diff --git a/.github/workflows/model-tests.yml b/.github/workflows/model-tests.yml
index bc4bfa9..9d49c51 100644
--- a/.github/workflows/model-tests.yml
+++ b/.github/workflows/model-tests.yml
@@ -23,6 +23,14 @@ on:
         description: 'Extra pytest parameters (e.g. -k testname)'
         required: false
         default: ''
+      oasis_data_manager_branch:
+        description: 'oasis-data-manager git branch to install (leave empty to skip)'
+        required: false
+        default: ''
+      pytest_params:
+        description: 'Extra pytest parameters (e.g. -k testname)'
+        required: false
+        default: ''
 
 jobs:
   run-model-tests:
diff --git a/PiWindAzure/docker-compose.azurite.yml b/PiWindAzure/docker-compose.azurite.yml
new file mode 100644
index 0000000..7669af5
--- /dev/null
+++ b/PiWindAzure/docker-compose.azurite.yml
@@ -0,0 +1,6 @@
+services:
+  azurite:
+    image: mcr.microsoft.com/azure-storage/azurite
+    command: azurite-blob --blobHost 0.0.0.0
+    ports:
+      - "10000"
diff --git a/tests/azurite_setup.py b/tests/azurite_setup.py
new file mode 100644
index 0000000..1b8076f
--- /dev/null
+++ b/tests/azurite_setup.py
@@ -0,0 +1,48 @@
+import os
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).parent.parent
+
+
+def _seed_azurite(conn_str):
+    from azure.storage.blob import BlobServiceClient
+    client = BlobServiceClient.from_connection_string(conn_str)
+    try:
+        client.create_container("data")
+    except Exception:
+        pass
+    for src, prefix in [
+        (REPO_ROOT / "PiWind" / "model_data", "OasisPiWind/model_data/PiWind"),
+        (REPO_ROOT / "PiWind" / "keys_data",  "OasisPiWind/keys_data/PiWind"),
+    ]:
+        for f in Path(src).rglob("*"):
+            if f.is_file():
+                blob = f"{prefix}/{f.relative_to(src)}"
+                client.get_blob_client("data", blob).upload_blob(
+                    f.read_bytes(), overwrite=True
+                )
+
+
+@pytest.fixture(scope="session")
+def azurite_service():
+    from testcontainers.core.container import DockerContainer
+    from testcontainers.core.waiting_utils import wait_for_logs
+
+    with DockerContainer("mcr.microsoft.com/azure-storage/azurite") \
+            .with_command("azurite-blob --blobHost 0.0.0.0") \
+            .with_exposed_ports(10000) as container:
+        wait_for_logs(container, "Azurite Blob service is successfully listening")
+        host = container.get_container_host_ip()
+        port = container.get_exposed_port(10000)
+        conn_str = (
+            f"DefaultEndpointsProtocol=http;"
+            f"AccountName=devstoreaccount1;"
+            f"AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OtO+kSHAHNaIQgFQAAFdtE0jDdqoiQqT6i0xqQpqHfNKOEFAAAABQk=;"
+            f"BlobEndpoint=http://{host}:{port}/devstoreaccount1;"
+        )
+        _seed_azurite(conn_str)
+        os.environ["AZURE_STORAGE_CONNECTION_STRING"] = conn_str
+        yield
+        os.environ.pop("AZURE_STORAGE_CONNECTION_STRING", None)
diff --git a/tests/conftest.py b/tests/conftest.py
index 7a57a2f..c38570e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -3,6 +3,8 @@
 import shutil
 from pathlib import Path
 
+pytest_plugins = ["tests.azurite_setup"]
+
 import pandas as pd
 import pytest
 
diff --git a/tests/test_model_runs.py b/tests/test_model_runs.py
index 673e3f0..5b198eb 100644
--- a/tests/test_model_runs.py
+++ b/tests/test_model_runs.py
@@ -84,7 +84,7 @@ def _build_params():
 
 
 @pytest.mark.parametrize("config_path", _build_params())
-def test_model_run(config_path, tmp_path, check_results, update_results):
+def test_model_run(config_path, tmp_path, check_results, update_results, azurite_service):
     """Run ``oasislmf model run`` for the given config and assert it succeeds."""
     run_dir = tmp_path / "run"
     cmd = [