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46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
"""M5 regression — first user becomes admin atomically; concurrent races safe."""
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from __future__ import annotations
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from concurrent.futures import ThreadPoolExecutor
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def test_first_save_user_promotes_to_admin(mu_isolated_root):
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from deeptutor.multi_user.identity import list_user_info, save_user
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save_user("alice", "$2b$12$placeholder", role="user")
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users = {u["username"]: u for u in list_user_info()}
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assert users["alice"]["role"] == "admin"
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def test_second_save_user_keeps_user_role(mu_isolated_root):
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from deeptutor.multi_user.identity import list_user_info, save_user
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save_user("alice", "$2b$12$placeholder", role="user")
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save_user("bob", "$2b$12$placeholder", role="user")
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users = {u["username"]: u for u in list_user_info()}
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assert users["alice"]["role"] == "admin"
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assert users["bob"]["role"] == "user"
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def test_concurrent_first_save_only_one_admin(mu_isolated_root):
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"""``_USERS_WRITE_LOCK`` must serialise read-modify-write so only one
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concurrent first-time registration can flip the empty-store branch."""
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from deeptutor.multi_user.identity import list_user_info, save_user
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def _save(name):
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try:
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save_user(name, "$2b$12$placeholder", role="user")
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return True
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except Exception:
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return False
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names = [f"u{i}" for i in range(8)]
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with ThreadPoolExecutor(max_workers=8) as pool:
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list(pool.map(_save, names))
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users = list_user_info()
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admins = [u for u in users if u["role"] == "admin"]
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assert len(admins) == 1
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assert len(users) == 8
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