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from __future__ import annotations
import os
from contextlib import contextmanager
import pytest
from virtualenv.config.cli.parser import VirtualEnvConfigParser, VirtualEnvOptions
from virtualenv.config.ini import IniConfig
from virtualenv.run import session_via_cli
@pytest.fixture()
def gen_parser_no_conf_env(monkeypatch, tmp_path):
keys_to_delete = {key for key in os.environ if key.startswith("VIRTUALENV_")}
for key in keys_to_delete:
monkeypatch.delenv(key)
monkeypatch.setenv(IniConfig.VIRTUALENV_CONFIG_FILE_ENV_VAR, str(tmp_path / "missing"))
@contextmanager
def _build():
parser = VirtualEnvConfigParser()
def _run(*args):
return parser.parse_args(args=args)
yield parser, _run
parser.enable_help()
return _build
def test_flag(gen_parser_no_conf_env):
with gen_parser_no_conf_env() as (parser, run):
parser.add_argument("--clear", dest="clear", action="store_true", help="it", default=False)
result = run()
assert result.clear is False
result = run("--clear")
assert result.clear is True
def test_reset_app_data_does_not_conflict_clear():
options = VirtualEnvOptions()
session_via_cli(["--clear", "venv"], options=options)
assert options.clear is True
assert options.reset_app_data is False
def test_builtin_discovery_class_preferred(mocker):
mocker.patch(
"virtualenv.run.plugin.discovery._get_default_discovery",
return_value=["pluginA", "pluginX", "builtin", "Aplugin", "Xplugin"],
)
options = VirtualEnvOptions()
session_via_cli(["venv"], options=options)
assert options.discovery == "builtin"
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