Add tests for domain users interacting with idps

This commit introduces some tests that show how domain users are
expected to behave with the federated identity provider API. A
subsequent patch will do the same for project users.

Change-Id: Ie48c8001aec9ef8f3e2d7540d7dd7e8e2231c811
Related-Bug: 1804517

keystone/tests/unit/protection/v3/test_identity_providers.py

@@ -95,6 +95,69 @@ class _SystemReaderAndMemberIdentityProviderTests(object):
             )
 
 
+class _DomainAndProjectUserIdentityProviderTests(object):
+    """Common functionality for all domain and project users."""
+
+    def test_user_cannot_create_identity_providers(self):
+        create = {'identity_provider': {'remote_ids': [uuid.uuid4().hex]}}
+
+        with self.test_client() as c:
+            c.put(
+                '/v3/OS-FEDERATION/identity_providers/%s' % uuid.uuid4().hex,
+                json=create, headers=self.headers,
+                expected_status_code=http_client.FORBIDDEN
+            )
+
+    def test_user_cannot_update_identity_providers(self):
+        idp = PROVIDERS.federation_api.create_idp(
+            uuid.uuid4().hex, unit.new_identity_provider_ref()
+        )
+
+        update = {'identity_provider': {'enabled': False}}
+
+        with self.test_client() as c:
+            c.patch(
+                '/v3/OS-FEDERATION/identity_providers/%s' % idp['id'],
+                json=update, headers=self.headers,
+                expected_status_code=http_client.FORBIDDEN
+            )
+
+    def test_user_cannot_list_identity_providers(self):
+        PROVIDERS.federation_api.create_idp(
+            uuid.uuid4().hex, unit.new_identity_provider_ref()
+        )
+
+        with self.test_client() as c:
+            c.get(
+                '/v3/OS-FEDERATION/identity_providers', headers=self.headers,
+                expected_status_code=http_client.FORBIDDEN
+            )
+
+    def test_user_cannot_get_an_identity_provider(self):
+        idp = PROVIDERS.federation_api.create_idp(
+            uuid.uuid4().hex, unit.new_identity_provider_ref()
+        )
+
+        with self.test_client() as c:
+            c.get(
+                '/v3/OS-FEDERATION/identity_providers/%s' % idp['id'],
+                headers=self.headers,
+                expected_status_code=http_client.FORBIDDEN
+            )
+
+    def test_user_cannot_delete_identity_providers(self):
+        idp = PROVIDERS.federation_api.create_idp(
+            uuid.uuid4().hex, unit.new_identity_provider_ref()
+        )
+
+        with self.test_client() as c:
+            c.delete(
+                '/v3/OS-FEDERATION/identity_providers/%s' % idp['id'],
+                headers=self.headers,
+                expected_status_code=http_client.FORBIDDEN
+            )
+
+
 class SystemReaderTests(base_classes.TestCaseWithBootstrap,
                         common_auth.AuthTestMixin,
                         _SystemUserIdentityProviderTests,
@@ -222,3 +285,38 @@ class SystemAdminTests(base_classes.TestCaseWithBootstrap,
                 '/v3/OS-FEDERATION/identity_providers/%s' % idp['id'],
                 headers=self.headers
             )
+
+
+class DomainUserTests(base_classes.TestCaseWithBootstrap,
+                      common_auth.AuthTestMixin,
+                      _DomainAndProjectUserIdentityProviderTests):
+
+    def setUp(self):
+        super(DomainUserTests, self).setUp()
+        self.loadapp()
+        self.useFixture(ksfixtures.Policy(self.config_fixture))
+        self.config_fixture.config(group='oslo_policy', enforce_scope=True)
+
+        domain = PROVIDERS.resource_api.create_domain(
+            uuid.uuid4().hex, unit.new_domain_ref()
+        )
+        self.domain_id = domain['id']
+        domain_admin = unit.new_user_ref(domain_id=self.domain_id)
+        self.user_id = PROVIDERS.identity_api.create_user(domain_admin)['id']
+        PROVIDERS.assignment_api.create_grant(
+            self.bootstrapper.admin_role_id, user_id=self.user_id,
+            domain_id=self.domain_id
+        )
+
+        auth = self.build_authentication_request(
+            user_id=self.user_id,
+            password=domain_admin['password'],
+            domain_id=self.domain_id
+        )
+
+        # Grab a token using the persona we're testing and prepare headers
+        # for requests we'll be making in the tests.
+        with self.test_client() as c:
+            r = c.post('/v3/auth/tokens', json=auth)
+            self.token_id = r.headers['X-Subject-Token']
+            self.headers = {'X-Auth-Token': self.token_id}