Files
llm-connect/tests/test_claude_code.py
tegwick 9de0f495db
Some checks failed
CI / test (3.10) (push) Has been cancelled
CI / test (3.11) (push) Has been cancelled
CI / test (3.12) (push) Has been cancelled
Pass --output-format json with --json-schema and unwrap CLI envelope
The Claude Code adapter previously passed --json-schema alone. On Claude
CLI 2.1.160 that combination still emits the model's conversational
preamble on stdout while the schema-enforced structured payload ships on
a sidecar channel the adapter cannot read. Result: callers requesting
structured output got prose that fails JSON parsing downstream — exactly
the failure mode the activity-core CUST-WP-0045 daily triage canary hit
on 2026-06-01 ("Triage report generated and returned via structured
output. Key signals:..." → json.loads error at column 1).

Fix: when --json-schema is set, also pass --output-format json. The CLI
then writes a JSON envelope on stdout. The adapter unwraps it by
probing a small allowlist of known text-bearing fields (result,
result_text, content, text, output). Unknown envelope shapes fall
through to raw stdout so the operator can introspect the structure and
extend the allowlist.

The unwrap path is only triggered when --json-schema was set, so non-
schema callers keep the existing raw-stdout behavior.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-02 10:20:24 +02:00

109 lines
3.6 KiB
Python

from __future__ import annotations
from types import SimpleNamespace
from llm_connect.claude_code import ClaudeCodeAdapter
from llm_connect.config import LLMConfig
from llm_connect.models import RunConfig
def test_execute_prompt_passes_json_schema_to_claude_cli(monkeypatch):
calls: dict[str, object] = {}
def fake_run(cmd, input, capture_output, text, timeout): # noqa: ANN001
calls["cmd"] = cmd
calls["input"] = input
calls["capture_output"] = capture_output
calls["text"] = text
calls["timeout"] = timeout
return SimpleNamespace(
returncode=0,
stdout='{"summary":"ok","recommendations":[]}',
stderr="",
)
monkeypatch.setattr("llm_connect.claude_code.subprocess.run", fake_run)
adapter = ClaudeCodeAdapter(cli_path="/custom/claude")
response = adapter.execute_prompt(
"Produce a report.",
RunConfig(
timeout_seconds=42,
model_params={"json_schema": {"type": "object"}},
),
)
assert calls == {
"cmd": [
"/custom/claude",
"--print",
"--json-schema",
'{"type":"object"}',
"--output-format",
"json",
],
"input": "Produce a report.",
"capture_output": True,
"text": True,
"timeout": 42,
}
# Stdout shape that does not match any known envelope field is returned
# verbatim so the caller can introspect and we can extend the field list.
assert response.content == '{"summary":"ok","recommendations":[]}'
def test_execute_prompt_unwraps_cli_json_envelope_result_field(monkeypatch):
"""With --output-format json the CLI wraps the model payload in an
envelope. The adapter unwraps the textual result so the caller still
sees the model's structured-output JSON, not the envelope."""
def fake_run(cmd, input, capture_output, text, timeout): # noqa: ANN001
envelope = {
"type": "result",
"result": '{"summary":"ok","recommendations":[]}',
"total_cost_usd": 0.001,
}
import json as _json
return SimpleNamespace(
returncode=0,
stdout=_json.dumps(envelope),
stderr="",
)
monkeypatch.setattr("llm_connect.claude_code.subprocess.run", fake_run)
adapter = ClaudeCodeAdapter(cli_path="/custom/claude")
response = adapter.execute_prompt(
"Produce a report.",
RunConfig(model_params={"json_schema": {"type": "object"}}),
)
assert response.content == '{"summary":"ok","recommendations":[]}'
def test_execute_prompt_no_unwrap_without_json_schema(monkeypatch):
"""Without --json-schema we do not pass --output-format json, so the
envelope unwrap path stays inert and raw stdout passes through."""
def fake_run(cmd, input, capture_output, text, timeout): # noqa: ANN001
return SimpleNamespace(
returncode=0,
stdout='{"result":"this is just stdout, not an envelope"}',
stderr="",
)
monkeypatch.setattr("llm_connect.claude_code.subprocess.run", fake_run)
adapter = ClaudeCodeAdapter(cli_path="/custom/claude")
response = adapter.execute_prompt("Plain prompt.", RunConfig())
assert response.content == '{"result":"this is just stdout, not an envelope"}'
def test_claude_code_adapter_prefers_env_cli_path(monkeypatch):
monkeypatch.setenv("LLM_CONNECT_CLAUDE_CLI_PATH", "/home/me/bin/claude")
adapter = ClaudeCodeAdapter(
config=LLMConfig(provider="claude-code", claude_cli_path="claude")
)
assert adapter._cli_path == "/home/me/bin/claude"