest/api/compute/admin/test_availability_zone_negative.py
index ea157b3..d062b0c 100644
--- a/tempest/api/compute/admin/test_availability_zone_negative.py
+++ b/tempest/api/compute/admin/test_availability_zone_negative.py
@@ -35,7 +35,3 @@
         self.assertRaises(
             exceptions.Unauthorized,
             self.non_adm_client.get_availability_zone_list_detail)
-
-
-class AZAdminNegativeTestXML(AZAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_fixed_ips.py b/tempest/api/compute/admin/test_fixed_ips.py
index e7f269d..d1d13a0 100644
--- a/tempest/api/compute/admin/test_fixed_ips.py
+++ b/tempest/api/compute/admin/test_fixed_ips.py
@@ -58,7 +58,3 @@
         body = {"unreserve": "None"}
         resp, body = self.client.reserve_fixed_ip(self.ip, body)
         self.assertEqual(resp.status, 202)
-
-
-class FixedIPsTestXml(FixedIPsTestJson):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_fixed_ips_negative.py b/tempest/api/compute/admin/test_fixed_ips_negative.py
index 8d6a7fc..e7022db 100644
--- a/tempest/api/compute/admin/test_fixed_ips_negative.py
+++ b/tempest/api/compute/admin/test_fixed_ips_negative.py
@@ -82,7 +82,3 @@
         self.assertRaises(exceptions.BadRequest,
                           self.client.reserve_fixed_ip,
                           self.ip, body)
-
-
-class FixedIPsNegativeTestXml(FixedIPsNegativeTestJson):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors.py b/tempest/api/compute/admin/test_flavors.py
index 3307159..1953040 100644
--- a/tempest/api/compute/admin/test_flavors.py
+++ b/tempest/api/compute/admin/test_flavors.py
@@ -308,7 +308,3 @@
         self.assertEqual(flavor['disk'], self.disk)
         self.assertEqual(flavor['ram'], int(ram))
         self.assertEqual(int(flavor['id']), new_flavor_id)
-
-
-class FlavorsAdminTestXML(FlavorsAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors_access.py b/tempest/api/compute/admin/test_flavors_access.py
index 176a134..19707d0 100644
--- a/tempest/api/compute/admin/test_flavors_access.py
+++ b/tempest/api/compute/admin/test_flavors_access.py
@@ -96,7 +96,3 @@
         resp, flavors = self.flavors_client.list_flavors_with_detail()
         self.assertEqual(resp.status, 200)
         self.assertNotIn(new_flavor['id'], map(lambda x: x['id'], flavors))
-
-
-class FlavorsAdminTestXML(FlavorsAccessTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors_access_negative.py b/tempest/api/compute/admin/test_flavors_access_negative.py
index 9cc2a92..c49652d 100644
--- a/tempest/api/compute/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/admin/test_flavors_access_negative.py
@@ -135,7 +135,3 @@
                           self.client.remove_flavor_access,
                           new_flavor['id'],
                           str(uuid.uuid4()))
-
-
-class FlavorsAdminNegativeTestXML(FlavorsAccessNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs.py b/tempest/api/compute/admin/test_flavors_extra_specs.py
index c05abe2..5157d2e 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs.py
@@ -121,7 +121,3 @@
         self.assertEqual(resp.status, 200)
         self.assertEqual(body['key1'], 'value1')
         self.assertNotIn('key2', body)
-
-
-class FlavorsExtraSpecsTestXML(FlavorsExtraSpecsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
index 30adf73..20860c8 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
@@ -125,7 +125,3 @@
                           "key1",
                           key1="value",
                           key2="value")
-
-
-class FlavorsExtraSpecsNegativeTestXML(FlavorsExtraSpecsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_flavors_negative_xml.py b/tempest/api/compute/admin/test_flavors_negative_xml.py
deleted file mode 100644
index a06b0e6..0000000
--- a/tempest/api/compute/admin/test_flavors_negative_xml.py
+++ /dev/null
@@ -1,268 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-# 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 uuid
-
-from tempest.api.compute.admin import test_flavors_negative
-from tempest.common.utils import data_utils
-from tempest import exceptions
-from tempest import test
-
-
-class FlavorsAdminNegativeTestXML(test_flavors_negative.
