diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index 32b0d01..87cf8da 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -11,6 +11,15 @@ jobs:
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python }}
+
+    services:
+      mockup:
+        image: dmtf/redfish-mockup-server:latest
+#        volumes:
+#          - ${{ github.workspace }}/tests/data/DSP8010/public-rackmount1:/usr/src/app/public-rackmount1
+        options: --name mockup
+        ports:
+          - 8000:8000
     steps:
     - uses: actions/checkout@master
     - uses: pdm-project/setup-pdm@v4
@@ -41,6 +50,18 @@ jobs:
         wget --directory-prefix=$HOME/www-data https://www.dmtf.org/sites/default/files/standards/documents/DSP8010_2024.1.zip
         wget --directory-prefix=$HOME/www-data https://www.snia.org/sites/default/files/technical-work/swordfish/release/v1.2.6/zip/Swordfish_v1.2.6.zip
         unzip $HOME/www-data/Swordfish_v1.2.6.zip '*_Schema.zip' -d $HOME/www-data/
+
+    - name: service::mock - unzip DSP8010 public-rackmount1
+      run: |
+        mkdir -p -d ${{ github.workspace }}/tests/data/DSP8010/
+        unzip $HOME/www-data/DSP2043_2024.1.zip "public-rackmount1/*" -d ${{ github.workspace }}/tests/data/DSP8010/
+
+    - name: service::mock - restart to feed the volume
+      # https://github.com/orgs/community/discussions/42127#discussioncomment-7591609
+      uses: docker://docker
+      with:
+        args: docker restart mock
+
     - name: Setup description documents
       run: |
         mkdir -p src/aiopenapi3_redfish/description_documents/DSP8010/2024.1/
@@ -52,12 +73,16 @@ jobs:
       run: |
         pdm run pytest --cov=src/aiopenapi3_redfish/ --cov-report=xml:./coverage/reports/coverage-dsp2043.xml       tests/dsp2043_test.py::test_single_{pass,fail}
         pdm run pytest --cov=tests/   --cov-report=xml:./coverage/reports/coverage-dsp2043-tests.xml tests/dsp2043_test.py::test_single_{pass,fail}
+    - name: Generate coverage report (mock)
+      run: |
+        pdm run pytest --cov=src/aiopenapi3_redfish/ --cov-report=xml:./coverage/reports/coverage-mock.xml       tests/mock_test.py::test_iter
+        pdm run pytest --cov=tests/   --cov-report=xml:./coverage/reports/coverage-mock-tests.xml tests/dsp2043_test.py::test_iter
     - name: Upload coverage to Codecov (core)
       uses: codecov/codecov-action@v4
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         directory: ./coverage/reports/
-        files: coverage-dsp2043.xml
+        files: coverage-dsp2043.xml,coverage-mock.xml
         env_vars: OS,PYTHON
         fail_ci_if_error: false
         flags: core
@@ -68,7 +93,7 @@ jobs:
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         directory: ./coverage/reports/
-        files: coverage-description_documents-tests.xml,coverage-dsp2043-tests.xml
+        files: coverage-description_documents-tests.xml,coverage-dsp2043-tests.xml,coverage-mock-tests.xml
         env_vars: OS,PYTHON
         fail_ci_if_error: false
         flags: tests
diff --git a/tests/mock_test.py b/tests/mock_test.py
new file mode 100644
index 0000000..16d8add
--- /dev/null
+++ b/tests/mock_test.py
@@ -0,0 +1,261 @@
+import string
+from pathlib import Path
+import random
+from pathlib import Path
+
+
+import aiopenapi3
+import httpx
+
+import pytest
+import pytest_asyncio
+
+from aiopenapi3.extra import Reduce, Cull
+from aiopenapi3.loader import RedirectLoader
+import aiopenapi3.plugin
+
+from aiopenapi3_redfish.client import Config, AsyncClient
+from aiopenapi3_redfish.errors import RedfishException
+from aiopenapi3_redfish.clinic import (
+    RedfishDocument,
+    PayloadAnnotations,
+    ExposeResponseHeaders,
+    NullableRefs,
+)
+import pytest
+import pytest_asyncio
+
+import yarl
+from .dell_test import description_documents, target, log, config
+
+import aiopenapi3_redfish
+from aiopenapi3_redfish.errors import RedfishException
+
+
+class MockDocument(aiopenapi3.plugin.Document):
