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"""Deprecation messages and bits of code used elsewhere in the codebase that
is planned to be removed in the next pytest release.
Keeping it in a central location makes it easy to track what is deprecated and should
be removed when the time comes.
All constants defined in this module should be either instances of
:class:`PytestWarning`, or :class:`UnformattedWarning`
in case of warnings which need to format their messages.
"""
from __future__ import annotations
from warnings import warn
from _pytest.warning_types import PytestDeprecationWarning
from _pytest.warning_types import PytestRemovedIn9Warning
from _pytest.warning_types import UnformattedWarning
# set of plugins which have been integrated into the core; we use this list to ignore
# them during registration to avoid conflicts
DEPRECATED_EXTERNAL_PLUGINS = {
"pytest_catchlog",
"pytest_capturelog",
"pytest_faulthandler",
}
# This can be* removed pytest 8, but it's harmless and common, so no rush to remove.
# * If you're in the future: "could have been".
YIELD_FIXTURE = PytestDeprecationWarning(
"@pytest.yield_fixture is deprecated.\n"
"Use @pytest.fixture instead; they are the same."
)
# This deprecation is never really meant to be removed.
PRIVATE = PytestDeprecationWarning("A private pytest class or function was used.")
HOOK_LEGACY_PATH_ARG = UnformattedWarning(
PytestRemovedIn9Warning,
"The ({pylib_path_arg}: py.path.local) argument is deprecated, please use ({pathlib_path_arg}: pathlib.Path)\n"
"see https://docs.pytest.org/en/latest/deprecations.html"
"#py-path-local-arguments-for-hooks-replaced-with-pathlib-path",
)
NODE_CTOR_FSPATH_ARG = UnformattedWarning(
PytestRemovedIn9Warning,
"The (fspath: py.path.local) argument to {node_type_name} is deprecated. "
"Please use the (path: pathlib.Path) argument instead.\n"
"See https://docs.pytest.org/en/latest/deprecations.html"
"#fspath-argument-for-node-constructors-replaced-with-pathlib-path",
)
HOOK_LEGACY_MARKING = UnformattedWarning(
PytestDeprecationWarning,
"The hook{type} {fullname} uses old-style configuration options (marks or attributes).\n"
"Please use the pytest.hook{type}({hook_opts}) decorator instead\n"
" to configure the hooks.\n"
" See https://docs.pytest.org/en/latest/deprecations.html"
"#configuring-hook-specs-impls-using-markers",
)
MARKED_FIXTURE = PytestRemovedIn9Warning(
"Marks applied to fixtures have no effect\n"
"See docs: https://docs.pytest.org/en/stable/deprecations.html#applying-a-mark-to-a-fixture-function"
)
# You want to make some `__init__` or function "private".
#
# def my_private_function(some, args):
# ...
#
# Do this:
#
# def my_private_function(some, args, *, _ispytest: bool = False):
# check_ispytest(_ispytest)
# ...
#
# Change all internal/allowed calls to
#
# my_private_function(some, args, _ispytest=True)
#
# All other calls will get the default _ispytest=False and trigger
# the warning (possibly error in the future).
def check_ispytest(ispytest: bool) -> None:
if not ispytest:
warn(PRIVATE, stacklevel=3)
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