diff --git a/releasenotes/notes/Add-keystone-v3-OS_FEDERATION-APIs-as-tempest-clients-fe9e10a0fe5f09d4.yaml b/releasenotes/notes/Add-keystone-v3-OS_FEDERATION-APIs-as-tempest-clients-fe9e10a0fe5f09d4.yaml
new file mode 100644
index 0000000..33df7c4
--- /dev/null
+++ b/releasenotes/notes/Add-keystone-v3-OS_FEDERATION-APIs-as-tempest-clients-fe9e10a0fe5f09d4.yaml
@@ -0,0 +1,10 @@
+---
+features:
+  - |
+    The following tempest clients for keystone v3 OS_FEDERATION API were
+    implemented in this release
+
+    * identity_providers
+    * protocols
+    * mappings
+    * service_providers
diff --git a/tempest/lib/services/identity/v3/identity_providers_client.py b/tempest/lib/services/identity/v3/identity_providers_client.py
new file mode 100644
index 0000000..af6a245
--- /dev/null
+++ b/tempest/lib/services/identity/v3/identity_providers_client.py
@@ -0,0 +1,92 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
+
+from tempest.lib.common import rest_client
+
+
+class IdentityProvidersClient(rest_client.RestClient):
+
+    def register_identity_provider(self, identity_provider_id, **kwargs):
+        """Register an identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#register-an-identity-provider
+        """
+        post_body = json.dumps({'identity_provider': kwargs})
+        resp, body = self.put(
+            'OS-FEDERATION/identity_providers/%s' % identity_provider_id,
+            post_body)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_identity_providers(self, **params):
+        """List identity providers.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#list-identity-providers
+        """
+        url = 'identity_providers'
+        if params:
+            url += '?%s' % urllib.urlencode(params)
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def get_identity_provider(self, identity_provider_id):
+        """Get identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#get-identity-provider
+        """
+        resp, body = self.get(
+            'OS-FEDERATION/identity_providers/%s' % identity_provider_id)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_identity_provider(self, identity_provider_id):
+        """Delete identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#delete-identity-provider
+        """
+        resp, body = self.delete(
+            'OS-FEDERATION/identity_providers/%s' % identity_provider_id)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_identity_provider(self, identity_provider_id, **kwargs):
+        """Update identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#update-identity-provider
+        """
+        post_body = json.dumps({'identity_provider': kwargs})
+        resp, body = self.patch(
+            'OS-FEDERATION/identity_providers/%s' % identity_provider_id,
+            post_body)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/identity/v3/mappings_client.py b/tempest/lib/services/identity/v3/mappings_client.py
new file mode 100644
index 0000000..9ec5384
--- /dev/null
+++ b/tempest/lib/services/identity/v3/mappings_client.py
@@ -0,0 +1,90 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
+
+from tempest.lib.common import rest_client
+
+
+class MappingsClient(rest_client.RestClient):
+
+    def create_mapping(self, mapping_id, **kwargs):
+        """Create a mapping.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#create-a-mapping
+        """
+        post_body = json.dumps({'mapping': kwargs})
+        resp, body = self.put(
+            'OS-FEDERATION/mappings/%s' % mapping_id, post_body)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def get_mapping(self, mapping_id):
+        """Get a mapping.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#get-a-mapping
+        """
+        resp, body = self.get(
+            'OS-FEDERATION/mappings/%s' % mapping_id)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_mapping(self, mapping_id, **kwargs):
+        """Update a mapping.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#update-a-mapping
+        """
+        post_body = json.dumps({'mapping': kwargs})
+        resp, body = self.patch(
+            'OS-FEDERATION/mappings/%s' % mapping_id, post_body)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_mappings(self, **kwargs):
+        """List mappings.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#list-mappings
+        """
+        url = 'OS-FEDERATION/mappings'
+        if kwargs:
+            url += '?%s' % urllib.urlencode(kwargs)
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_mapping(self, mapping_id):
+        """Delete a mapping.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#delete-a-mapping
+        """
+        resp, body = self.delete(
+            'OS-FEDERATION/mappings/%s' % mapping_id)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/identity/v3/protocols_client.py b/tempest/lib/services/identity/v3/protocols_client.py
new file mode 100644
index 0000000..2e0221b
--- /dev/null
+++ b/tempest/lib/services/identity/v3/protocols_client.py
