diff --git a/openstack_dashboard/dashboards/project/instances/tests.py b/openstack_dashboard/dashboards/project/instances/tests.py
index 6ad04a529f..8fc35415b2 100644
--- a/openstack_dashboard/dashboards/project/instances/tests.py
+++ b/openstack_dashboard/dashboards/project/instances/tests.py
@@ -194,7 +194,10 @@ class InstanceTableTests(InstanceTestBase, InstanceTableTestMixin):
             'servers_update_addresses',
         ),
         api.cinder: ('volume_list',),
-    })
+    }, stop_mock=False)
+    # NOTE: _get_index() and _check_get_index() are used as pair
+    # and the test logic will be placed between these calls,
+    # so we cannot stop mocking when exiting this method.
     def _get_index(self, use_servers_update_address=True):
         servers = self.servers.list()
         self.mock_is_feature_available.return_value = True
diff --git a/openstack_dashboard/dashboards/project/overview/tests.py b/openstack_dashboard/dashboards/project/overview/tests.py
index d6dac2cdfb..0e07f28b4f 100644
--- a/openstack_dashboard/dashboards/project/overview/tests.py
+++ b/openstack_dashboard/dashboards/project/overview/tests.py
@@ -35,8 +35,12 @@ class UsageViewTests(test.TestCase):
 
     @test.create_mocks({
         api.nova: ('usage_get',),
-        api.neutron: ('is_quotas_extension_supported',)
-    })
+        api.neutron: ('is_quotas_extension_supported',),
+        usage.quotas: ('tenant_quota_usages',),
+    }, stop_mock=False)
+    # NOTE: _stub_api_calls() and _check_api_calls() are used as pair
+    # and the test logic will be placed between these calls,
+    # so we cannot stop mocking when exiting this method.
     def _stub_api_calls(self, nova_stu_enabled=True,
                         stu_exception=False, overview_days_range=1,
                         quota_usage_overrides=None,
@@ -70,7 +74,6 @@ class UsageViewTests(test.TestCase):
             usages.add_quota(api.base.Quota(k, quota))
             usages.tally(k, quota_usages[k]['used'])
 
-    @test.create_mocks({usage.quotas: ('tenant_quota_usages',)})
     def _stub_tenant_quota_usages(self, overrides):
         usages_data = usage.quotas.QuotaUsage()
         self._add_quota_usages(usages_data, self.quota_usages.first(),
diff --git a/openstack_dashboard/test/helpers.py b/openstack_dashboard/test/helpers.py
index fc3c3576ec..42ef34fc73 100644
--- a/openstack_dashboard/test/helpers.py
+++ b/openstack_dashboard/test/helpers.py
@@ -54,7 +54,7 @@ IsA = horizon_helpers.IsA
 IsHttpRequest = horizon_helpers.IsHttpRequest
 
 
-def create_mocks(target_methods):
+def create_mocks(target_methods, stop_mock=True):
     """decorator to simplify setting up multiple mocks at once
 
     :param target_methods: a dict to define methods to be patched using mock.
@@ -109,10 +109,14 @@ def create_mocks(target_methods):
             self.mock_cinder_tenant_absolute_limits.return_value = ...
             ...
 
+    :param stop_mock: If True (default), mocks started in this decorator will
+        be stopped. Set this to False only if you cannot stop mocks when exiting
+        this decorator. The default value, True, should work for most cases.
     """
     def wrapper(function):
         @wraps(function)
         def wrapped(inst, *args, **kwargs):
+            patchers = []
             for target, methods in target_methods.items():
                 for method in methods:
                     if isinstance(method, str):
@@ -122,8 +126,13 @@ def create_mocks(target_methods):
                         method_mocked = method[0]
                         attr_name = method[1]
                     m = mock.patch.object(target, method_mocked)
+                    patchers.append(m)
                     setattr(inst, 'mock_%s' % attr_name, m.start())
-            return function(inst, *args, **kwargs)
+            retval = function(inst, *args, **kwargs)
+            if stop_mock:
+                for m in patchers:
+                    m.stop()
+            return retval
         return wrapped
     return wrapper