def test__fetch_selection_config_validData_fetchesValidVariables():
sel_config = {"method": "roulette", "agents_to_save": 1.0}
config = Config()
config._fetch_selection_config(sel_config)
assert config.selection_method == "roulette" and config.agents_to_save == 1.0
def test__fetch_selection_config_emptyDict_returnsDefaultSettings():
sel_config = {}
config = Config()
config._fetch_selection_config(sel_config)
assert config.selection_method == "roulette" and config.agents_to_save == 0.0