-                                  FlavorsAdminNegativeTestJSON):
-
-    """
-    Tests Flavors API Create and Delete that require admin privileges
-    """
-
-    _interface = 'xml'
-
-    def flavor_clean_up(self, flavor_id):
-        resp, body = self.client.delete_flavor(flavor_id)
-        self.assertEqual(resp.status, 202)
-        self.client.wait_for_resource_deletion(flavor_id)
-
-    @test.attr(type=['negative', 'gate'])
-    def test_invalid_is_public_string(self):
-        # the 'is_public' parameter can be 'none/true/false' if it exists
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.list_flavors_with_detail,
-                          {'is_public': 'invalid'})
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_using_invalid_ram(self):
-        # the 'ram' attribute must be positive integer
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          flavor_name, -1, self.vcpus,
-                          self.disk, new_flavor_id)
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_using_invalid_vcpus(self):
-        # the 'vcpu' attribute must be positive integer
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          flavor_name, self.ram, -1,
-                          self.disk, new_flavor_id)
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_name_length_less_than_1(self):
-        # ensure name length >= 1
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          '',
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_name_length_exceeds_255(self):
-        # ensure name do not exceed 255 characters
-        new_flavor_name = 'a' * 256
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_name(self):
-        # the regex of flavor_name is '^[\w\.\- ]*$'
-        invalid_flavor_name = data_utils.rand_name('invalid-!@#$%-')
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          invalid_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_flavor_id(self):
-        # the regex of flavor_id is '^[\w\.\- ]*$', and it cannot contain
-        # leading and/or trailing whitespace
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        invalid_flavor_id = '!@#$%'
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          invalid_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_id_length_exceeds_255(self):
-        # the length of flavor_id should not exceed 255 characters
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        invalid_flavor_id = 'a' * 256
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          invalid_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_root_gb(self):
-        # root_gb attribute should be non-negative ( >= 0) integer
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          -1,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_ephemeral_gb(self):
-        # ephemeral_gb attribute should be non-negative ( >= 0) integer
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=-1,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_swap(self):
-        # swap attribute should be non-negative ( >= 0) integer
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=-1,
-                          rxtx=self.rxtx,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_rxtx_factor(self):
-        # rxtx_factor attribute should be a positive float
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=-1.5,
-                          is_public='False')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_with_invalid_is_public(self):
-        # is_public attribute should be boolean
-        new_flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.create_flavor,
-                          new_flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx,
-                          is_public='Invalid')
-
-    @test.attr(type=['negative', 'gate'])
-    def test_create_flavor_already_exists(self):
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = str(uuid.uuid4())
-
-        resp, flavor = self.client.create_flavor(flavor_name,
-                                                 self.ram, self.vcpus,
-                                                 self.disk,
-                                                 new_flavor_id,
-                                                 ephemeral=self.ephemeral,
-                                                 swap=self.swap,
-                                                 rxtx=self.rxtx)
-        self.assertEqual(200, resp.status)
-        self.addCleanup(self.flavor_clean_up, flavor['id'])
-
-        self.assertRaises(exceptions.Conflict,
-                          self.client.create_flavor,
-                          flavor_name,
-                          self.ram, self.vcpus,
-                          self.disk,
-                          new_flavor_id,
-                          ephemeral=self.ephemeral,
-                          swap=self.swap,
-                          rxtx=self.rxtx)
-
-    @test.attr(type=['negative', 'gate'])
-    def test_delete_nonexistent_flavor(self):
-        nonexistent_flavor_id = str(uuid.uuid4())
-
-        self.assertRaises(exceptions.NotFound,
-                          self.client.delete_flavor,
-                          nonexistent_flavor_id)
diff --git a/tempest/api/compute/admin/test_hosts.py b/tempest/api/compute/admin/test_hosts.py
index bcae492..25965fd 100644
--- a/tempest/api/compute/admin/test_hosts.py
+++ b/tempest/api/compute/admin/test_hosts.py
@@ -84,7 +84,3 @@
             self.assertIsNotNone(host_resource['memory_mb'])
             self.assertIsNotNone(host_resource['project'])
             self.assertEqual(hostname, host_resource['host'])
-
-
-class HostsAdminTestXML(HostsAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_hosts_negative.py b/tempest/api/compute/admin/test_hosts_negative.py
index 4111aba..055219f 100644
--- a/tempest/api/compute/admin/test_hosts_negative.py
+++ b/tempest/api/compute/admin/test_hosts_negative.py
@@ -66,7 +66,6 @@
                           status='enable',
                           maintenance_mode='enable')
 
-    @test.skip_because(bug="1261964", interface="xml")
     @test.attr(type=['negative', 'gate'])
     def test_update_host_with_extra_param(self):
         # only 'status' and 'maintenance_mode' are the valid params.
@@ -167,7 +166,3 @@
         self.assertRaises(exceptions.Unauthorized,
                           self.non_admin_client.reboot_host,
                           hostname)
-
-
-class HostsAdminNegativeTestXML(HostsAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_hypervisor.py b/tempest/api/compute/admin/test_hypervisor.py
index c51d0a5..de3debb 100644
--- a/tempest/api/compute/admin/test_hypervisor.py
+++ b/tempest/api/compute/admin/test_hypervisor.py
@@ -128,7 +128,3 @@
             hypers[0]['hypervisor_hostname'])
         self.assertEqual(200, resp.status)
         self.assertHypervisors(hypers)
-
-
-class HypervisorAdminTestXML(HypervisorAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_hypervisor_negative.py b/tempest/api/compute/admin/test_hypervisor_negative.py
index d3804e8..b1f2351 100644
--- a/tempest/api/compute/admin/test_hypervisor_negative.py
+++ b/tempest/api/compute/admin/test_hypervisor_negative.py
@@ -134,7 +134,3 @@
             exceptions.Unauthorized,
             self.non_adm_client.search_hypervisor,
             hypers[0]['hypervisor_hostname'])
-
-
-class HypervisorAdminNegativeTestXML(HypervisorAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_instance_usage_audit_log.py b/tempest/api/compute/admin/test_instance_usage_audit_log.py
index 91f0b02..f7b5e43 100644
--- a/tempest/api/compute/admin/test_instance_usage_audit_log.py
+++ b/tempest/api/compute/admin/test_instance_usage_audit_log.py
@@ -54,7 +54,3 @@
                           'period_beginning', 'num_hosts_not_run']
         for item in expected_items:
             self.assertIn(item, body)
-
-
-class InstanceUsageAuditLogTestXML(InstanceUsageAuditLogTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py b/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py
index 1af340d..c4905d9 100644
--- a/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py
+++ b/tempest/api/compute/admin/test_instance_usage_audit_log_negative.py
@@ -45,8 +45,3 @@
         self.assertRaises(exceptions.BadRequest,
                           self.adm_client.get_instance_usage_audit_log,
                           "invalid_time")
-
-
-class InstanceUsageAuditLogNegativeTestXML(
-    InstanceUsageAuditLogNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_quotas.py b/tempest/api/compute/admin/test_quotas.py
index 701e1c2..7c666a2 100644
--- a/tempest/api/compute/admin/test_quotas.py
+++ b/tempest/api/compute/admin/test_quotas.py
@@ -152,10 +152,6 @@
         self.assertEqual(ram_default, quota_set_new['ram'])
 
 
-class QuotasAdminTestXML(QuotasAdminTestJSON):
-    _interface = 'xml'
-
-
 class QuotaClassesAdminTestJSON(base.BaseV2ComputeAdminTest):
     """Tests the os-quota-class-sets API to update default quotas.
