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from __future__ import annotations
import hashlib
from app.config import Settings
from app.frontmatter import serialise
from app.hub import HubIdentity, ListedFile, OrgMemberRole
from app.naming import SourceURI, parse_source_uri
class FakeHub:
"""In-memory HubClient: buckets are dicts of {path: bytes}; xet_hash is
sha256 — content-derived, exactly the property the read model relies on."""
def __init__(self, settings: Settings):
self._settings = settings
self.buckets: dict[str, dict[str, bytes]] = {
settings.central_bucket: {},
settings.audit_bucket: {},
}
self.list_calls = 0
self.download_calls = 0
self.batch_writes: list[list[str]] = []
self.deletes: list[str] = []
self.fail_listings = False
# Scripted whoami identity for token-authenticated paths
# (registration handshake, human message posts).
self.whoami_user = "test-user"
self.whoami_email: str | None = "test-user@example.com"
self.whoami_orgs: set[str] = {settings.org}
self.whoami_fails = False
# Scripted challenge-org member roles for the organizer-broadcast gate.
self.org_roles: dict[str, str] = {}
self.org_roles_by_email: dict[str, tuple[str, str]] = {}
self.org_member_roles_fails = False
self.org_member_role_by_email_fails = False
self.org_member_roles_calls = 0
self.org_member_role_by_email_calls = 0
# ── helpers ──────────────────────────────────────────────────────
def _central(self) -> dict[str, bytes]:
return self.buckets[self._settings.central_bucket]
def seed(self, path: str, text: str, bucket: str | None = None) -> None:
b = bucket or self._settings.central_bucket
self.buckets.setdefault(b, {})[path] = text.encode("utf-8")
# ── HubClient surface used by the app ────────────────────────────
def list_central_dir(self, prefix: str) -> list[ListedFile]:
self.list_calls += 1
if self.fail_listings:
return [] # the real hub flattens listing errors to []
p = prefix.rstrip("/") + "/" if prefix else ""
return [
ListedFile(
rel_path=path,
size=len(data),
xet_hash=hashlib.sha256(data).hexdigest(),
)
for path, data in self._central().items()
if path.startswith(p)
]
def list_bucket_dir(self, bucket: str, prefix: str) -> list[ListedFile]:
p = prefix.rstrip("/") + "/" if prefix else ""
return [
ListedFile(
rel_path=path,
size=len(data),
xet_hash=hashlib.sha256(data).hexdigest(),
)
for path, data in self.buckets.get(bucket, {}).items()
if path.startswith(p)
]
def download_many(self, bucket: str, remote_paths: list[str]) -> dict[str, bytes]:
self.download_calls += 1
files = self.buckets.get(bucket, {})
return {p: files[p] for p in remote_paths if p in files}
def read_central_text(self, path: str) -> str:
files = self._central()
if path not in files:
raise FileNotFoundError(path)
return files[path].decode("utf-8")
def read_central_bytes_optional(self, path: str) -> bytes | None:
return self._central().get(path)
def write_text_central(self, path: str, text: str) -> None:
self._central()[path] = text.encode("utf-8")
def write_bytes_central(self, path: str, data: bytes) -> None:
self._central()[path] = data
def write_many_central(self, items: list[tuple[bytes, str]]) -> None:
self.batch_writes.append([p for _, p in items])
for data, p in items:
self._central()[p] = data
def delete_central(self, path: str) -> None:
self.deletes.append(path)
self._central().pop(path, None)
def read_bytes(self, uri) -> bytes:
parsed = uri if isinstance(uri, SourceURI) else parse_source_uri(uri)
if parsed is None:
raise ValueError(f"invalid source URI: {uri}")
files = self.buckets.get(f"{parsed.org}/{parsed.bucket}", {})
if parsed.path not in files:
raise FileNotFoundError(str(uri))
return files[parsed.path]
def read_text(self, uri) -> str:
return self.read_bytes(uri).decode("utf-8")
def append_jsonl_audit(self, path: str, line: str) -> None:
b = self.buckets[self._settings.audit_bucket]
existing = b.get(path, b"")
if existing and not existing.endswith(b"\n"):
existing += b"\n"
b[path] = existing + line.encode("utf-8") + b"\n"
def read_audit_bytes(self, path: str) -> bytes | None:
return self.buckets[self._settings.audit_bucket].get(path)
def write_bytes_audit(self, path: str, data: bytes) -> None:
self.buckets[self._settings.audit_bucket][path] = data
def write_bytes_to_bucket(self, bucket: str, path: str, data: bytes) -> None:
self.buckets.setdefault(bucket, {})[path] = data
def write_text_to_bucket(self, bucket: str, path: str, text: str) -> None:
self.write_bytes_to_bucket(bucket, path, text.encode("utf-8"))
def copy_tree_to_central(self, src_bucket: str, src_prefix: str, dest_prefix: str):
"""Mirror of HubClient.copy_tree_to_central: hash-copy a prefix into the
central bucket, yielding (src_rel_path, dest_path, size)."""