@@ -0,0 +1,96 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
+
+from tempest.lib.common import rest_client
+
+
+class ProtocolsClient(rest_client.RestClient):
+
+    def add_protocol_to_identity_provider(self, idp_id, protocol_id,
+                                          **kwargs):
+        """Add protocol to identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#add-protocol-to-identity-provider
+        """
+        post_body = json.dumps({'protocol': kwargs})
+        resp, body = self.put(
+            'OS-FEDERATION/identity_providers/%s/protocols/%s'
+            % (idp_id, protocol_id), post_body)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_protocols_of_identity_provider(self, idp_id, **kwargs):
+        """List protocols of identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#list-protocols-of-identity-provider
+        """
+        url = 'OS-FEDERATION/identity_providers/%s/protocols' % idp_id
+        if kwargs:
+            url += '?%s' % urllib.urlencode(kwargs)
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def get_protocol_for_identity_provider(self, idp_id, protocol_id):
+        """Get protocol for identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#get-protocol-for-identity-provider
+        """
+        resp, body = self.get(
+            'OS-FEDERATION/identity_providers/%s/protocols/%s'
+            % (idp_id, protocol_id))
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_mapping_for_identity_provider(self, idp_id, protocol_id,
+                                             **kwargs):
+        """Update attribute mapping for identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#update-attribute-mapping-for-identity-provider
+        """
+        post_body = json.dumps({'protocol': kwargs})
+        resp, body = self.patch(
+            'OS-FEDERATION/identity_providers/%s/protocols/%s'
+            % (idp_id, protocol_id), post_body)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_protocol_from_identity_provider(self, idp_id, protocol_id):
+        """Delete a protocol from identity provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#delete-a-protocol-from-identity-provider
+        """
+        resp, body = self.delete(
+            'OS-FEDERATION/identity_providers/%s/protocols/%s'
+            % (idp_id, protocol_id))
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/identity/v3/service_providers_client.py b/tempest/lib/services/identity/v3/service_providers_client.py
new file mode 100644
index 0000000..b84cf43
--- /dev/null
+++ b/tempest/lib/services/identity/v3/service_providers_client.py
@@ -0,0 +1,92 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
+
+from tempest.lib.common import rest_client
+
+
+class ServiceProvidersClient(rest_client.RestClient):
+
+    def register_service_provider(self, service_provider_id, **kwargs):
+        """Register a service provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#register-a-service-provider
+        """
+        post_body = json.dumps({'service_provider': kwargs})
+        resp, body = self.put(
+            'OS-FEDERATION/service_providers/%s' % service_provider_id,
+            post_body)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_service_providers(self, **kwargs):
+        """List service providers.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#list-service-providers
+        """
+        url = 'OS-FEDERATION/service_providers'
+        if kwargs:
+            url += '?%s' % urllib.urlencode(kwargs)
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def get_service_provider(self, service_provider_id):
+        """Get a service provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#get-service-provider
+        """
+        resp, body = self.get(
+            'OS-FEDERATION/service_providers/%s' % service_provider_id)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_service_provider(self, service_provider_id):
+        """Delete a service provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#delete-service-provider
+        """
+        resp, body = self.delete(
+            'OS-FEDERATION/service_providers/%s' % service_provider_id)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_service_provider(self, service_provider_id, **kwargs):
+        """Update a service provider.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://docs.openstack.org/api-ref/identity/v3-ext/index.html#update-service-provider
+        """
+        post_body = json.dumps({'service_provider': kwargs})
+        resp, body = self.patch(
+            'OS-FEDERATION/service_providers/%s' % service_provider_id,
+            post_body)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/tests/lib/services/identity/v3/test_identity_providers_client.py b/tempest/tests/lib/services/identity/v3/test_identity_providers_client.py
new file mode 100644
index 0000000..964c51b
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_identity_providers_client.py
