diff --git a/nova/tests/unit/api/openstack/compute/test_migrations.py b/nova/tests/unit/api/openstack/compute/test_migrations.py
index 843b8965d8f9..edd1197a75ad 100644
--- a/nova/tests/unit/api/openstack/compute/test_migrations.py
+++ b/nova/tests/unit/api/openstack/compute/test_migrations.py
@@ -504,36 +504,3 @@ class MigrationsTestCaseV280(MigrationTestCaseV266):
                                self.controller.index, req)
         self.assertIn('Additional properties are not allowed',
                       six.text_type(ex))
-
-
-class MigrationsPolicyEnforcement(test.NoDBTestCase):
-    def setUp(self):
-        super(MigrationsPolicyEnforcement, self).setUp()
-        self.controller = migrations_v21.MigrationsController()
-        self.req = fakes.HTTPRequest.blank('')
-
-    def test_list_policy_failed(self):
-        rule_name = "os_compute_api:os-migrations:index"
-        self.policy.set_rules({rule_name: "project_id:non_fake"})
-        exc = self.assertRaises(
-            exception.PolicyNotAuthorized,
-            self.controller.index, self.req)
-        self.assertEqual(
-            "Policy doesn't allow %s to be performed." % rule_name,
-            exc.format_message())
-
-
-class MigrationsPolicyEnforcementV223(MigrationsPolicyEnforcement):
-    wsgi_api_version = '2.23'
-
-    def setUp(self):
-        super(MigrationsPolicyEnforcementV223, self).setUp()
-        self.req = fakes.HTTPRequest.blank('', version=self.wsgi_api_version)
-
-
-class MigrationsPolicyEnforcementV259(MigrationsPolicyEnforcementV223):
-    wsgi_api_version = '2.59'
-
-
-class MigrationsPolicyEnforcementV280(MigrationsPolicyEnforcementV259):
-    wsgi_api_version = '2.80'
diff --git a/nova/tests/unit/policies/test_migrations.py b/nova/tests/unit/policies/test_migrations.py
new file mode 100644
index 000000000000..b26306f7873b
--- /dev/null
+++ b/nova/tests/unit/policies/test_migrations.py
@@ -0,0 +1,70 @@
+#    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 mock
+
+from nova.api.openstack.compute import migrations
+from nova.policies import migrations as migrations_policies
+from nova.tests.unit.api.openstack import fakes
+from nova.tests.unit.policies import base
+
+
+class MigrationsPolicyTest(base.BasePolicyTest):
+    """Test Migrations APIs policies with all possible context.
+
+    This class defines the set of context with different roles
+    which are allowed and not allowed to pass the policy checks.
+    With those set of context, it will call the API operation and
+    verify the expected behaviour.
+    """
+
+    def setUp(self):
+        super(MigrationsPolicyTest, self).setUp()
+        self.controller = migrations.MigrationsController()
+        self.req = fakes.HTTPRequest.blank('')
+
+        # Check that admin is able to list migrations.
+        self.admin_authorized_contexts = [
+            self.legacy_admin_context, self.system_admin_context,
+            self.project_admin_context
+        ]
+        # Check that non-admin is not able to list migrations.
+        self.admin_unauthorized_contexts = [
+            self.system_member_context, self.system_reader_context,
+            self.system_foo_context, self.project_member_context,
+            self.project_reader_context, self.project_foo_context,
+            self.other_project_member_context
+        ]
+
+    @mock.patch('nova.compute.api.API.get_migrations')
+    def test_list_migrations_policy(self, mock_migration):
+        rule_name = migrations_policies.POLICY_ROOT % 'index'
+        self.common_policy_check(self.admin_authorized_contexts,
+                                 self.admin_unauthorized_contexts,
+                                 rule_name, self.controller.index,
+                                 self.req)
+
+
+class MigrationsScopeTypePolicyTest(MigrationsPolicyTest):
+    """Test Migrations APIs policies with system scope enabled.
+
+    This class set the nova.conf [oslo_policy] enforce_scope to True
+    so that we can switch on the scope checking on oslo policy side.
+    It defines the set of context with scoped token
+    which are allowed and not allowed to pass the policy checks.
+    With those set of context, it will run the API operation and
+    verify the expected behaviour.
+    """
+
+    def setUp(self):
+        super(MigrationsScopeTypePolicyTest, self).setUp()
+        self.flags(enforce_scope=True, group="oslo_policy")