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# Copyright (c) 2023-2024 Arista Networks, Inc.
# Use of this source code is governed by the Apache License 2.0
# that can be found in the LICENSE file.
"""Tests for anta.logger."""
from __future__ import annotations
import logging
from unittest.mock import patch
import pytest
from anta.logger import anta_log_exception, exc_to_str, tb_to_str
@pytest.mark.parametrize(
("exception", "message", "calling_logger", "debug_value", "expected_message"),
[
pytest.param(
ValueError("exception message"),
None,
None,
False,
"ValueError: exception message",
id="exception only",
),
pytest.param(
ValueError("exception message"),
"custom message",
None,
False,
"custom message\nValueError: exception message",
id="custom message",
),
pytest.param(
ValueError("exception message"),
"custom logger",
logging.getLogger("custom"),
False,
"custom logger\nValueError: exception message",
id="custom logger",
),
pytest.param(
ValueError("exception message"),
"Use with custom message",
None,
True,
"Use with custom message\nValueError: exception message",
id="__DEBUG__ on",
),
],
)
def test_anta_log_exception(
caplog: pytest.LogCaptureFixture,
exception: Exception,
message: str | None,
calling_logger: logging.Logger | None,
debug_value: bool,
expected_message: str,
) -> None:
# pylint: disable=too-many-arguments
"""Test anta_log_exception."""
if calling_logger is not None:
# https://github.com/pytest-dev/pytest/issues/3697
calling_logger.propagate = True
caplog.set_level(logging.ERROR, logger=calling_logger.name)
else:
caplog.set_level(logging.ERROR)
# Need to raise to trigger nice stacktrace for __DEBUG__ == True
try:
raise exception
except ValueError as exc:
with patch("anta.logger.__DEBUG__", new=debug_value):
anta_log_exception(exc, message=message, calling_logger=calling_logger)
# Two log captured
if debug_value:
assert len(caplog.record_tuples) == 2
else:
assert len(caplog.record_tuples) == 1
logger, level, message = caplog.record_tuples[0]
if calling_logger is not None:
assert calling_logger.name == logger
else:
assert logger == "anta.logger"
assert level == logging.CRITICAL
assert message == expected_message
# the only place where we can see the stracktrace is in the capture.text
if debug_value:
assert "Traceback" in caplog.text
def my_raising_function(exception: Exception) -> None:
"""Raise Exception."""
raise exception
@pytest.mark.parametrize(
("exception", "expected_output"),
[(ValueError("test"), "ValueError: test"), (ValueError(), "ValueError")],
)
def test_exc_to_str(exception: Exception, expected_output: str) -> None:
"""Test exc_to_str."""
assert exc_to_str(exception) == expected_output
def test_tb_to_str() -> None:
"""Test tb_to_str."""
try:
my_raising_function(ValueError("test"))
except ValueError as exc:
output = tb_to_str(exc)
assert "Traceback" in output
assert 'my_raising_function(ValueError("test"))' in output
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