diff --git a/tempest/api/compute/admin/test_migrations.py b/tempest/api/compute/admin/test_migrations.py
index a6b71b2..e030575 100644
--- a/tempest/api/compute/admin/test_migrations.py
+++ b/tempest/api/compute/admin/test_migrations.py
@@ -106,7 +106,7 @@
                                        'ACTIVE')
 
         server = self.servers_client.show_server(server['id'])['server']
-        self.assertEqual(flavor['id'], server['flavor']['id'])
+        self.assert_flavor_equal(flavor['id'], server['flavor'])
 
     def _test_cold_migrate_server(self, revert=False):
         if CONF.compute.min_compute_nodes < 2:
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index cdfc44a..170b2cc 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -176,7 +176,7 @@
         self.assertEqual(self.s1_id, rebuilt_server['id'])
         rebuilt_image_id = rebuilt_server['image']['id']
         self.assertEqual(self.image_ref_alt, rebuilt_image_id)
-        self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref, rebuilt_server['flavor'])
         waiters.wait_for_server_status(self.non_admin_client,
                                        rebuilt_server['id'], 'ACTIVE',
                                        raise_on_error=False)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index d0c1973..7fbb994 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -428,21 +428,16 @@
         except Exception:
             LOG.exception('Failed to delete server %s', server_id)
 
-    @classmethod
-    def resize_server(cls, server_id, new_flavor_id, **kwargs):
+    def resize_server(self, server_id, new_flavor_id, **kwargs):
         """resize and confirm_resize an server, waits for it to be ACTIVE."""
-        cls.servers_client.resize_server(server_id, new_flavor_id, **kwargs)
-        waiters.wait_for_server_status(cls.servers_client, server_id,
+        self.servers_client.resize_server(server_id, new_flavor_id, **kwargs)
+        waiters.wait_for_server_status(self.servers_client, server_id,
                                        'VERIFY_RESIZE')
-        cls.servers_client.confirm_resize_server(server_id)
-        waiters.wait_for_server_status(cls.servers_client, server_id, 'ACTIVE')
-        server = cls.servers_client.show_server(server_id)['server']
-        # Nova API > 2.46 no longer includes flavor.id
-        if server['flavor'].get('id'):
-            if new_flavor_id != server['flavor']['id']:
-                msg = ('Flavor id of %s is not equal to new_flavor_id.'
-                       % server_id)
-                raise lib_exc.TempestException(msg)
+        self.servers_client.confirm_resize_server(server_id)
+        waiters.wait_for_server_status(
+            self.servers_client, server_id, 'ACTIVE')
+        server = self.servers_client.show_server(server_id)['server']
+        self.assert_flavor_equal(new_flavor_id, server['flavor'])
 
     @classmethod
     def delete_volume(cls, volume_id):
@@ -561,6 +556,27 @@
                                                 volume['id'], 'in-use')
         return attachment
 
+    def assert_flavor_equal(self, flavor_id, server_flavor):
+        """Check whether server_flavor equals to flavor.
+
+        :param flavor_id: flavor id
+        :param server_flavor: flavor info returned by show_server.
+        """
+        # Nova API > 2.46 no longer includes flavor.id, and schema check
+        # will cover whether 'id' should be in flavor
+        if server_flavor.get('id'):
+            msg = ('server flavor is not same as flavor!')
+            self.assertEqual(flavor_id, server_flavor['id'], msg)
+        else:
+            flavor = self.flavors_client.show_flavor(flavor_id)['flavor']
+            self.assertEqual(flavor['name'], server_flavor['original_name'],
+                             "original_name in server flavor is not same as "
+                             "flavor name!")
+            for key in ['ram', 'vcpus', 'disk']:
+                msg = ('attribute %s in server flavor is not same as '
+                       'flavor!' % key)
+                self.assertEqual(flavor[key], server_flavor[key], msg)
+
 
 class BaseV2ComputeAdminTest(BaseV2ComputeTest):
     """Base test case class for Compute Admin API tests."""
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index 122c4f5..4f0dbad 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -80,7 +80,7 @@
             self.assertEqual("", self.server['image'])
         else:
             self.assertEqual(self.image_ref, self.server['image']['id'])
-        self.assertEqual(self.flavor_ref, self.server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref, self.server['flavor'])
         self.assertEqual(self.meta, self.server['metadata'])
 
     @decorators.attr(type='smoke')
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 961b2b7..896abbb 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -197,7 +197,7 @@
         self.assertEqual(self.server_id, rebuilt_server['id'])
         rebuilt_image_id = rebuilt_server['image']['id']
         self.assertTrue(self.image_ref_alt.endswith(rebuilt_image_id))
-        self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref, rebuilt_server['flavor'])
 
         # Verify the server properties after the rebuild completes
         waiters.wait_for_server_status(self.client,
@@ -251,7 +251,7 @@
         self.assertEqual(self.server_id, rebuilt_server['id'])
         rebuilt_image_id = rebuilt_server['image']['id']
         self.assertEqual(new_image, rebuilt_image_id)
-        self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref, rebuilt_server['flavor'])
 
         # Verify the server properties after the rebuild completes
         waiters.wait_for_server_status(self.client,
@@ -303,7 +303,7 @@
                                        expected_status)
 
         server = self.client.show_server(server_id)['server']
-        self.assertEqual(self.flavor_ref_alt, server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref_alt, server['flavor'])
 
         if stop:
             # NOTE(mriedem): tearDown requires the server to be started.
@@ -367,7 +367,7 @@
         waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         server = self.client.show_server(self.server_id)['server']
-        self.assertEqual(self.flavor_ref, server['flavor']['id'])
+        self.assert_flavor_equal(self.flavor_ref, server['flavor'])
 
     @decorators.idempotent_id('fbbf075f-a812-4022-bc5c-ccb8047eef12')
     @decorators.related_bug('1737599')
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index b0e4669..7452ee6 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -197,7 +197,14 @@
                                        'VERIFY_RESIZE')
         self.servers_client.confirm_resize_server(server['id'])
         server = self.servers_client.show_server(server['id'])['server']
-        self.assertEqual(resize_flavor, server['flavor']['id'])
+        # Nova API > 2.46 no longer includes flavor.id, and schema check
+        # will cover whether 'id' should be in flavor
+        if server['flavor'].get('id'):
+            self.assertEqual(resize_flavor, server['flavor']['id'])
+        else:
+            flavor = self.flavors_client.show_flavor(resize_flavor)['flavor']
+            for key in ['original_name', 'ram', 'vcpus', 'disk']:
+                self.assertEqual(flavor[key], server['flavor'][key])
         self._wait_server_status_and_check_network_connectivity(
             server, keypair, floating_ip)