def test_set_is_draft_too_late(): """invoice can only be set back to draft on the day it is created.""" InvoiceSettingsFactory() VatSettingsFactory() tr = TimeRecordFactory() InvoiceContactFactory(contact=tr.ticket.contact) TimeRecordFactory(ticket=tr.ticket) invoice = InvoiceCreate().create( tr.user, tr.ticket.contact, date.today() ) invoice.invoice_date=date.today() + relativedelta(days=-1) invoice.save() assert invoice.is_draft is True InvoicePrint().create_pdf(invoice, None) assert invoice.is_draft is False with pytest.raises(InvoiceError) as e: invoice.set_to_draft() assert 'only set an invoice back to draft on the day' in str(e.value)