@@ -0,0 +1,142 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from tempest.lib.services.identity.v3 import identity_providers_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestIdentityProvidersClient(base.BaseServiceTest):
+    FAKE_IDENTITY_PROVIDERS_INFO = {
+        "identity_providers": [
+            {
+                "domain_id": "FAKE_DOMAIN_ID",
+                "description": "FAKE IDENTITY PROVIDER",
+                "remote_ids": ["fake_id_1", "fake_id_2"],
+                "enabled": True,
+                "id": "FAKE_ID",
+                "links": {
+                    "protocols": "http://example.com/identity/v3/" +
+                                 "OS-FEDERATION/identity_providers/" +
+                                 "FAKE_ID/protocols",
+                    "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                            "identity_providers/FAKE_ID"
+                }
+            }
+        ],
+        "links": {
+            "next": None,
+            "previous": None,
+            "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                    "identity_providers"
+        }
+    }
+
+    FAKE_IDENTITY_PROVIDER_INFO = {
+        "identity_provider": {
+            "authorization_ttl": None,
+            "domain_id": "FAKE_DOMAIN_ID",
+            "description": "FAKE IDENTITY PROVIDER",
+            "remote_ids": ["fake_id_1", "fake_id_2"],
+            "enabled": True,
+            "id": "ACME",
+            "links": {
+                "protocols": "http://example.com/identity/v3/OS-FEDERATION/" +
+                             "identity_providers/FAKE_ID/protocols",
+                "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                        "identity_providers/FAKE_ID"
+            }
+        }
+    }
+
+    def setUp(self):
+        super(TestIdentityProvidersClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = identity_providers_client.IdentityProvidersClient(
+            fake_auth, 'identity', 'regionOne')
+
+    def _test_register_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.register_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.put',
+            self.FAKE_IDENTITY_PROVIDER_INFO,
+            bytes_body,
+            identity_provider_id="FAKE_ID",
+            status=201)
+
+    def _test_list_identity_providers(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_identity_providers,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_IDENTITY_PROVIDERS_INFO,
+            bytes_body,
+            status=200)
+
+    def _test_get_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.get_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_IDENTITY_PROVIDER_INFO,
+            bytes_body,
+            identity_provider_id="FAKE_ID",
+            status=200)
+
+    def _test_delete_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.delete_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            bytes_body,
+            identity_provider_id="FAKE_ID",
+            status=204)
+
+    def _test_update_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.patch',
+            self.FAKE_IDENTITY_PROVIDER_INFO,
+            bytes_body,
+            identity_provider_id="FAKE_ID",
+            status=200)
+
+    def test_register_identity_provider_with_str_body(self):
+        self._test_register_identity_provider()
+
+    def test_register_identity_provider_with_bytes_body(self):
+        self._test_register_identity_provider(bytes_body=True)
+
+    def test_list_identity_providers_with_str_body(self):
+        self._test_list_identity_providers()
+
+    def test_list_identity_providers_with_bytes_body(self):
+        self._test_list_identity_providers(bytes_body=True)
+
+    def test_get_identity_provider_with_str_body(self):
+        self._test_get_identity_provider()
+
+    def test_get_identity_provider_with_bytes_body(self):
+        self._test_get_identity_provider(bytes_body=True)
+
+    def test_delete_identity_provider_with_str_body(self):
+        self._test_delete_identity_provider()
+
+    def test_delete_identity_provider_with_bytes_body(self):
+        self._test_delete_identity_provider(bytes_body=True)
+
+    def test_update_identity_provider_with_str_body(self):
+        self._test_update_identity_provider()
+
+    def test_update_identity_provider_with_bytes_body(self):
+        self._test_update_identity_provider(bytes_body=True)
diff --git a/tempest/tests/lib/services/identity/v3/test_mappings_client.py b/tempest/tests/lib/services/identity/v3/test_mappings_client.py
new file mode 100644
index 0000000..845a3f9
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_mappings_client.py
@@ -0,0 +1,183 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from tempest.lib.services.identity.v3 import mappings_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestMappingsClient(base.BaseServiceTest):
+    FAKE_MAPPING_INFO = {
+        "mapping": {
+            "id": "fake123",
+            "links": {
