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from __future__ import annotations
import os
import sys
from pathlib import Path
from typing import Callable, Iterator, Sequence
from unittest.mock import patch
from uuid import uuid4
import pytest
from _pytest.monkeypatch import MonkeyPatch # cannot import from tox.pytest yet
from _pytest.tmpdir import TempPathFactory
from distlib.scripts import ScriptMaker
from pytest_mock import MockerFixture
from virtualenv import cli_run
from tox.config.cli.parser import Parsed
from tox.config.loader.api import Override
from tox.config.main import Config
from tox.config.source import discover_source
from tox.tox_env.python.api import PythonInfo, VersionInfo
from tox.tox_env.python.virtual_env.api import VirtualEnv
pytest_plugins = "tox.pytest"
HERE = Path(__file__).absolute().parent
@pytest.fixture(scope="session")
def value_error() -> Callable[[str], str]:
def _fmt(msg: str) -> str:
return f'ValueError("{msg}"{"," if sys.version_info < (3, 7) else ""})'
return _fmt
if sys.version_info >= (3, 8): # pragma: no cover (py38+)
from typing import Protocol
else: # pragma: no cover (<py38)
from typing_extensions import Protocol
collect_ignore = []
if sys.implementation.name == "pypy":
# time-machine causes segfaults on PyPy
collect_ignore.append("util/test_spinner.py")
class ToxIniCreator(Protocol):
def __call__(self, conf: str, override: Sequence[Override] | None = None) -> Config: # noqa: U100
...
@pytest.fixture()
def tox_ini_conf(tmp_path: Path, monkeypatch: MonkeyPatch) -> ToxIniCreator:
def func(conf: str, override: Sequence[Override] | None = None) -> Config:
dest = tmp_path / "c"
dest.mkdir()
config_file = dest / "tox.ini"
config_file.write_bytes(conf.encode("utf-8"))
with monkeypatch.context() as context:
context.chdir(tmp_path)
source = discover_source(config_file, None)
config = Config.make(
Parsed(work_dir=dest, override=override or [], config_file=config_file, root_dir=None),
pos_args=[],
source=source,
)
return config
return func
@pytest.fixture(scope="session")
def demo_pkg_setuptools() -> Path:
return HERE / "demo_pkg_setuptools"
@pytest.fixture(scope="session")
def demo_pkg_inline() -> Path:
return HERE / "demo_pkg_inline"
@pytest.fixture()
def patch_prev_py(mocker: MockerFixture) -> Callable[[bool], tuple[str, str]]:
def _func(has_prev: bool) -> tuple[str, str]:
ver = sys.version_info[0:2]
prev_ver = "".join(str(i) for i in (ver[0], ver[1] - 1))
prev_py = f"py{prev_ver}"
impl = sys.implementation.name.lower()
def get_python(self: VirtualEnv, base_python: list[str]) -> PythonInfo | None:
if base_python[0] == "py31" or (base_python[0] == prev_py and not has_prev):
return None
raw = list(sys.version_info)
if base_python[0] == prev_py:
raw[1] -= 1 # type: ignore[operator]
ver_info = VersionInfo(*raw) # type: ignore[arg-type]
return PythonInfo(
implementation=impl,
version_info=ver_info,
version="",
is_64=True,
platform=sys.platform,
extra={"executable": Path(sys.executable)},
)
mocker.patch.object(VirtualEnv, "_get_python", get_python)
return prev_ver, impl
return _func
@pytest.fixture(scope="session", autouse=True)
def _do_not_share_virtualenv_for_parallel_runs(tmp_path_factory: TempPathFactory, worker_id: str) -> None:
# virtualenv uses locks to manage access to its cache, when running with xdist this may throw off test timings
if worker_id != "master": # pragma: no branch
temp_app_data = str(tmp_path_factory.mktemp(f"virtualenv-app-{worker_id}")) # pragma: no cover
os.environ["VIRTUALENV_APP_DATA"] = temp_app_data # pragma: no cover
seed_env_folder = str(tmp_path_factory.mktemp(f"seed-cache-{worker_id}")) # pragma: no cover
args = [seed_env_folder, "--without-pip", "--activators", ""] # pragma: no cover
cli_run(args, setup_logging=False) # pragma: no cover
@pytest.fixture(scope="session")
def fake_exe_on_path(tmp_path_factory: TempPathFactory) -> Iterator[Path]:
tmp_path = Path(tmp_path_factory.mktemp("a"))
cmd_name = uuid4().hex
maker = ScriptMaker(None, str(tmp_path))
maker.set_mode = True
maker.variants = {""}
maker.make(f"{cmd_name} = b:c")
with patch.dict(os.environ, {"PATH": f"{tmp_path}{os.pathsep}{os.environ['PATH']}"}):
yield tmp_path / cmd_name
@pytest.fixture(scope="session")
def demo_pkg_inline_wheel(tmp_path_factory: TempPathFactory, demo_pkg_inline: Path) -> Path:
return build_pkg(tmp_path_factory.mktemp("dist"), demo_pkg_inline, ["wheel"])
def build_pkg(dist_dir: Path, of: Path, distributions: list[str], isolation: bool = True) -> Path:
from build.__main__ import build_package
build_package(str(of), str(dist_dir), distributions=distributions, isolation=isolation)
package = next(dist_dir.iterdir())
return package
@pytest.fixture(scope="session")
def pkg_builder() -> Callable[[Path, Path, list[str], bool], Path]:
return build_pkg
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