Replaced the UserClient class and the get_user_client function with the get_client function in the tests, for simplicity.

tests/testlib.py

@@ -24,27 +24,14 @@ import httpx
 from flask import Flask
 
 
-class UserClient:
-    """A user client."""
-
-    def __init__(self, client: httpx.Client, csrf_token: str):
-        """Constructs a user client.
-
-        :param client: The client.
-        :param csrf_token: The CSRF token.
-        """
-        self.client: httpx.Client = client
-        self.csrf_token: str = csrf_token
-
-
-def get_user_client(test_case: TestCase, app: Flask, username: str) \
-        -> UserClient:
+def get_client(test_case: TestCase, app: Flask, username: str) \
+        -> tuple[httpx.Client, str]:
     """Returns a user client.
 
     :param test_case: The test case.
     :param app: The Flask application.
     :param username: The username.
-    :return: The user client.
+    :return: A tuple of the client and the CSRF token.
     """
     client: httpx.Client = httpx.Client(app=app, base_url="https://testserver")
     client.headers["Referer"] = "https://testserver"
@@ -54,7 +41,7 @@ def get_user_client(test_case: TestCase, app: Flask, username: str) \
                                                  "username": username})
     test_case.assertEqual(response.status_code, 302)
     test_case.assertEqual(response.headers["Location"], "/")
-    return UserClient(client, csrf_token)
+    return client, csrf_token
 
 
 def get_csrf_token(test_case: TestCase, client: httpx.Client, uri: str) -> str: