fix(2): mattermost functional tests share a deterministic admin bootstrap (_mm.bootstrap_admin) — only ONE unauthenticated first-user creation is allowed, so the multi-user test no longer collides with create_message

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/mattermost-lts/functional/test_create_message.py

@@ -19,43 +19,20 @@ import os
 import sys
 import uuid
 
+sys.path.insert(0, os.path.dirname(__file__))
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "..", "runner"))
+import _mm  # noqa: E402
 from harness import http as harness_http  # noqa: E402
 
-# Password must satisfy mattermost's default policy (>=5 chars; use a clearly strong one).
-_ADMIN_PW = "Ccci-Test-Pw-2026!"
-
-
-def _bearer(token: str) -> dict[str, str]:
-    return {"Authorization": f"Bearer {token}"}
-
 
 def test_create_message_roundtrip(live_app):
     base = f"https://{live_app}/api/v4"
     uniq = uuid.uuid4().hex[:10]
 
-    # 1) Bootstrap first user (system admin on a fresh server). username: lowercase alnum.
-    username = f"ccci{uniq}"
-    email = f"{username}@ccci.example.com"
-    status, user = harness_http.http_post(
-        f"{base}/users",
-        data={"email": email, "username": username, "password": _ADMIN_PW},
-        timeout=30,
-    )
-    assert status in (200, 201) and isinstance(user, dict) and user.get("id"), (
-        f"first-user creation failed: HTTP {status}, body={user!r}"
-    )
-
-    # 2) Login → token in the `Token` response header.
-    status, _, hdrs = harness_http.post_with_headers(
-        f"{base}/users/login",
-        data={"login_id": email, "password": _ADMIN_PW},
-        timeout=30,
-    )
-    assert status == 200, f"login failed: HTTP {status}"
-    token = hdrs.get("Token") or hdrs.get("token")
-    assert token, f"login returned no Token header; headers={list(hdrs.keys())}"
-    auth = _bearer(token)
+    # 1-2) Bootstrap the shared system admin (first user on a fresh server, else log in as it).
+    # mattermost allows only ONE unauthenticated first-user creation, and several functional tests
+    # share this deployment — so all bootstrap the same deterministic admin (see _mm.bootstrap_admin).
+    auth = _mm.bearer(_mm.bootstrap_admin(base))
 
     # 3) Create a team, then an open channel in it.
     status, team = harness_http.http_post(