     """
@@ -202,7 +198,3 @@
         LOG.debug("assert that the response has all of the changed values")
         self.assertThat(update_body.items(),
                         matchers.ContainsAll(body.items()))
-
-
-class QuotaClassesAdminTestXML(QuotaClassesAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_quotas_negative.py b/tempest/api/compute/admin/test_quotas_negative.py
index a9ed7ce..532f195 100644
--- a/tempest/api/compute/admin/test_quotas_negative.py
+++ b/tempest/api/compute/admin/test_quotas_negative.py
@@ -156,7 +156,3 @@
         self.assertRaises((exceptions.OverLimit, exceptions.Unauthorized),
                           self.sg_client.create_security_group_rule,
                           secgroup_id, ip_protocol, 1025, 1025)
-
-
-class QuotasAdminNegativeTestXML(QuotasAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_security_groups.py b/tempest/api/compute/admin/test_security_groups.py
index 40ae236..b4615f2 100644
--- a/tempest/api/compute/admin/test_security_groups.py
+++ b/tempest/api/compute/admin/test_security_groups.py
@@ -90,7 +90,3 @@
             self.assertEqual(sec_group['tenant_id'], client_tenant_id,
                              "Failed to get all security groups for "
                              "non admin user.")
-
-
-class SecurityGroupsTestAdminXML(SecurityGroupsTestAdminJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 47aaee3..e3477f1 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -182,9 +182,3 @@
         resp, server = self.create_test_server(sched_hints=hints,
                                                wait_until='ACTIVE')
         self.assertEqual('202', resp['status'])
-
-
-class ServersAdminTestXML(ServersAdminTestJSON):
-    _host_key = (
-        '{http://docs.openstack.org/compute/ext/extended_status/api/v1.1}host')
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index 9aa489c..2f0af72 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -148,7 +148,3 @@
         self.assertRaises(exceptions.Conflict,
                           self.client.migrate_server,
                           server_id)
-
-
-class ServersAdminNegativeTestXML(ServersAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_services.py b/tempest/api/compute/admin/test_services.py
index 76153e7..e7a39f8 100644
--- a/tempest/api/compute/admin/test_services.py
+++ b/tempest/api/compute/admin/test_services.py
@@ -76,7 +76,3 @@
         self.assertEqual(1, len(services))
         self.assertEqual(host_name, services[0]['host'])
         self.assertEqual(binary_name, services[0]['binary'])
-
-
-class ServicesAdminTestXML(ServicesAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_services_negative.py b/tempest/api/compute/admin/test_services_negative.py
index 5331097..534afc5 100644
--- a/tempest/api/compute/admin/test_services_negative.py
+++ b/tempest/api/compute/admin/test_services_negative.py
@@ -60,7 +60,3 @@
         resp, services = self.client.list_services(params)
         self.assertEqual(200, resp.status)
         self.assertEqual(0, len(services))
-
-
-class ServicesAdminNegativeTestXML(ServicesAdminNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_simple_tenant_usage.py b/tempest/api/compute/admin/test_simple_tenant_usage.py
index 5d596ba..f6553b3 100644
--- a/tempest/api/compute/admin/test_simple_tenant_usage.py
+++ b/tempest/api/compute/admin/test_simple_tenant_usage.py
@@ -73,7 +73,3 @@
 
         self.assertEqual(200, resp.status)
         self.assertEqual(len(tenant_usage), 8)
-
-
-class TenantUsagesTestXML(TenantUsagesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_simple_tenant_usage_negative.py b/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
index 5e2c593..8c31d7c 100644
--- a/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
+++ b/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
@@ -63,7 +63,3 @@
                   'detailed': int(bool(True))}
         self.assertRaises(exceptions.Unauthorized,
                           self.client.list_tenant_usages, params)
-
-
-class TenantUsagesNegativeTestXML(TenantUsagesNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/certificates/test_certificates.py b/tempest/api/compute/certificates/test_certificates.py
index 0f921c5..5c55eec 100644
--- a/tempest/api/compute/certificates/test_certificates.py
+++ b/tempest/api/compute/certificates/test_certificates.py
@@ -39,7 +39,3 @@
 
 class CertificatesV2TestJSON(CertificatesV3Test):
     _api_version = 2
-
-
-class CertificatesV2TestXML(CertificatesV2TestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/flavors/test_flavors.py b/tempest/api/compute/flavors/test_flavors.py
index 7beef23..86eeba3 100644
--- a/tempest/api/compute/flavors/test_flavors.py
+++ b/tempest/api/compute/flavors/test_flavors.py
@@ -132,7 +132,3 @@
     _api_version = 2
     _min_disk = 'minDisk'
     _min_ram = 'minRam'
-
-
-class FlavorsV2TestXML(FlavorsV2TestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/flavors/test_flavors_negative_xml.py b/tempest/api/compute/flavors/test_flavors_negative_xml.py
deleted file mode 100644
index 299b18a..0000000
--- a/tempest/api/compute/flavors/test_flavors_negative_xml.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright 2013 OpenStack Foundation
-# 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 uuid
-
-from tempest.api.compute import base
-from tempest import exceptions
-from tempest import test
-
-
-class FlavorsNegativeTestXML(base.BaseV2ComputeTest):
-    _interface = 'xml'
-
-    @classmethod
-    def resource_setup(cls):
-        super(FlavorsNegativeTestXML, cls).resource_setup()
-        cls.client = cls.flavors_client
-
-    @test.attr(type=['negative', 'gate'])
-    def test_invalid_minRam_filter(self):
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.list_flavors_with_detail,
-                          {'minRam': 'invalid'})
-
-    @test.attr(type=['negative', 'gate'])
-    def test_invalid_minDisk_filter(self):
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.list_flavors_with_detail,
-                          {'minDisk': 'invalid'})
-
-    @test.attr(type=['negative', 'gate'])
-    def test_non_existent_flavor_id(self):
-        # flavor details are not returned for non-existent flavors
-        nonexistent_flavor_id = str(uuid.uuid4())
-        self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
-                          nonexistent_flavor_id)
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions.py b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
index 3bb7d19..db382eb 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
@@ -134,7 +134,3 @@
                            exceptions.Conflict),
                           self.client.disassociate_floating_ip_from_server,
                           self.floating_ip, self.server_id)
-
-
-class FloatingIPsTestXML(FloatingIPsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
index 104d130..2b0f268 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
@@ -93,7 +93,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.client.associate_floating_ip_to_server,
                           '', self.server_id)
-
-
-class FloatingIPsNegativeTestXML(FloatingIPsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/floating_ips/test_list_floating_ips.py b/tempest/api/compute/floating_ips/test_list_floating_ips.py
index cb93177..7af9ca7 100644
--- a/tempest/api/compute/floating_ips/test_list_floating_ips.py
+++ b/tempest/api/compute/floating_ips/test_list_floating_ips.py
@@ -79,7 +79,3 @@
         self.assertEqual(200, resp.status)
         self.assertNotEqual(0, len(floating_ip_pools),
                             "Expected floating IP Pools. Got zero.")
-
-
-class FloatingIPDetailsTestXML(FloatingIPDetailsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
index 08819c2..c343018 100644
--- a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
+++ b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
@@ -43,7 +43,3 @@
             non_exist_id = data_utils.rand_int_id(start=999)
         self.assertRaises(exceptions.NotFound,
                           self.client.get_floating_ip_details, non_exist_id)
-
-
-class FloatingIPDetailsNegativeTestXML(FloatingIPDetailsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_image_metadata.py b/tempest/api/compute/images/test_image_metadata.py
index 1fa591f..5105e2f 100644
--- a/tempest/api/compute/images/test_image_metadata.py
+++ b/tempest/api/compute/images/test_image_metadata.py
@@ -107,7 +107,3 @@
         resp, resp_metadata = self.client.list_image_metadata(self.image_id)
         expected = {'key2': 'value2'}
         self.assertEqual(expected, resp_metadata)
-
-
-class ImagesMetadataTestXML(ImagesMetadataTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_image_metadata_negative.py b/tempest/api/compute/images/test_image_metadata_negative.py
index 7f0bc4e..615b5d0 100644
--- a/tempest/api/compute/images/test_image_metadata_negative.py
+++ b/tempest/api/compute/images/test_image_metadata_negative.py
@@ -72,7 +72,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.client.delete_image_metadata_item,
                           data_utils.rand_uuid(), 'key1')
-
-
-class ImagesMetadataTestXML(ImagesMetadataTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_images.py b/tempest/api/compute/images/test_images.py
index 68f793a..51dae65 100644
--- a/tempest/api/compute/images/test_images.py
+++ b/tempest/api/compute/images/test_images.py
@@ -47,7 +47,3 @@
                                                     wait_until='SAVING')
         resp, body = self.client.delete_image(image['id'])
         self.assertEqual('204', resp['status'])
-
-
-class ImagesTestXML(ImagesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index e406374..9570ca5 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -131,7 +131,3 @@
         # Return an error while trying to delete image with id over limit
         self.assertRaises(exceptions.NotFound, self.client.delete_image,
                           '11a22b9-12a9-5555-cc11-00ab112223fa-3fac')
-
-
-class ImagesNegativeTestXML(ImagesNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_images_oneserver.py b/tempest/api/compute/images/test_images_oneserver.py
index 459d78b..91e0423 100644
--- a/tempest/api/compute/images/test_images_oneserver.py
+++ b/tempest/api/compute/images/test_images_oneserver.py
@@ -99,10 +99,6 @@
 
     @test.attr(type=['gate'])
     def test_create_image_specify_multibyte_character_image_name(self):
-        if self.__class__._interface == "xml":
-            # NOTE(sdague): not entirely accurage, but we'd need a ton of work
-            # in our XML client to make this good
-            raise self.skipException("Not testable in XML")
         # prefix character is:
         # http://www.fileformat.info/info/unicode/char/1F4A9/index.htm
 
@@ -114,7 +110,3 @@
         image_id = data_utils.parse_image_id(resp['location'])
         self.addCleanup(self.client.delete_image, image_id)
         self.assertEqual('202', resp['status'])
-
-
-class ImagesOneServerTestXML(ImagesOneServerTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_images_oneserver_negative.py b/tempest/api/compute/images/test_images_oneserver_negative.py
index dc3d6bc..ae6e712 100644
--- a/tempest/api/compute/images/test_images_oneserver_negative.py
+++ b/tempest/api/compute/images/test_images_oneserver_negative.py
@@ -131,7 +131,3 @@
         self.image_ids.remove(image_id)
 
         self.assertRaises(exceptions.NotFound, self.client.get_image, image_id)
-
-
-class ImagesOneServerNegativeTestXML(ImagesOneServerNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_list_image_filters.py b/tempest/api/compute/images/test_list_image_filters.py
index 30a99dd..ceab4f9 100644
--- a/tempest/api/compute/images/test_list_image_filters.py
+++ b/tempest/api/compute/images/test_list_image_filters.py
@@ -263,7 +263,3 @@
         params = {'changes-since': self.image1['created']}
         resp, images = self.client.list_images_with_detail(params)
         self.assertTrue(any([i for i in images if i['id'] == self.image1_id]))
-
-
-class ListImageFiltersTestXML(ListImageFiltersTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_list_image_filters_negative.py b/tempest/api/compute/images/test_list_image_filters_negative.py
index 53a21a0..a8f2ae7 100644
--- a/tempest/api/compute/images/test_list_image_filters_negative.py
+++ b/tempest/api/compute/images/test_list_image_filters_negative.py
@@ -37,7 +37,3 @@
         nonexistent_image = data_utils.rand_uuid()
         self.assertRaises(exceptions.NotFound, self.client.get_image,
                           nonexistent_image)
-
-
-class ListImageFiltersNegativeTestXML(ListImageFiltersNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/images/test_list_images.py b/tempest/api/compute/images/test_list_images.py
index eceac82..22d64e9 100644
--- a/tempest/api/compute/images/test_list_images.py
+++ b/tempest/api/compute/images/test_list_images.py
@@ -49,7 +49,3 @@
         resp, images = self.client.list_images_with_detail()
         found = any([i for i in images if i['id'] == self.image_ref])
         self.assertTrue(found)
-
-
-class ListImagesTestXML(ListImagesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/keypairs/test_keypairs.py b/tempest/api/compute/keypairs/test_keypairs.py
index 2f0febf..de8cab9 100644
--- a/tempest/api/compute/keypairs/test_keypairs.py
+++ b/tempest/api/compute/keypairs/test_keypairs.py
@@ -117,7 +117,3 @@
 
 class KeyPairsV2TestJSON(KeyPairsV3Test):
     _api_version = 2
-
-