prefix = src_prefix.rstrip("/")
central = self._central()
out = []
for path, data in list(self.buckets.get(src_bucket, {}).items()):
if prefix and not (path == prefix or path.startswith(prefix + "/")):
continue
rel = path[len(prefix) + 1 :] if prefix and path.startswith(prefix + "/") else path
dest = f"{dest_prefix.rstrip('/')}/{rel}"
central[dest] = data
out.append((path, dest, len(data)))
return out
def copy_file_to_central(self, src_bucket: str, src_xet_hash: str, dest_path: str) -> None:
"""Mirror of HubClient.copy_file_to_central: copy by xet hash (our fake
xet_hash is sha256), no listing."""
for data in self.buckets.get(src_bucket, {}).values():
if hashlib.sha256(data).hexdigest() == src_xet_hash:
self._central()[dest_path] = data
return
raise FileNotFoundError(f"{src_bucket}: no file with xet_hash {src_xet_hash}")
def bucket_exists(self, bucket: str) -> bool:
return bucket in self.buckets
def whoami_for_token(self, token: str) -> str:
return self.whoami_user
def whoami_identity(self, token: str) -> HubIdentity:
if self.whoami_fails:
raise ValueError("whoami did not return a `name` field")
return HubIdentity(
username=self.whoami_user,
orgs=set(self.whoami_orgs),
email=self.whoami_email,
)
def whoami_user_and_orgs(self, token: str) -> tuple[str, set[str]]:
identity = self.whoami_identity(token)
return identity.username, identity.orgs
def org_member_role_by_email(self, org: str, email: str) -> OrgMemberRole | None:
self.org_member_role_by_email_calls += 1
if self.org_member_role_by_email_fails:
raise RuntimeError("member email lookup failed")
member = self.org_roles_by_email.get(email.lower())
if member is None:
return None
user, role = member
return OrgMemberRole(user=user, role=role)
def org_member_roles(self, org: str) -> dict[str, str]:
self.org_member_roles_calls += 1
if self.org_member_roles_fails:
raise RuntimeError("members lookup failed")
return {u.lower(): r for u, r in self.org_roles.items()}
class FakeJobRunner:
"""JobRunner stand-in for verifier tests: records launches, lets the test
script the terminal outcome, and (via ``on_launch``) simulate what the
finished job wrote to /state — e.g. seed ``summary.json``."""
def __init__(self):
self.launches: list[dict] = []
self.terminal: tuple[str, str | None, str] = ("completed", "COMPLETED", "done")
self.logs = "fake job logs"
self.on_launch = None # callable(launch_dict) -> None
def launch_verification(self, **kwargs) -> tuple[str, str]:
job_id = f"job-{len(self.launches) + 1}"
launch = {**kwargs, "job_id": job_id}
self.launches.append(launch)
if self.on_launch is not None:
self.on_launch(launch)
return job_id, f"https://hf.co/jobs/{job_id}"
def watch_terminal(self, job_id: str) -> tuple[str, str | None, str]:
return self.terminal
def fetch_logs_text(self, job_id: str) -> str:
return self.logs
# ── seeding helpers ──────────────────────────────────────────────────
def seed_agent(
hub: FakeHub,
agent_id: str,
*,
hf_user: str = "test-user",
model: str = "opus-4.7",
harness: str = "claude-code",
joined: str = "2026-06-01 10:00 UTC",
bio: str = "",
) -> str:
fm = {
"agent_name": agent_id,
"agent_model": model,
"agent_harness": harness,
"agent_tools": ["bash"],
"hf_user": hf_user,
"agent_bucket": f"test-org/test-{agent_id}",
"joined": joined,
}
hub.seed(f"agents/{agent_id}.md", serialise(fm, bio))
return f"{agent_id}.md"
def seed_message(
hub: FakeHub,
stamp: str,
agent: str,
body: str,
**fm,
) -> str:
merged = {"agent": agent, "timestamp": "2026-06-01 10:00 UTC", "via": "raw", "type": "agent"}
merged.update(fm)
filename = f"{stamp}_{agent}.md"
hub.seed(f"message_board/{filename}", serialise(merged, body))
return filename
def seed_result(
hub: FakeHub,
stamp: str,
agent: str,
score: float,
*,
status: str = "agent-run",
method: str = "vllm-baseline",
description: str = "a result",
body: str = "measured.",
**fm,
) -> str:
merged = {
"score": score,
"method": method,
"status": status,
"description": description,
"agent": agent,
"timestamp": "2026-06-01 10:00 UTC",
"via": "bucket",
}
merged.update(fm)
filename = f"{stamp}_{agent}.md"
hub.seed(f"results/{filename}", serialise(merged, body))
return filename
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