+                "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                        "mappings/fake123"
+            },
+            "rules": [
+                {
+                    "local": [
+                        {
+                            "user": {
+                                "name": "{0}"
+                            }
+                        },
+                        {
+                            "group": {
+                                "id": "0cd5e9"
+                            }
+                        }
+                    ],
+                    "remote": [
+                        {
+                            "type": "UserName"
+                        },
+                        {
+                            "type": "orgPersonType",
+                            "not_any_of": [
+                                "Contractor",
+                                "Guest"
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    }
+
+    FAKE_MAPPINGS_INFO = {
+        "links": {
+            "next": None,
+            "previous": None,
+            "self": "http://example.com/identity/v3/OS-FEDERATION/mappings"
+        },
+        "mappings": [
+            {
+                "id": "fake123",
+                "links": {
+                    "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                            "mappings/fake123"
+                },
+                "rules": [
+                    {
+                        "local": [
+                            {
+                                "user": {
+                                    "name": "{0}"
+                                }
+                            },
+                            {
+                                "group": {
+                                    "id": "0cd5e9"
+                                }
+                            }
+                        ],
+                        "remote": [
+                            {
+                                "type": "UserName"
+                            },
+                            {
+                                "type": "orgPersonType",
+                                "any_one_of": [
+                                    "Contractor",
+                                    "SubContractor"
+                                ]
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+
+    def setUp(self):
+        super(TestMappingsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = mappings_client.MappingsClient(
+            fake_auth, 'identity', 'regionOne')
+
+    def _test_create_mapping(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.create_mapping,
+            'tempest.lib.common.rest_client.RestClient.put',
+            self.FAKE_MAPPING_INFO,
+            bytes_body,
+            mapping_id="fake123",
+            status=201)
+
+    def _test_get_mapping(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.get_mapping,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_MAPPING_INFO,
+            bytes_body,
+            mapping_id="fake123",
+            status=200)
+
+    def _test_update_mapping(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_mapping,
+            'tempest.lib.common.rest_client.RestClient.patch',
+            self.FAKE_MAPPING_INFO,
+            bytes_body,
+            mapping_id="fake123",
+            status=200)
+
+    def _test_list_mappings(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_mappings,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_MAPPINGS_INFO,
+            bytes_body,
+            status=200)
+
+    def _test_delete_mapping(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.delete_mapping,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            bytes_body,
+            mapping_id="fake123",
+            status=204)
+
+    def test_create_mapping_with_str_body(self):
+        self._test_create_mapping()
+
+    def test_create_mapping_with_bytes_body(self):
+        self._test_create_mapping(bytes_body=True)
+
+    def test_get_mapping_with_str_body(self):
+        self._test_get_mapping()
+
+    def test_get_mapping_with_bytes_body(self):
+        self._test_get_mapping(bytes_body=True)
+
+    def test_update_mapping_with_str_body(self):
+        self._test_update_mapping()
+
+    def test_update_mapping_with_bytes_body(self):
+        self._test_update_mapping(bytes_body=True)
+
+    def test_list_mappings_with_str_body(self):
+        self._test_list_mappings()
+
+    def test_list_mappings_with_bytes_body(self):
+        self._test_list_mappings(bytes_body=True)
+
+    def test_delete_mapping_with_str_body(self):
+        self._test_delete_mapping()
+
+    def test_delete_mapping_with_bytes_body(self):
+        self._test_delete_mapping(bytes_body=True)
diff --git a/tempest/tests/lib/services/identity/v3/test_protocols_client.py b/tempest/tests/lib/services/identity/v3/test_protocols_client.py
new file mode 100644
index 0000000..c1d04f4
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_protocols_client.py