+    def __init__(self, url):
+        self._url = url
+        super().__init__()
+
+    def parsed(self, ctx: aiopenapi3.plugin.Document.Context) -> aiopenapi3.plugin.Document.Context:
+        if Path(ctx.url.path).name == "openapi.yaml":
+            ctx.document["paths"]["/redfish/v1/SessionService/Sessions"]["post"]["security"] = []
+        return ctx
+
+
+class MockMessage(aiopenapi3_redfish.clinic.Message):
+    @aiopenapi3_redfish.clinic.Parsed("/redfish/v1", method=["get"])
+    def dr_ServiceRoot(self, ctx: "aiopenapi3.plugin.Message.Context"):
+        ctx.parsed["Links"] = {"Sessions": {"@odata.id": "/redfish/v1/SessionService/Sessions"}}
+        return ctx
+
+    @aiopenapi3_redfish.clinic.Parsed("/redfish/v1/SessionService", method=["get"])
+    def dr_SessionService(self, ctx: "aiopenapi3.plugin.Message.Context"):
+        ctx.parsed["Id"] = "SessionService._.SessionService"
+
+    @aiopenapi3_redfish.clinic.Parsed(
+        "/redfish/v1/Systems/{ComputerSystemId}/LogServices/{LogServiceId}/Entries", method=["get"]
+    )
+    @aiopenapi3_redfish.clinic.Parsed(
+        "/redfish/v1/Managers/{ManagerId}/LogServices/{LogServiceId}/Entries", method=["get"]
+    )
+    def dr_LogServiceEntries(self, ctx: "aiopenapi3.plugin.Message.Context"):
+        ctx.parsed["Members"] = [{"@odata.id": i["@odata.id"]} for i in ctx.parsed["Members"]]
+
+
+@pytest.fixture
+def auth():
+    return ("root", "123")
+
+
+@pytest_asyncio.fixture
+async def client_(description_documents, target, auth, log):
+    username, password = auth
+    config = Config(
+        target=(t := target),
+        username=username,
+        password=password,
+        plugins=[
+            RedfishDocument(t),
+            PayloadAnnotations(),
+            NullableRefs(),
+            ExposeResponseHeaders(),
+            MockDocument(target),
+            MockMessage(),
+        ],
+        locations=[
+            RedirectLoader(v := description_documents / "DMTF-DSP8010" / "2023.3"),
+            RedirectLoader(v / "OpenAPI"),
+            RedirectLoader(description_documents / "swordfish-v1.2.6"),
+        ],
+        cache=Path("/tmp/test_new.pickle"),
+    )
+    api = AsyncClient.createAPI(config)
+    client = AsyncClient(config, api)
+    return client
+
+
+@pytest_asyncio.fixture
+async def client(client_, auth):
+    def non_validating_https(*args, **kwargs) -> httpx.AsyncClient:
+        timeout = httpx.Timeout(timeout=60)
+        return httpx.AsyncClient(*args, verify=False, timeout=timeout, **kwargs, follow_redirects=True)
+
+    api = client_.api.clone(url := yarl.URL("http://localhost:8000/redfish/v1/openapi.yaml"))
+    api._session_factory = non_validating_https
+
+    api.authenticate(None, basicAuth=(auth[0], auth[1]))
+    config = aiopenapi3_redfish.Config(target=url, username=auth[0], password=auth[1])
+    c = aiopenapi3_redfish.client.AsyncClient(config, api)
+
+    from aiopenapi3_redfish.oem import Mapping, Oem
+    from aiopenapi3_redfish.entities import Defaults
+
+    c._mapping = Mapping(oem=Oem(), defaults=Defaults())
+
+    await c.asyncInit()
+    return c
+
+
+@pytest.mark.asyncio
+async def test_SessionService_Sessions_post(client, auth):
+    data = {"UserName": auth[0], "Password": auth[1]}
+    req = client.api._[("/redfish/v1/SessionService/Sessions", "post")]
+    headers, value = await req(data=data, return_headers=True)
+
+
+@pytest.mark.asyncio
+async def test_SessionService_Sessions_get(client, auth):
+    r = await client.SessionService.Sessions.index("1")
+
+
+@pytest.mark.asyncio
+async def test_SessionService_Sessions_list(client, auth):
+    await client.SessionService.Sessions.refresh()
+    async for _ in client.SessionService.Sessions.list():
+        continue
+
+
+@pytest.mark.xfail
+@pytest.mark.asyncio
+async def test_TaskManager(client):
+    async for i in client.TaskService.Tasks.list():
+        print(i)
+
+
