def test_without_virtualenv_available(monkeypatch, tmpfolder):
# When virtualenv is not available
venv_mock = Mock()
monkeypatch.setattr(venv, "create_with_stdlib", venv_mock)
venv.run({}, {"project_path": Path(tmpfolder), "venv": ".venv"})
# venv will be called
venv_mock.assert_called_once()
def test_already_exists(monkeypatch, tmpfolder):
virtualenv_mock = Mock()
venv_mock = Mock()
monkeypatch.setattr(venv, "create_with_virtualenv", virtualenv_mock)
monkeypatch.setattr(venv, "create_with_stdlib", venv_mock)
# When the venv directory already exist
(Path(tmpfolder) / ".venv").mkdir()
venv.run({}, {"project_path": Path(tmpfolder), "venv": ".venv"})
# It should skip
virtualenv_mock.assert_not_called()
venv_mock.assert_not_called()
def test_with_none_available(tmpfolder):
# When virtualenv and venv are not available
# then an exception will be raised
with pytest.raises(venv.NotInstalled):
venv.run({}, {"project_path": Path(tmpfolder), "venv": ".venv"})