-class KeyPairsV2TestXML(KeyPairsV2TestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/keypairs/test_keypairs_negative.py b/tempest/api/compute/keypairs/test_keypairs_negative.py
index 0da449b..2cc6f00 100644
--- a/tempest/api/compute/keypairs/test_keypairs_negative.py
+++ b/tempest/api/compute/keypairs/test_keypairs_negative.py
@@ -93,7 +93,3 @@
         k_name = 'key_/.\@:'
         self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           k_name)
-
-
-class KeyPairsNegativeTestXML(KeyPairsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/limits/test_absolute_limits.py b/tempest/api/compute/limits/test_absolute_limits.py
index bac1a39..4420ac7 100644
--- a/tempest/api/compute/limits/test_absolute_limits.py
+++ b/tempest/api/compute/limits/test_absolute_limits.py
@@ -43,7 +43,3 @@
         self.assertEqual(0, len(missing_elements),
                          "Failed to find element %s in absolute limits list"
                          % ', '.join(ele for ele in missing_elements))
-
-
-class AbsoluteLimitsTestXML(AbsoluteLimitsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/limits/test_absolute_limits_negative.py b/tempest/api/compute/limits/test_absolute_limits_negative.py
index 2b41ea0..f729436 100644
--- a/tempest/api/compute/limits/test_absolute_limits_negative.py
+++ b/tempest/api/compute/limits/test_absolute_limits_negative.py
@@ -46,7 +46,3 @@
                           name='test', meta=meta_data,
                           flavor_ref=self.flavor_ref,
                           image_ref=self.image_ref)
-
-
-class AbsoluteLimitsNegativeTestXML(AbsoluteLimitsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/security_groups/test_security_group_rules.py b/tempest/api/compute/security_groups/test_security_group_rules.py
index 4fd5c02..be06213 100644
--- a/tempest/api/compute/security_groups/test_security_group_rules.py
+++ b/tempest/api/compute/security_groups/test_security_group_rules.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import six
-
 from tempest.api.compute.security_groups import base
 from tempest import config
 from tempest import test
@@ -40,13 +38,6 @@
         to_port = cls.to_port
         group = {}
         ip_range = {}
-        if cls._interface == 'xml':
-            # NOTE: An XML response is different from the one of JSON
-            # like the following.
-            from_port = six.text_type(from_port)
-            to_port = six.text_type(to_port)
-            group = {'tenant_id': 'None', 'name': 'None'}
-            ip_range = {'cidr': 'None'}
         cls.expected = {
             'id': None,
             'parent_group_id': None,
@@ -195,7 +186,3 @@
             self.client.list_security_group_rules(sg1_id)
         # The group1 has no rules because group2 has deleted
         self.assertEqual(0, len(rules))
-
-
-class SecurityGroupRulesTestXML(SecurityGroupRulesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/security_groups/test_security_group_rules_negative.py b/tempest/api/compute/security_groups/test_security_group_rules_negative.py
index 7850909..88a99b9 100644
--- a/tempest/api/compute/security_groups/test_security_group_rules_negative.py
+++ b/tempest/api/compute/security_groups/test_security_group_rules_negative.py
@@ -162,7 +162,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.client.delete_security_group_rule,
                           non_existent_rule_id)
-
-
-class SecurityGroupRulesNegativeTestXML(SecurityGroupRulesNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/security_groups/test_security_groups.py b/tempest/api/compute/security_groups/test_security_groups.py
index 82dd4f0..1cfb16b 100644
--- a/tempest/api/compute/security_groups/test_security_groups.py
+++ b/tempest/api/compute/security_groups/test_security_groups.py
@@ -155,7 +155,3 @@
             self.client.get_security_group(securitygroup_id)
         self.assertEqual(s_new_name, fetched_group['name'])
         self.assertEqual(s_new_des, fetched_group['description'])
-
-
-class SecurityGroupsTestXML(SecurityGroupsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/security_groups/test_security_groups_negative.py b/tempest/api/compute/security_groups/test_security_groups_negative.py
index 3101052..ce06180 100644
--- a/tempest/api/compute/security_groups/test_security_groups_negative.py
+++ b/tempest/api/compute/security_groups/test_security_groups_negative.py
@@ -201,7 +201,3 @@
                           self.client.update_security_group,
                           non_exist_id, name=s_name,
                           description=s_description)
-
-
-class SecurityGroupsNegativeTestXML(SecurityGroupsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_attach_interfaces.py b/tempest/api/compute/servers/test_attach_interfaces.py
index d62d19f..049736c 100644
--- a/tempest/api/compute/servers/test_attach_interfaces.py
+++ b/tempest/api/compute/servers/test_attach_interfaces.py
@@ -157,7 +157,3 @@
         resp, body = self.client.remove_fixed_ip(server['id'],
                                                  fixed_ip)
         self.assertEqual(202, resp.status)
-
-
-class AttachInterfacesTestXML(AttachInterfacesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_availability_zone.py b/tempest/api/compute/servers/test_availability_zone.py
index 44bd7d3..28eb274 100644
--- a/tempest/api/compute/servers/test_availability_zone.py
+++ b/tempest/api/compute/servers/test_availability_zone.py
@@ -38,7 +38,3 @@
 
 class AZV2TestJSON(AZV3Test):
     _api_version = 2
-
-
-class AZV2TestXML(AZV2TestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index d954c01..b561b4e 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -103,7 +103,6 @@
                                                   self.password)
         self.assertTrue(linux_client.hostname_equals_servername(self.name))
 
-    @test.skip_because(bug="1306367", interface="xml")
     @test.attr(type='gate')
     def test_create_server_with_scheduler_hint_group(self):
