def test_file_destination_io():
"""
"""
param = QgsProcessingParameterFileDestination("FILE", fileFilter="CSV Files (*.csv)")
assert param.defaultFileExtension() == 'csv'
inp = parse_input_definition(param)
inp.data = "foobar"
context = QgsProcessingContext()
value = filesio.get_processing_value( param, [inp], context)
assert value == 'foobar.csv'