+@pytest.mark.asyncio
+async def test_Accounts(client, capsys):
+    async for account in client.AccountService.Accounts.list():
+        if account.Enabled == False:
+            continue
+        if account.UserName == "Administrator":
+            break
+    else:
+        raise KeyError(account)
+
+    r = await account.setPassword(account._client.api._security["basicAuth"][1])
+    assert r
+
+    r = await client.AccountService.Accounts.index(4)
+    #    assert r.Enabled is False
+    v = await r.patch(
+        {
+            "Enabled": not r.Enabled,
+            "UserName": "debug",
+            "Password": "".join(random.choice(string.ascii_letters + string.digits) for _ in range(16)),
+        }
+    )
+    assert v.Enabled != r.Enabled
+
+    await r.patch({"Enabled": False})
+
+
+@pytest.mark.asyncio
+async def test_Inventory(client, capsys):
+    chassis = await client.Chassis.index("1U")
+    async for iface in chassis.NetworkAdapters.list():
+        print(f"{iface.Manufacturer}/{iface.Model}")
+        async for port in iface.NetworkPorts.list():
+            print(f"\t{port.Id} {port.AssociatedNetworkAddresses} {port.LinkStatus=}")
+
+
+@pytest.mark.asyncio
+async def test_iter(client, capsys):
+    pages = {yarl.URL("/redfish/v1")}
+    todo = set()
+
+    from typing import Any
+    import pydantic
+
+    def _find_links(data: pydantic.BaseModel | list[Any] | dict[str, Any]) -> set[str]:
+        links = set()
+        if isinstance(data, pydantic.BaseModel) and (v := getattr(data, "odata_id_", None)) is not None:
+            links.add(v)
+        elif isinstance(data, dict) and (v := data.get("@odata.id", None)) is not None:
+            links.add(v)
+
+        if isinstance(data, pydantic.BaseModel):
+            for k in sorted(data.model_fields_set):
+                v = getattr(data, k)
+                if v is None or isinstance(v, (str, int)):
+                    continue
+                links.update(_find_links(v))
+        elif isinstance(data, dict):
+            for v in data.values():
+                if v is None or isinstance(v, (str, int)):
+                    continue
+                links.update(_find_links(v))
+        elif isinstance(data, list):
+            for v in data:
+                if v is None or isinstance(v, (str, int)):
+                    continue
+                links.update(_find_links(v))
+        elif isinstance(data, (str, int)):
+            pass
+        else:
+            pass
+        return links
+
+    # import collections
+    # Page = collections.namedtuple("Page", field_names=["routepath", "parameters", "data", "response"])
+
+    class RoutingError(Exception):
+        pass
+
+    async def get(t):
+        try:
+            p, routepath = client.routeOf(yarl.URL(t))
+        except KeyError as e:
+            raise RoutingError(t) from e
+        req = client.api._[(routepath, "get")]
+
+        r = await req.request(parameters=p, data=None, context=None)
+        return r
+
+    async def visit(t) -> pydantic.BaseModel | list[Any] | dict[str, Any]:
+        try:
+            r = await get(t)
+            return r.data
+        except aiopenapi3.errors.ResponseSchemaError as rse:
+            print(f"{rse.__class__.__name__} {t} {rse}")
+            return rse.response.json()
+        except aiopenapi3.errors.ResponseError as rer:
+            print(f"{rer.__class__.__name__} {t} {rer}")
+        except RoutingError as ror:
+            print(f"{ror.__class__.__name__} {t} {ror}")
+        except KeyError as ke:
+            print(f"{ke.__class__.__name__} {t} {ke}")
+            return list()
+
+    todo |= _find_links(client._serviceroot._v) - pages
+
+    while todo:
+        c = todo.pop()
+        if (nf := (yarl.URL(c).with_fragment(None) / "")) in pages:
+            continue
+
+        r = await visit(c)
+        if r:
+            todo |= _find_links(r) - pages - frozenset([nf])
+
+        pages.add(nf)