         # Create a server with the scheduler hint "group".
@@ -128,9 +127,6 @@
     @testtools.skipUnless(CONF.service_available.neutron,
                           'Neutron service must be available.')
     def test_verify_multiple_nics_order(self):
-        if getattr(self, '_interface',
-                   None) == 'xml' and not CONF.network_feature_enabled.xml_api:
-            raise self.skipException('Neutron XML API is not enabled')
         # Verify that the networks order given at the server creation is
         # preserved within the server.
         name_net1 = data_utils.rand_name(self.__class__.__name__)
@@ -279,11 +275,3 @@
             msg = "DiskConfig extension not enabled."
             raise cls.skipException(msg)
         super(ServersTestManualDisk, cls).resource_setup()
-
-
-class ServersTestXML(ServersTestJSON):
-    _interface = 'xml'
-
-
-class ServersWithSpecificFlavorTestXML(ServersWithSpecificFlavorTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_delete_server.py b/tempest/api/compute/servers/test_delete_server.py
index 55931a4..9d1ea9e 100644
--- a/tempest/api/compute/servers/test_delete_server.py
+++ b/tempest/api/compute/servers/test_delete_server.py
@@ -169,11 +169,3 @@
         resp, _ = self.admin_client.delete_server(server['id'])
         self.assertEqual('204', resp['status'])
         self.servers_client.wait_for_server_termination(server['id'])
-
-
-class DeleteServersTestXML(DeleteServersTestJSON):
-    _interface = 'xml'
-
-
-class DeleteServersAdminTestXML(DeleteServersAdminTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_disk_config.py b/tempest/api/compute/servers/test_disk_config.py
index 51f2eb4..eeef0e5 100644
--- a/tempest/api/compute/servers/test_disk_config.py
+++ b/tempest/api/compute/servers/test_disk_config.py
@@ -132,7 +132,3 @@
         # Verify the disk_config attribute is set correctly
         resp, server = self.client.get_server(server['id'])
         self.assertEqual('MANUAL', server['OS-DCF:diskConfig'])
-
-
-class ServerDiskConfigTestXML(ServerDiskConfigTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_instance_actions.py b/tempest/api/compute/servers/test_instance_actions.py
index d11ce25..80b2a69 100644
--- a/tempest/api/compute/servers/test_instance_actions.py
+++ b/tempest/api/compute/servers/test_instance_actions.py
@@ -47,7 +47,3 @@
         self.assertEqual(200, resp.status)
         self.assertEqual(self.server_id, body['instance_uuid'])
         self.assertEqual('create', body['action'])
-
-
-class InstanceActionsTestXML(InstanceActionsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_instance_actions_negative.py b/tempest/api/compute/servers/test_instance_actions_negative.py
index c706ad5..e92f04c 100644
--- a/tempest/api/compute/servers/test_instance_actions_negative.py
+++ b/tempest/api/compute/servers/test_instance_actions_negative.py
@@ -41,7 +41,3 @@
         # Get the action details of the provided server with invalid request
         self.assertRaises(exceptions.NotFound, self.client.get_instance_action,
                           self.server_id, '999')
-
-
-class InstanceActionsNegativeTestXML(InstanceActionsNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index e660f00..5ff39df 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -143,7 +143,6 @@
         # Verify only the expected number of servers are returned
         params = {'limit': 1}
         resp, servers = self.client.list_servers(params)
-        # when _interface='xml', one element for servers_links in servers
         self.assertEqual(1, len([x for x in servers['servers'] if 'id' in x]))
 
     @test.attr(type='gate')
@@ -293,7 +292,3 @@
         params = {'limit': 1}
         resp, servers = self.client.list_servers_with_detail(params)
         self.assertEqual(1, len(servers['servers']))
-
-
-class ListServerFiltersTestXML(ListServerFiltersTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_list_servers_negative.py b/tempest/api/compute/servers/test_list_servers_negative.py
index f4d8dda..fd66d2b 100644
--- a/tempest/api/compute/servers/test_list_servers_negative.py
+++ b/tempest/api/compute/servers/test_list_servers_negative.py
@@ -147,7 +147,3 @@
                   if srv['id'] in deleted_ids]
         self.assertEqual('200', resp['status'])
         self.assertEqual([], actual)
-
-
-class ListServersNegativeTestXML(ListServersNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_multiple_create.py b/tempest/api/compute/servers/test_multiple_create.py
index 40b9c16..6fd2a75 100644
--- a/tempest/api/compute/servers/test_multiple_create.py
+++ b/tempest/api/compute/servers/test_multiple_create.py
@@ -53,7 +53,3 @@
                                                    return_reservation_id=True)
         self.assertEqual(resp['status'], '202')
         self.assertIn('reservation_id', body)
-
-
-class MultipleCreateTestXML(MultipleCreateTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_multiple_create_negative.py b/tempest/api/compute/servers/test_multiple_create_negative.py
index 3dea521..55db605 100644
--- a/tempest/api/compute/servers/test_multiple_create_negative.py
+++ b/tempest/api/compute/servers/test_multiple_create_negative.py
@@ -66,7 +66,3 @@
         self.assertRaises(exceptions.BadRequest, self._create_multiple_servers,
                           min_count=min_count,
                           max_count=max_count)
-
-
-class MultipleCreateNegativeTestXML(MultipleCreateNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index b51b46e..28deaa7 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -498,7 +498,3 @@
             self.assertEqual(console_type, body['type'])
