def test_unhashable(tmp_dir, dvc, mocker, kwargs):
from dvc.stage import Stage, create_stage
from dvc.stage.cache import RunCacheNotFoundError, StageCache
cache = StageCache(dvc)
stage = create_stage(Stage, path="stage.dvc", repo=dvc, **kwargs)
get_stage_hash = mocker.patch("dvc.stage.cache._get_stage_hash")
assert cache.save(stage) is None
assert get_stage_hash.not_called
with pytest.raises(RunCacheNotFoundError):
cache.restore(stage)
assert get_stage_hash.not_called
def test_always_changed(mocker):
from dvc.repo import Repo
from dvc.stage import Stage
from dvc.stage.cache import RunCacheNotFoundError, StageCache
repo = mocker.Mock(spec=Repo)
cache = StageCache(repo)
stage = Stage(repo, always_changed=True)
get_stage_hash = mocker.patch("dvc.stage.cache._get_stage_hash")
assert cache.save(stage) is None
assert get_stage_hash.not_called
with pytest.raises(RunCacheNotFoundError):
cache.restore(stage)
assert get_stage_hash.not_called
