test_smoke.py

"""Environment smoke test — the honest "is Python set up correctly?" check.

These should ALL PASS once `setup.sh` has run. They verify the interpreter,
package imports, config module, and mock data — without needing any API keys.

(Contrast with sample_service/test_app.py, which intentionally FAILS to
demonstrate the planted bug the agent will fix.)

Run:  pytest test_smoke.py
"""

import json
import sys
from pathlib import Path

REPO_ROOT = Path(__file__).resolve().parent


def test_python_version_is_supported():
    assert sys.version_info[:2] >= (3, 11), (
        f"Python 3.11+ required, found {sys.version_info.major}.{sys.version_info.minor}"
    )


def test_third_party_dependencies_import():
    # The runtime deps from requirements.txt must be installed in the venv.
    import anthropic  # noqa: F401
    import dotenv  # noqa: F401
    import requests  # noqa: F401


def test_project_modules_import():
    # Core package modules should import cleanly.
    import agent  # noqa: F401
    from agent import config, models  # noqa: F401

    # Config module exposes the loader and Config type (we don't call it here,
    # so the check passes even before .env keys are filled in).
    assert hasattr(config, "load_config")
    assert hasattr(config, "Config")


def test_sample_service_happy_path():
    # The non-buggy code path works (empty-list path is the planted bug).
    from sample_service.app import calculate_average_order_value

    assert calculate_average_order_value([{"total": 10.0}, {"total": 20.0}]) == 15.0


def test_mock_logs_parse_and_have_errors():
    data = json.loads((REPO_ROOT / "mock_data" / "logs.json").read_text())
    events = data["events"]
    assert isinstance(events, list) and events, "expected a non-empty events list"

    errors = [e for e in events if e["level"] == "ERROR"]
    assert errors, "expected at least one ERROR event for the demo"
    # At least one error should point at a file we can fix.
    assert any(e.get("culprit") for e in errors), "expected an error with a culprit file"