def test_get_isin_nach_typ():
depotwerte = Depotwerte()
depotwerte.add('Name_Etf1', 'ISIN_Etf1', depotwerte.TYP_ETF)
depotwerte.add('Name_Etf2', 'ISIN_Etf2', depotwerte.TYP_ETF)
depotwerte.add('Name_Fond', 'ISIN_Fond', depotwerte.TYP_FOND)
result = depotwerte.get_isin_nach_typ()
assert len(result.keys()) == 2
assert result[depotwerte.TYP_ETF] == ['ISIN_Etf1', 'ISIN_Etf2']
assert result[depotwerte.TYP_FOND] == ['ISIN_Fond']
def test_get_isin_nach_typ_with_empty_db_should_return_empty():
depotwerte = Depotwerte()
assert not depotwerte.get_isin_nach_typ()