tests/config/test_logging_config.py

"""Tests for config/logging_config.py."""

import json
import logging
from pathlib import Path

from config.logging_config import configure_logging


def test_configure_logging_writes_json_to_file(tmp_path):
    """configure_logging writes JSON lines to the specified file."""
    log_file = str(tmp_path / "test.log")
    configure_logging(log_file, force=True)

    # Emit a log via stdlib (intercepted to loguru)
    logger = logging.getLogger("test.module")
    logger.info("Test message for JSON")

    # Force flush - loguru may buffer
    from loguru import logger as loguru_logger

    loguru_logger.complete()

    content = Path(log_file).read_text(encoding="utf-8")
    lines = [line for line in content.strip().split("\n") if line]
    assert len(lines) >= 1

    # Each line should be valid JSON
    for line in lines:
        record = json.loads(line)
        assert "text" in record or "message" in record or "record" in record


def test_configure_logging_idempotent(tmp_path):
    """configure_logging is idempotent - safe to call twice with force."""
    log_file = str(tmp_path / "test.log")
    configure_logging(log_file, force=True)
    configure_logging(log_file, force=True)  # Should not raise

    logger = logging.getLogger("test.idempotent")
    logger.info("After second configure")


def test_configure_logging_skips_when_already_configured(tmp_path):
    """Without force, second call is a no-op (avoids reconfig on hot reload)."""
    log_file = str(tmp_path / "test.log")
    configure_logging(log_file, force=True)
    # Second call without force - should skip; no exception, log file unchanged
    configure_logging(str(tmp_path / "other.log"), force=False)
    # Logs still go to first file
    logger = logging.getLogger("test.skip")
    logger.info("Still goes to first file")
    from loguru import logger as loguru_logger

    loguru_logger.complete()
    assert (tmp_path / "test.log").exists()
    assert "Still goes to first file" in (tmp_path / "test.log").read_text(
        encoding="utf-8"
    )