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import io
import hashlib
import json
import os
from pathlib import Path
import pytest
import ctx.adapters.claude_code.query_handler as handler
from ctx.core.install_policy_store import persist_install_policy
from ctx.engine.installation import InstallConsentPolicy
from ctx.runtime.query_delivery import SensitiveQueryInput
class _Permit:
def emit_once(self, stream: io.BytesIO) -> None:
stream.write(b'{"claude":true}\n')
class _Report:
emission_permit = _Permit()
class _Controller:
def __init__(self) -> None:
self.requests: list[SensitiveQueryInput] = []
def issue(self, request: SensitiveQueryInput) -> _Report:
self.requests.append(request)
return _Report()
def _payload(tmp_path: Path) -> dict[str, object]:
return {
"cwd": str(tmp_path),
"hook_event_name": "UserPromptSubmit",
"permission_mode": "default",
"prompt": "Fix the Python tests",
"session_id": "session-secret",
"transcript_path": str(tmp_path / "transcript.jsonl"),
}
def _stdin(value: object) -> io.BytesIO:
return io.BytesIO(json.dumps(value).encode("utf-8"))
def test_claude_handler_accepts_current_payload_and_uses_project_root(tmp_path: Path) -> None:
project = tmp_path / "project"
project.mkdir()
payload = _payload(tmp_path)
payload["cwd"] = str(project)
controller = _Controller()
output = io.BytesIO()
result = handler.run_hook(
stdin=_stdin(payload),
stdout=output,
environment={"CLAUDE_PROJECT_DIR": str(project)},
controller_factory=lambda _environment: controller,
)
assert result == 0
assert output.getvalue() == b'{"claude":true}\n'
assert len(controller.requests) == 1
request = controller.requests[0]
assert request.native_session_id == "session-secret"
assert request.logical_prompt_id == (
"prompt-" + hashlib.sha256(b"Fix the Python tests").hexdigest()
)
assert request.workspace == project
assert request.prompt == "Fix the Python tests"
def test_claude_same_text_submissions_share_conservative_prompt_identity(
tmp_path: Path,
) -> None:
controller = _Controller()
payload = _payload(tmp_path)
for _ in range(2):
assert (
handler.run_hook(
stdin=_stdin(payload),
stdout=io.BytesIO(),
environment={},
controller_factory=lambda _environment: controller,
)
== 0
)
assert len(controller.requests) == 2
assert controller.requests[0].logical_prompt_id == controller.requests[1].logical_prompt_id
def test_claude_handler_rejects_conflicting_project_and_payload_workspaces(
tmp_path: Path,
) -> None:
project = tmp_path / "project"
project.mkdir()
other = tmp_path / "other"
other.mkdir()
payload = _payload(tmp_path)
payload["cwd"] = str(other)
controller = _Controller()
output = io.BytesIO()
result = handler.run_hook(
stdin=_stdin(payload),
stdout=output,
environment={"CLAUDE_PROJECT_DIR": str(project)},
controller_factory=lambda _environment: controller,
)
assert result == 0
assert output.getvalue() == b""
assert controller.requests == []
def test_claude_handler_ignores_unknown_future_fields(tmp_path: Path) -> None:
payload = _payload(tmp_path)
payload["future_host_field"] = {"ignored": True}
controller = _Controller()
result = handler.run_hook(
stdin=_stdin(payload),
stdout=io.BytesIO(),
environment={},
controller_factory=lambda _environment: controller,
)
assert result == 0
assert len(controller.requests) == 1
@pytest.mark.parametrize(
"mutation",
["malformed-json", "wrong-event", "missing-session-id", "wrong-type", "oversized"],
)
def test_claude_handler_fails_soft_without_calling_engine(
tmp_path: Path,
mutation: str,
) -> None:
payload = _payload(tmp_path)
raw: io.BytesIO
if mutation == "malformed-json":
raw = io.BytesIO(b"{")
elif mutation == "wrong-event":
payload["hook_event_name"] = "PostToolUse"
raw = _stdin(payload)
elif mutation == "missing-session-id":
del payload["session_id"]
raw = _stdin(payload)
elif mutation == "wrong-type":
payload["session_id"] = []
raw = _stdin(payload)
else:
raw = io.BytesIO(b" " * (handler.MAX_STDIN_BYTES + 1))
controller = _Controller()
output = io.BytesIO()
result = handler.run_hook(
stdin=raw,
stdout=output,
environment={},
controller_factory=lambda _environment: controller,
)
assert result == 0
assert output.getvalue() == b""
assert controller.requests == []
def test_claude_handler_activate_uses_the_real_shared_delivery_controller(
tmp_path: Path,
) -> None:
output = io.BytesIO()
state_root = tmp_path / "claude-state"
result = handler.run_hook(
stdin=_stdin(_payload(tmp_path)),
stdout=output,
environment={
"CTX_ENGINE_MODE": "activate",
"CTX_QUERY_DELIVERY_ROOT": str(state_root),
},
controller_factory=handler._open_controller,
)
assert result == 0
assert b"# ctx Python Testing" in output.getvalue()
assert b'"hookEventName":"UserPromptSubmit"' in output.getvalue()
persisted = b"\n".join(path.read_bytes() for path in state_root.rglob("*") if path.is_file())
assert b"# ctx Python Testing" not in persisted
@pytest.mark.skipif(os.name == "nt", reason="managed skill CAS is POSIX-only")
def test_claude_handler_manage_auto_installs_and_loads_relevant_skill(
tmp_path: Path,
) -> None:
output = io.BytesIO()
workspace = tmp_path / "workspace"
workspace.mkdir()
state_root = tmp_path / "claude-state"
policy_root = tmp_path / "onboarding-policy"
persist_install_policy(
InstallConsentPolicy(skill_mode="preapproved-auto"),
policy_root,
)
payload = _payload(workspace)
payload["prompt"] = "repair nested Python context manager state restoration"
result = handler.run_hook(
stdin=_stdin(payload),
stdout=output,
environment={
"CTX_ENGINE_MODE": "manage",
"CTX_INSTALL_POLICY_ROOT": str(policy_root),
"CTX_QUERY_DELIVERY_ROOT": str(state_root),
},
controller_factory=handler._open_controller,
)
assert result == 0
assert b"# ctx Python State and Protocols" in output.getvalue()
assert b'"hookEventName":"UserPromptSubmit"' in output.getvalue()
def test_claude_handler_does_not_treat_experiment_string_as_authority(
tmp_path: Path,
) -> None:
output = io.BytesIO()
state_root = tmp_path / "claude-experiment-state"
result = handler.run_hook(
stdin=_stdin(_payload(tmp_path)),
stdout=output,
environment={
"CTX_ENGINE_MODE": "experiment",
"CTX_QUERY_DELIVERY_ROOT": str(state_root),
},
controller_factory=handler._open_controller,
)
assert result == 0
assert output.getvalue() == b""
assert not state_root.exists()
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