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from __future__ import annotations
from pathlib import Path
from subprocess import CompletedProcess # noqa: S404
from typing import TYPE_CHECKING
import pytest
from pipdeptree._detect_env import detect_active_interpreter
if TYPE_CHECKING:
from pytest_mock import MockFixture
@pytest.mark.parametrize(("env_var"), ["VIRTUAL_ENV", "CONDA_PREFIX"])
def test_detect_active_interpreter_using_env_vars(tmp_path: Path, mocker: MockFixture, env_var: str) -> None:
mocker.patch("pipdeptree._detect_env.os.environ", {env_var: str(tmp_path)})
mocker.patch("pipdeptree._detect_env.Path.exists", return_value=True)
actual_path = detect_active_interpreter()
assert actual_path.startswith(str(tmp_path))
def test_detect_active_interpreter_poetry(tmp_path: Path, mocker: MockFixture) -> None:
faked_result = CompletedProcess("", 0, stdout=str(tmp_path))
mocker.patch("pipdeptree._detect_env.subprocess.run", return_value=faked_result)
mocker.patch("pipdeptree._detect_env.os.environ", {})
actual_path = detect_active_interpreter()
assert str(tmp_path) == actual_path
def test_detect_active_interpreter_non_supported_python_implementation(
tmp_path: Path,
mocker: MockFixture,
) -> None:
mocker.patch("pipdeptree._detect_env.os.environ", {"VIRTUAL_ENV": str(tmp_path)})
mocker.patch("pipdeptree._detect_env.Path.exists", return_value=True)
mocker.patch("pipdeptree._detect_env.platform.python_implementation", return_value="NotSupportedPythonImpl")
with pytest.raises(SystemExit):
detect_active_interpreter()
def test_detect_active_interpreter_non_existent_path(
mocker: MockFixture,
) -> None:
fake_path = str(Path(*("i", "dont", "exist")))
mocker.patch("pipdeptree._detect_env.os.environ", {"VIRTUAL_ENV": fake_path})
with pytest.raises(SystemExit):
detect_active_interpreter()
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