Added working python generator in tests

pkgs/clan-cli/tests/api.py

@@ -1,9 +1,60 @@
+import sys
+import time
+import urllib.request
+from multiprocessing import Process
+from typing import Generator
+from urllib.error import URLError
+
 import pytest
+import uvicorn
 from fastapi.testclient import TestClient
+from openapi_client import ApiClient, Configuration
 
 from clan_cli.webui.app import app
 
 
 @pytest.fixture(scope="session")
-def api() -> TestClient:
+def test_client() -> TestClient:
     return TestClient(app)
+
+
+def get_health(*, url: str, max_retries: int = 20, delay: float = 0.2) -> str | None:
+    for attempt in range(max_retries):
+        try:
+            with urllib.request.urlopen(url) as response:
+                return response.read()
+        except URLError as e:
+            print(f"Attempt {attempt + 1} failed: {e.reason}", file=sys.stderr)
+            time.sleep(delay)
+    return None
+
+
+# Pytest fixture to run the server in a separate process
+@pytest.fixture(scope="session")
+def server_url() -> Generator[str, None, None]:
+    port = 8000
+    host = "127.0.0.1"
+    proc = Process(
+        target=uvicorn.run,
+        args=(app,),
+        kwargs={"host": host, "port": port, "log_level": "info"},
+        daemon=True,
+    )
+    proc.start()
+
+    url = f"http://{host}:{port}"
+    res = get_health(url=url + "/health")
+    if res is None:
+        raise Exception(f"Couldn't reach {url} after starting server")
+
+    yield url
+    proc.terminate()
+
+
+@pytest.fixture(scope="session")
+def api_client(server_url: str) -> Generator[ApiClient, None, None]:
+    configuration = Configuration(host=server_url)
+
+    # Enter a context with an instance of the API client
+    with ApiClient(configuration) as api_client:
+        yield api_client