def test_get_method_from_plugin_just_attribute():
"""Error if attribute does exists on plugin but is not a method."""
plugin = MockPlugin()
with pytest.raises(
ValueError,
match=r"The plugin '.+?\.MockPlugin' has no method 'format_name'"):
get_method_from_plugin(plugin, "format_name")
def test_get_method_from_plugin_missing_attribute():
"""Error if attribute does not exists on plugin."""
plugin = MockPlugin()
with pytest.raises(
ValueError,
match=
r"The plugin '.+?\.MockPlugin' has no method 'not_even_an_attribute'"
):
get_method_from_plugin(plugin, "not_even_an_attribute")
def test_get_method_from_plugin():
"""Method works like a function."""
plugin = MockPlugin()
method = get_method_from_plugin(plugin, "some_method")
assert method() == "got the method of mock"
def get_project_io_method(format_name: str,
method_name: ProjectIoMethods) -> Callable[..., Any]:
"""Retrieve implementation of project io functionality for the format 'format_name'.
This allows to get the proper help and autocomplete for the function,
which is especially valuable if the function provides additional options.
Parameters
----------
format_name : str
Format the dataloader should be able to read.
method_name : {'load_model', 'write_model', 'load_parameters', 'write_parameters',\
'load_scheme', 'write_scheme', 'load_result', 'write_result'}
Method name, e.g. load_model.
Returns
-------
Callable[..., Any]
The function which is called in the background by the convenience functions.
.. # noqa: DAR103 method_name
"""
io = get_project_io(format_name)
return get_method_from_plugin(io, method_name)
def get_datasaver(format_name: str) -> DataSaver:
"""Retrieve implementation of the ``save_dataset`` functionality for the format 'format_name'.
This allows to get the proper help and autocomplete for the function,
which is especially valuable if the function provides additional options.
Parameters
----------
format_name : str
Format the datawriter should be able to write.
Returns
-------
DataSaver
Function to write :xarraydoc:`Dataset` to the format ``format_name`` .
"""
io = get_data_io(format_name)
return get_method_from_plugin(io, "save_dataset")