def test__update_env_no_default_no_value(monkeypatch: MonkeyPatch) -> None:
"""Make sure empty value does not touch environment."""
monkeypatch.setenv("DUMMY_VAR", "a:b")
prerun._update_env("DUMMY_VAR", [])
assert os.environ["DUMMY_VAR"] == "a:b"
def test__update_env_no_old_value_no_value(monkeypatch: MonkeyPatch) -> None:
"""Make sure empty value does not touch environment."""
monkeypatch.delenv("DUMMY_VAR", raising=False)
prerun._update_env("DUMMY_VAR", [], "a:b")
assert "DUMMY_VAR" not in os.environ
def test__update_env_no_old_value(monkeypatch: MonkeyPatch, default: str,
value: List[str], result: str) -> None:
"""Values are appended to default value."""
monkeypatch.delenv("DUMMY_VAR", raising=False)
prerun._update_env("DUMMY_VAR", value, default)
assert os.environ["DUMMY_VAR"] == result
def test__update_env_no_default(monkeypatch: MonkeyPatch, old_value: str,
value: List[str], result: str) -> None:
"""Values are appended to preexisting value."""
monkeypatch.setenv("DUMMY_VAR", old_value)
prerun._update_env("DUMMY_VAR", value)
assert os.environ["DUMMY_VAR"] == result
def test__update_env_no_old_value_no_default(monkeypatch: MonkeyPatch,
value: List[str],
result: str) -> None:
"""Values are concatenated using : as the separator."""
monkeypatch.delenv("DUMMY_VAR", raising=False)
prerun._update_env("DUMMY_VAR", value)
assert os.environ["DUMMY_VAR"] == result
def test__update_env(
monkeypatch: MonkeyPatch,
old_value: str,
default: str,
value: List[str],
result: str,
) -> None:
"""Defaults are ignored when preexisting value is present."""
monkeypatch.setenv("DUMMY_VAR", old_value)
prerun._update_env("DUMMY_VAR", value)
assert os.environ["DUMMY_VAR"] == result