diff --git a/manila_tempest_tests/tests/api/test_share_network_subnets_negative.py b/manila_tempest_tests/tests/api/test_share_network_subnets_negative.py
index 7cedc07..aa9ce67 100644
--- a/manila_tempest_tests/tests/api/test_share_network_subnets_negative.py
+++ b/manila_tempest_tests/tests/api/test_share_network_subnets_negative.py
@@ -202,20 +202,32 @@
     @testtools.skipIf(not CONF.share.multitenancy_enabled,
                       'Can run only with drivers that do handle share servers '
                       'creation. Skipping.')
+    @testtools.skipIf(CONF.share.share_network_id != "",
+                      "This test is not suitable for pre-existing "
+                      "share_network.")
     def test_delete_contains_shares(self):
         # Get a compatible availability zone
         az = self.get_availability_zones_matching_share_type(
             self.share_type)[0]
 
-        share_network = self.shares_v2_client.get_share_network(
+        original_share_network = self.shares_v2_client.get_share_network(
             self.shares_v2_client.share_network_id
         )
+        share_net_info = (
+            utils.share_network_get_default_subnet(original_share_network))
+        share_network = self.create_share_network(
+            neutron_net_id=share_net_info['neutron_net_id'],
+            neutron_subnet_id=share_net_info['neutron_subnet_id'],
+        )
+        share_network = self.shares_v2_client.get_share_network(
+            share_network['id']
+        )
         share_network_id = share_network['id']
-        subnet = utils.share_network_get_default_subnet(share_network)
+        default_subnet = share_network['share_network_subnets'][0]
 
         # Generate subnet data
-        data = {'neutron_net_id': subnet['neutron_net_id'],
-                'neutron_subnet_id': subnet['neutron_subnet_id'],
+        data = {'neutron_net_id': default_subnet['neutron_net_id'],
+                'neutron_subnet_id': default_subnet['neutron_subnet_id'],
                 'share_network_id': share_network_id,
                 'availability_zone': az}