def test_materialize_with_out_of_process_executor():
@asset
def asset_foo():
return "foo"
group = AssetGroup(assets=[asset_foo], executor_def=multiprocess_executor)
with pytest.raises(
DagsterUnmetExecutorRequirementsError,
match="'materialize' can only be invoked on AssetGroups which have no executor or have "
"the in_process_executor, but the AssetGroup had executor 'multiprocess'",
):
group.materialize()
def test_materialize_with_selection():
@asset
def start_asset():
return "foo"
@multi_asset(outs={"o1": Out(asset_key=AssetKey("o1")), "o2": Out(asset_key=AssetKey("o2"))})
def middle_asset(start_asset):
return (start_asset, start_asset)
@asset
def follows_o1(o1):
return o1
@asset
def follows_o2(o2):
return o2
_, io_manager_def = asset_aware_io_manager()
group = AssetGroup(
[start_asset, middle_asset, follows_o1, follows_o2],
resource_defs={"io_manager": io_manager_def},
)
result = group.materialize(selection="*follows_o2")
assert result.success
assert result.output_for_node("middle_asset", "o1") == "foo"
assert result.output_for_node("follows_o2") == "foo"
assert result.output_for_node("start_asset") == "foo"
def test_materialize():
@asset
def asset_foo():
return "foo"
group = AssetGroup(assets=[asset_foo])
result = group.materialize()
assert result.success
