Viewing file:  context_manager.py (2.03 KB) -rw-r--r--
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from __future__ import annotations
import warnings
import traceback
from types import TracebackType
from typing import Callable, Type
from . import check_log
from .check_log import log_failure
_stop_on_fail = False
# This class has grown into much more than just a context manager.
# it's really the interface into the system.
# TODO: maybe rename it
# TODO: maybe pull in extra functionality here instead of in plugin.py
class CheckContextManager:
def __init__(self) -> None:
self.msg: object = None
def __enter__(self) -> "CheckContextManager":
return self
def __exit__(
self,
exc_type: Type[BaseException] | None,
exc_val: BaseException | None,
exc_tb: TracebackType | None,
) -> bool | None:
__tracebackhide__ = True
if exc_type is not None and issubclass(exc_type, AssertionError):
if _stop_on_fail:
self.msg = None
return None
else:
fmt_tb = traceback.format_exception(exc_type, exc_val, exc_tb)
if self.msg is not None:
log_failure(f"{exc_val}, {self.msg}", tb=fmt_tb)
else:
log_failure(exc_val, tb=fmt_tb)
self.msg = None
return True
self.msg = None
return None
def __call__(self, msg: object = None) -> "CheckContextManager":
self.msg = msg
return self
def set_no_tb(self) -> None:
warnings.warn(
"set_no_tb() is deprecated; use set_max_tb(0)", DeprecationWarning
)
check_log._max_tb = 0
def set_max_fail(self, x: int) -> None:
check_log._max_fail = x
def set_max_report(self, x: int) -> None:
check_log._max_report = x
def set_max_tb(self, x: int) -> None:
check_log._max_tb = x
def call_on_fail(self, func: Callable[[str], None]) -> None:
"""Experimental feature - may change with any release"""
check_log._fail_function = func
check = CheckContextManager()
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