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import os
import sys
import textwrap
from pathlib import Path
import pytest
from tests.lib import PipTestEnvironment
@pytest.fixture
def warnings_demo(tmpdir: Path) -> Path:
demo = tmpdir.joinpath("warnings_demo.py")
demo.write_text(
textwrap.dedent(
"""
from logging import basicConfig
from pip._internal.utils import deprecation
deprecation.install_warning_logger()
basicConfig()
deprecation.deprecated(reason="deprecated!", replacement=None, gone_in=None)
"""
)
)
return demo
def test_deprecation_warnings_are_correct(
script: PipTestEnvironment, warnings_demo: Path
) -> None:
result = script.run("python", os.fspath(warnings_demo), expect_stderr=True)
expected = "WARNING:pip._internal.deprecations:DEPRECATION: deprecated!\n"
assert result.stderr == expected
def test_deprecation_warnings_can_be_silenced(
script: PipTestEnvironment, warnings_demo: Path
) -> None:
script.environ["PYTHONWARNINGS"] = "ignore"
result = script.run("python", os.fspath(warnings_demo))
assert result.stderr == ""
DEPRECATION_TEXT = "drop support for Python 2.7"
CPYTHON_DEPRECATION_TEXT = "January 1st, 2020"
def test_version_warning_is_not_shown_if_python_version_is_not_2(
script: PipTestEnvironment,
) -> None:
result = script.pip("debug", allow_stderr_warning=True)
assert DEPRECATION_TEXT not in result.stderr, str(result)
assert CPYTHON_DEPRECATION_TEXT not in result.stderr, str(result)
def test_flag_does_nothing_if_python_version_is_not_2(
script: PipTestEnvironment,
) -> None:
script.pip("list", "--no-python-version-warning")
@pytest.mark.skipif(
sys.version_info >= (3, 10), reason="distutils is deprecated in 3.10+"
)
def test_pip_works_with_warnings_as_errors(script: PipTestEnvironment) -> None:
script.environ["PYTHONWARNINGS"] = "error"
script.pip("--version")
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