diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/_autospec.py | 64 | ||||
| -rw-r--r-- | tests/helpers.py | 21 |
2 files changed, 66 insertions, 19 deletions
diff --git a/tests/_autospec.py b/tests/_autospec.py new file mode 100644 index 000000000..ee2fc1973 --- /dev/null +++ b/tests/_autospec.py @@ -0,0 +1,64 @@ +import contextlib +import functools +import unittest.mock +from typing import Callable + + [email protected](unittest.mock._patch.decoration_helper) +def _decoration_helper(self, patched, args, keywargs): + """Skips adding patchings as args if their `dont_pass` attribute is True.""" + # Don't ask what this does. It's just a copy from stdlib, but with the dont_pass check added. + extra_args = [] + with contextlib.ExitStack() as exit_stack: + for patching in patched.patchings: + arg = exit_stack.enter_context(patching) + if not getattr(patching, "dont_pass", False): + # Only add the patching as an arg if dont_pass is False. + if patching.attribute_name is not None: + keywargs.update(arg) + elif patching.new is unittest.mock.DEFAULT: + extra_args.append(arg) + + args += tuple(extra_args) + yield args, keywargs + + [email protected](unittest.mock._patch.copy) +def _copy(self): + """Copy the `dont_pass` attribute along with the standard copy operation.""" + patcher_copy = _copy.original(self) + patcher_copy.dont_pass = getattr(self, "dont_pass", False) + return patcher_copy + + +# Monkey-patch the patcher class :) +_copy.original = unittest.mock._patch.copy +unittest.mock._patch.copy = _copy +unittest.mock._patch.decoration_helper = _decoration_helper + + +def autospec(target, *attributes: str, pass_mocks: bool = True, **patch_kwargs) -> Callable: + """ + Patch multiple `attributes` of a `target` with autospecced mocks and `spec_set` as True. + + If `pass_mocks` is True, pass the autospecced mocks as arguments to the decorated object. + """ + # Caller's kwargs should take priority and overwrite the defaults. + kwargs = dict(spec_set=True, autospec=True) + kwargs.update(patch_kwargs) + + # Import the target if it's a string. + # This is to support both object and string targets like patch.multiple. + if type(target) is str: + target = unittest.mock._importer(target) + + def decorator(func): + for attribute in attributes: + patcher = unittest.mock.patch.object(target, attribute, **kwargs) + if not pass_mocks: + # A custom attribute to keep track of which patchings should be skipped. + patcher.dont_pass = True + func = patcher(func) + return func + return decorator diff --git a/tests/helpers.py b/tests/helpers.py index facc4e1af..6cf5d12bd 100644 --- a/tests/helpers.py +++ b/tests/helpers.py @@ -5,7 +5,7 @@ import itertools import logging import unittest.mock from asyncio import AbstractEventLoop -from typing import Callable, Iterable, Optional +from typing import Iterable, Optional import discord from aiohttp import ClientSession @@ -14,6 +14,7 @@ from discord.ext.commands import Context from bot.api import APIClient from bot.async_stats import AsyncStatsClient from bot.bot import Bot +from tests._autospec import autospec # noqa: F401 other modules import it via this module for logger in logging.Logger.manager.loggerDict.values(): @@ -26,24 +27,6 @@ for logger in logging.Logger.manager.loggerDict.values(): logger.setLevel(logging.CRITICAL) -def autospec(target, *attributes: str, **kwargs) -> Callable: - """Patch multiple `attributes` of a `target` with autospecced mocks and `spec_set` as True.""" - # Caller's kwargs should take priority and overwrite the defaults. - kwargs = {'spec_set': True, 'autospec': True, **kwargs} - - # Import the target if it's a string. - # This is to support both object and string targets like patch.multiple. - if type(target) is str: - target = unittest.mock._importer(target) - - def decorator(func): - for attribute in attributes: - patcher = unittest.mock.patch.object(target, attribute, **kwargs) - func = patcher(func) - return func - return decorator - - class HashableMixin(discord.mixins.EqualityComparable): """ Mixin that provides similar hashing and equality functionality as discord.py's `Hashable` mixin. |