             self.assertNotEqual('', body['url'])
             self._validate_url(body['url'])
-
-
-class ServerActionsTestXML(ServerActionsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_addresses.py b/tempest/api/compute/servers/test_server_addresses.py
index a494896..3d1d964 100644
--- a/tempest/api/compute/servers/test_server_addresses.py
+++ b/tempest/api/compute/servers/test_server_addresses.py
@@ -65,7 +65,3 @@
             addr = addr[addr_type]
             for address in addresses[addr_type]:
                 self.assertTrue(any([a for a in addr if a == address]))
-
-
-class ServerAddressesTestXML(ServerAddressesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_addresses_negative.py b/tempest/api/compute/servers/test_server_addresses_negative.py
index c7e4c89..3087e59 100644
--- a/tempest/api/compute/servers/test_server_addresses_negative.py
+++ b/tempest/api/compute/servers/test_server_addresses_negative.py
@@ -42,7 +42,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.client.list_addresses_by_network,
                           self.server['id'], 'invalid')
-
-
-class ServerAddressesNegativeTestXML(ServerAddressesNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_metadata.py b/tempest/api/compute/servers/test_server_metadata.py
index c265352..6fd6a6d 100644
--- a/tempest/api/compute/servers/test_server_metadata.py
+++ b/tempest/api/compute/servers/test_server_metadata.py
@@ -113,7 +113,3 @@
         resp, resp_metadata = self.client.list_server_metadata(self.server_id)
         expected = {'key2': 'value2'}
         self.assertEqual(expected, resp_metadata)
-
-
-class ServerMetadataTestXML(ServerMetadataTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_metadata_negative.py b/tempest/api/compute/servers/test_server_metadata_negative.py
index 497b94b..ad1ec70 100644
--- a/tempest/api/compute/servers/test_server_metadata_negative.py
+++ b/tempest/api/compute/servers/test_server_metadata_negative.py
@@ -155,7 +155,3 @@
         self.assertRaises(exceptions.BadRequest,
                           self.client.set_server_metadata,
                           self.server_id, meta=meta, no_metadata_field=True)
-
-
-class ServerMetadataNegativeTestXML(ServerMetadataNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_password.py b/tempest/api/compute/servers/test_server_password.py
index aba9bb6..994caa4 100644
--- a/tempest/api/compute/servers/test_server_password.py
+++ b/tempest/api/compute/servers/test_server_password.py
@@ -35,7 +35,3 @@
     def test_delete_server_password(self):
         resp, body = self.client.delete_password(self.server['id'])
         self.assertEqual(204, resp.status)
-
-
-class ServerPasswordTestXML(ServerPasswordTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_personality.py b/tempest/api/compute/servers/test_server_personality.py
index effb52f..de5b6c1 100644
--- a/tempest/api/compute/servers/test_server_personality.py
+++ b/tempest/api/compute/servers/test_server_personality.py
@@ -61,7 +61,3 @@
             })
         resp, server = self.create_test_server(personality=person)
         self.assertEqual('202', resp['status'])
-
-
-class ServerPersonalityTestXML(ServerPersonalityTestJSON):
-    _interface = "xml"
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index 5986f41..ee1e268 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -117,7 +117,3 @@
         resp, body = self.servers_client.remove_security_group(self.server_id,
                                                                self.sg_name)
         self.assertEqual(202, resp.status)
-
-
-class ServerRescueTestXML(ServerRescueTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index de43164..f1e2f7f 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -148,7 +148,3 @@
                           self.servers_client.detach_volume,
                           self.server_id,
                           volume['id'])
-
-
-class ServerRescueNegativeTestXML(ServerRescueNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_servers.py b/tempest/api/compute/servers/test_servers.py
index d501839..aba6dff 100644
--- a/tempest/api/compute/servers/test_servers.py
+++ b/tempest/api/compute/servers/test_servers.py
@@ -124,7 +124,3 @@
         self.client.wait_for_server_status(server['id'], 'ACTIVE')
         resp, server = self.client.get_server(server['id'])
         self.assertEqual('2001:2001::3', server['accessIPv6'])
-
-
-class ServersTestXML(ServersTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 0349260..1a338bd 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -181,10 +181,6 @@
 
     @test.attr(type=['negative', 'gate'])
     def test_create_numeric_server_name(self):
-        # Create a server with a numeric name
-        if self.__class__._interface == "xml":
-            raise self.skipException("Not testable in XML")
-
         server_name = 12345
         self.assertRaises(exceptions.BadRequest,
                           self.create_test_server,
@@ -471,7 +467,3 @@
         self.assertRaises(exceptions.Conflict,
                           self.client.unshelve_server,
                           self.server_id)
-
-
-class ServersNegativeTestXML(ServersNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_virtual_interfaces.py b/tempest/api/compute/servers/test_virtual_interfaces.py
index f205761..48af084 100644
--- a/tempest/api/compute/servers/test_virtual_interfaces.py
+++ b/tempest/api/compute/servers/test_virtual_interfaces.py
@@ -50,7 +50,3 @@
             mac_address = virt_iface['mac_address']
             self.assertTrue(netaddr.valid_mac(mac_address),
                             "Invalid mac address detected.")
