Files
fastapi-toolsets/tests/test_logger.py
2026-02-06 13:22:40 +01:00

119 lines
3.2 KiB
Python

import logging
import sys
import pytest
from fastapi_toolsets.logger import (
DEFAULT_FORMAT,
UVICORN_LOGGERS,
configure_logging,
get_logger,
)
@pytest.fixture(autouse=True)
def _reset_loggers():
"""Reset the root and uvicorn loggers after each test."""
yield
root = logging.getLogger()
root.handlers.clear()
root.setLevel(logging.WARNING)
for name in UVICORN_LOGGERS:
uv = logging.getLogger(name)
uv.handlers.clear()
uv.setLevel(logging.NOTSET)
class TestConfigureLogging:
def test_sets_up_handler_and_format(self):
logger = configure_logging()
assert len(logger.handlers) == 1
handler = logger.handlers[0]
assert isinstance(handler, logging.StreamHandler)
assert handler.stream is sys.stdout
assert handler.formatter is not None
assert handler.formatter._fmt == DEFAULT_FORMAT
def test_default_level_is_info(self):
logger = configure_logging()
assert logger.level == logging.INFO
def test_custom_level_string(self):
logger = configure_logging(level="DEBUG")
assert logger.level == logging.DEBUG
def test_custom_level_int(self):
logger = configure_logging(level=logging.WARNING)
assert logger.level == logging.WARNING
def test_custom_format(self):
custom_fmt = "%(levelname)s: %(message)s"
logger = configure_logging(fmt=custom_fmt)
handler = logger.handlers[0]
assert handler.formatter is not None
assert handler.formatter._fmt == custom_fmt
def test_named_logger(self):
logger = configure_logging(logger_name="myapp")
assert logger.name == "myapp"
assert len(logger.handlers) == 1
def test_default_configures_root_logger(self):
logger = configure_logging()
assert logger is logging.getLogger()
def test_idempotent_no_duplicate_handlers(self):
configure_logging()
configure_logging()
logger = configure_logging()
assert len(logger.handlers) == 1
def test_configures_uvicorn_loggers(self):
configure_logging(level="DEBUG")
for name in UVICORN_LOGGERS:
uv_logger = logging.getLogger(name)
assert len(uv_logger.handlers) == 1
assert uv_logger.level == logging.DEBUG
handler = uv_logger.handlers[0]
assert handler.formatter is not None
assert handler.formatter._fmt == DEFAULT_FORMAT
def test_returns_configured_logger(self):
logger = configure_logging(logger_name="test.return")
assert isinstance(logger, logging.Logger)
assert logger.name == "test.return"
class TestGetLogger:
def test_returns_named_logger(self):
logger = get_logger("myapp.services")
assert isinstance(logger, logging.Logger)
assert logger.name == "myapp.services"
def test_returns_root_logger_when_none(self):
logger = get_logger(None)
assert logger is logging.getLogger()
def test_defaults_to_caller_module_name(self):
logger = get_logger()
assert logger.name == __name__
def test_same_name_returns_same_logger(self):
a = get_logger("myapp")
b = get_logger("myapp")
assert a is b