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"""Test imports can happen from top-level."""
import pytest
import propcache
from propcache import _helpers
def test_api_at_top_level() -> None:
"""Verify the public API is accessible at top-level."""
assert propcache.cached_property is not None
assert propcache.under_cached_property is not None
assert propcache.cached_property is _helpers.cached_property
assert propcache.under_cached_property is _helpers.under_cached_property
@pytest.mark.parametrize(
"prop_name",
("cached_property", "under_cached_property"),
)
def test_public_api_is_discoverable_in_dir(prop_name: str) -> None:
"""Verify the public API is discoverable programmatically."""
assert prop_name in dir(propcache)
def test_importing_invalid_attr_raises() -> None:
"""Verify importing an invalid attribute raises an AttributeError."""
match = r"^module 'propcache' has no attribute 'invalid_attr'$"
with pytest.raises(AttributeError, match=match):
propcache.invalid_attr
def test_import_error_invalid_attr() -> None:
"""Verify importing an invalid attribute raises an ImportError."""
# No match here because the error is raised by the import system
# and may vary between Python versions.
with pytest.raises(ImportError):
from propcache import invalid_attr # noqa: F401
def test_no_wildcard_imports() -> None:
"""Verify wildcard imports are prohibited."""
assert not propcache.__all__
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