@@ -0,0 +1,140 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from tempest.lib.services.identity.v3 import protocols_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestProtocolsClient(base.BaseServiceTest):
+    FAKE_PROTOCOLS_INFO = {
+        "links": {
+            "next": None,
+            "previous": None,
+            "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                    "identity_providers/FAKE_ID/protocols"
+        },
+        "protocols": [
+            {
+                "id": "fake_id1",
+                "links": {
+                    "identity_provider": "http://example.com/identity/v3/" +
+                                         "OS-FEDERATION/identity_providers/" +
+                                         "FAKE_ID",
+                    "self": "http://example.com/identity/v3/OS-FEDERATION/"
+                            "identity_providers/FAKE_ID/protocols/fake_id1"
+                },
+                "mapping_id": "fake123"
+            }
+        ]
+    }
+
+    FAKE_PROTOCOL_INFO = {
+        "protocol": {
+            "id": "fake_id1",
+            "links": {
+                "identity_provider": "http://example.com/identity/v3/OS-" +
+                                     "FEDERATION/identity_providers/FAKE_ID",
+                "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                        "identity_providers/FAKE_ID/protocols/fake_id1"
+            },
+            "mapping_id": "fake123"
+        }
+    }
+
+    def setUp(self):
+        super(TestProtocolsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = protocols_client.ProtocolsClient(
+            fake_auth, 'identity', 'regionOne')
+
+    def _test_add_protocol_to_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.add_protocol_to_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.put',
+            self.FAKE_PROTOCOL_INFO,
+            bytes_body,
+            idp_id="FAKE_ID",
+            protocol_id="fake_id1",
+            status=201)
+
+    def _test_list_protocols_of_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_protocols_of_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_PROTOCOLS_INFO,
+            bytes_body,
+            idp_id="FAKE_ID",
+            status=200)
+
+    def _test_get_protocol_for_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.get_protocol_for_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_PROTOCOL_INFO,
+            bytes_body,
+            idp_id="FAKE_ID",
+            protocol_id="fake_id1",
+            status=200)
+
+    def _test_update_mapping_for_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_mapping_for_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.patch',
+            self.FAKE_PROTOCOL_INFO,
+            bytes_body,
+            idp_id="FAKE_ID",
+            protocol_id="fake_id1",
+            status=200)
+
+    def _test_delete_protocol_from_identity_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.delete_protocol_from_identity_provider,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            bytes_body,
+            idp_id="FAKE_ID",
+            protocol_id="fake_id1",
+            status=204)
+
+    def test_add_protocol_to_identity_provider_with_str_body(self):
+        self._test_add_protocol_to_identity_provider()
+
+    def test_add_protocol_to_identity_provider_with_bytes_body(self):
+        self._test_add_protocol_to_identity_provider(bytes_body=True)
+
+    def test_list_protocols_of_identity_provider_with_str_body(self):
+        self._test_list_protocols_of_identity_provider()
+
+    def test_list_protocols_of_identity_provider_with_bytes_body(self):
+        self._test_list_protocols_of_identity_provider(bytes_body=True)
+
+    def test_get_protocol_for_identity_provider_with_str_body(self):
+        self._test_get_protocol_for_identity_provider()
+
+    def test_get_protocol_for_identity_provider_with_bytes_body(self):
+        self._test_get_protocol_for_identity_provider(bytes_body=True)
+
+    def test_update_mapping_for_identity_provider_with_str_body(self):
+        self._test_update_mapping_for_identity_provider()
+
+    def test_update_mapping_for_identity_provider_with_bytes_body(self):
+        self._test_update_mapping_for_identity_provider(bytes_body=True)
+
+    def test_delete_protocol_from_identity_provider_with_str_body(self):
+        self._test_delete_protocol_from_identity_provider()
+
+    def test_delete_protocol_from_identity_provider_with_bytes_body(self):
+        self._test_delete_protocol_from_identity_provider(bytes_body=False)
diff --git a/tempest/tests/lib/services/identity/v3/test_service_providers_client.py b/tempest/tests/lib/services/identity/v3/test_service_providers_client.py
new file mode 100644
index 0000000..ec908bc
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_service_providers_client.py
@@ -0,0 +1,157 @@
+# Copyright 2020 Samsung Electronics Co., Ltd
+# All Rights Reserved.
+#
+# 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.