-
-
-class VirtualInterfacesTestXML(VirtualInterfacesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/servers/test_virtual_interfaces_negative.py b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
index 1f4a20e..e81ccc6 100644
--- a/tempest/api/compute/servers/test_virtual_interfaces_negative.py
+++ b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
@@ -38,7 +38,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.client.list_virtual_interfaces,
                           invalid_server_id)
-
-
-class VirtualInterfacesNegativeTestXML(VirtualInterfacesNegativeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/test_authorization.py b/tempest/api/compute/test_authorization.py
index 175f008..1f4f124 100644
--- a/tempest/api/compute/test_authorization.py
+++ b/tempest/api/compute/test_authorization.py
@@ -379,7 +379,3 @@
         self.assertRaises(exceptions.NotFound,
                           self.alt_client.get_console_output,
                           self.server['id'], 10)
-
-
-class AuthorizationTestXML(AuthorizationTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/test_extensions.py b/tempest/api/compute/test_extensions.py
index 674ca9a..25e14a8 100644
--- a/tempest/api/compute/test_extensions.py
+++ b/tempest/api/compute/test_extensions.py
@@ -52,7 +52,3 @@
         resp, extension = self.extensions_client.get_extension('os-consoles')
         self.assertEqual(200, resp.status)
         self.assertEqual('os-consoles', extension['alias'])
-
-
-class ExtensionsTestXML(ExtensionsTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/test_live_block_migration.py b/tempest/api/compute/test_live_block_migration.py
index 86b8395..cb75d07 100644
--- a/tempest/api/compute/test_live_block_migration.py
+++ b/tempest/api/compute/test_live_block_migration.py
@@ -130,9 +130,3 @@
         self._migrate_server_to(server_id, target_host)
         self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
         self.assertEqual(target_host, self._get_host_for_server(server_id))
-
-
-class LiveBlockMigrationTestXML(LiveBlockMigrationTestJSON):
-    _host_key = (
-        '{http://docs.openstack.org/compute/ext/extended_status/api/v1.1}host')
-    _interface = 'xml'
diff --git a/tempest/api/compute/test_live_block_migration_negative.py b/tempest/api/compute/test_live_block_migration_negative.py
index 95eea19..281b2b3 100644
--- a/tempest/api/compute/test_live_block_migration_negative.py
+++ b/tempest/api/compute/test_live_block_migration_negative.py
@@ -51,9 +51,3 @@
         self.assertRaises(exceptions.BadRequest, self._migrate_server_to,
                           server_id, target_host)
         self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
-
-
-class LiveBlockMigrationNegativeTestXML(LiveBlockMigrationNegativeTestJSON):
-    _host_key = (
-        '{http://docs.openstack.org/compute/ext/extended_status/api/v1.1}host')
-    _interface = 'xml'
diff --git a/tempest/api/compute/test_quotas.py b/tempest/api/compute/test_quotas.py
index e66b652..4177751 100644
--- a/tempest/api/compute/test_quotas.py
+++ b/tempest/api/compute/test_quotas.py
@@ -76,7 +76,3 @@
         resp, tenant_quota_set = self.client.get_quota_set(self.tenant_id)
         self.assertEqual(200, resp.status)
         self.assertEqual(defualt_quota_set, tenant_quota_set)
-
-
-class QuotasTestXML(QuotasTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index 75f9795..1d22fbd 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -111,7 +111,6 @@
         partitions = linux_client.get_partitions()
         self.assertNotIn(self.device, partitions)
 
-    @test.skip_because(bug="1323591", interface="xml")
     @test.attr(type='gate')
     def test_list_get_volume_attachments(self):
         # Create Server, Volume and attach that Volume to Server
@@ -129,7 +128,3 @@
         self.assertEqual(self.server['id'], body['serverId'])
         self.assertEqual(self.volume['id'], body['volumeId'])
         self.assertEqual(self.attachment['id'], body['id'])
-
-
-class AttachVolumeTestXML(AttachVolumeTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index 4f77fa7..d441427 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -71,7 +71,3 @@
                         matchers.ContainsAll(metadata.items()),
                         'The fetched Volume metadata misses data '
                         'from the created Volume')
-
-
-class VolumesGetTestXML(VolumesGetTestJSON):
-    _interface = "xml"
diff --git a/tempest/api/compute/volumes/test_volumes_list.py b/tempest/api/compute/volumes/test_volumes_list.py
index dc54c67..6bf9519 100644
--- a/tempest/api/compute/volumes/test_volumes_list.py
+++ b/tempest/api/compute/volumes/test_volumes_list.py
@@ -165,7 +165,3 @@
                              all_vol_list[index + params['offset']]['id'],
                              "Failed to list volume details by "
                              "offset and limit")
-
-
-class VolumesTestXML(VolumesTestJSON):
-    _interface = 'xml'
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index ad94ea7..f0f9879 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -98,7 +98,3 @@
     def test_delete_volume_without_passing_volume_id(self):
         # Negative: Should not be able to delete volume when empty ID is passed
         self.assertRaises(exceptions.NotFound, self.client.delete_volume, '')
-
-
-class VolumesNegativeTestXML(VolumesNegativeTest):
-    _interface = "xml"