+
+from tempest.lib.services.identity.v3 import service_providers_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestServiceProvidersClient(base.BaseServiceTest):
+    FAKE_SERVICE_PROVIDER_INFO = {
+        "service_provider": {
+            "auth_url": "https://example.com/identity/v3/OS-FEDERATION/" +
+                        "identity_providers/FAKE_ID/protocols/fake_id1/auth",
+            "description": "Fake Service Provider",
+            "enabled": True,
+            "id": "FAKE_ID",
+            "links": {
+                "self": "https://example.com/identity/v3/OS-FEDERATION/" +
+                        "service_providers/FAKE_ID"
+            },
+            "relay_state_prefix": "ss:mem:",
+            "sp_url": "https://example.com/identity/Shibboleth.sso/" +
+                      "FAKE_ID1/ECP"
+        }
+    }
+
+    FAKE_SERVICE_PROVIDERS_INFO = {
+        "links": {
+            "next": None,
+            "previous": None,
+            "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                    "service_providers"
+        },
+        "service_providers": [
+            {
+                "auth_url": "https://example.com/identity/v3/OS-FEDERATION/" +
+                            "identity_providers/acme/protocols/saml2/auth",
+                "description": "Stores ACME identities",
+                "enabled": True,
+                "id": "ACME",
+                "links": {
+                    "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                            "service_providers/ACME"
+                },
+                "relay_state_prefix": "ss:mem:",
+                "sp_url": "https://example.com/identity/Shibboleth.sso/" +
+                          "SAML2/ECP"
+            },
+            {
+                "auth_url": "https://other.example.com/identity/v3/" +
+                            "OS-FEDERATION/identity_providers/acme/" +
+                            "protocols/saml2/auth",
+                "description": "Stores contractor identities",
+                "enabled": False,
+                "id": "ACME-contractors",
+                "links": {
+                    "self": "http://example.com/identity/v3/OS-FEDERATION/" +
+                            "service_providers/ACME-contractors"
+                },
+                "relay_state_prefix": "ss:mem:",
+                "sp_url": "https://other.example.com/identity/Shibboleth" +
+                          ".sso/SAML2/ECP"
+            }
+        ]
+    }
+
+    def setUp(self):
+        super(TestServiceProvidersClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = service_providers_client.ServiceProvidersClient(
+            fake_auth, 'identity', 'regionOne')
+
+    def _test_register_service_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.register_service_provider,
+            'tempest.lib.common.rest_client.RestClient.put',
+            self.FAKE_SERVICE_PROVIDER_INFO,
+            bytes_body,
+            service_provider_id="FAKE_ID",
+            status=201)
+
+    def _test_list_service_providers(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_service_providers,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_SERVICE_PROVIDERS_INFO,
+            bytes_body,
+            status=200)
+
+    def _test_get_service_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.get_service_provider,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_SERVICE_PROVIDER_INFO,
+            bytes_body,
+            service_provider_id="FAKE_ID",
+            status=200)
+
+    def _test_delete_service_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.delete_service_provider,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            bytes_body,
+            service_provider_id="FAKE_ID",
+            status=204)
+
+    def _test_update_service_provider(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_service_provider,
+            'tempest.lib.common.rest_client.RestClient.patch',
+            self.FAKE_SERVICE_PROVIDER_INFO,
+            bytes_body,
+            service_provider_id="FAKE_ID",
+            status=200)
+
+    def test_register_service_provider_with_str_body(self):
+        self._test_register_service_provider()
+
+    def test_register_service_provider_with_bytes_body(self):
+        self._test_register_service_provider(bytes_body=True)
+
+    def test_list_service_providers_with_str_body(self):
+        self._test_list_service_providers()
+
+    def test_list_service_providers_with_bytes_body(self):
+        self._test_list_service_providers(bytes_body=True)
+
+    def test_get_service_provider_with_str_body(self):
+        self._test_get_service_provider()
+
+    def test_get_service_provider_with_bytes_body(self):
+        self._test_get_service_provider(bytes_body=True)
+
+    def test_delete_service_provider_with_str_body(self):
+        self._test_delete_service_provider()
+
+    def test_delete_service_provider_with_bytes_body(self):
+        self._test_delete_service_provider(bytes_body=True)
+
+    def test_update_service_provider_with_str_body(self):
+        self._test_update_service_provider()
+
+    def test_update_service_provider_with_bytes_body(self):
+        self._test_update_service_provider(bytes_body=True)