def test_exists_false(self):
rep = KassirRepository()
boolean = rep.exists('5bd8ad1daf')
self.assertFalse(boolean)
def test_delete_existed(self):
rep = KassirRepository()
id1 = rep.create('a', 'a', 10)
rep.delete(id1)
self.assertFalse(rep.exists(id1))
def test_exists_true(self):
rep = KassirRepository()
kassir_id = rep.create('a', 'a', 100)
boolean = rep.exists(kassir_id)
self.assertTrue(boolean)
rep.delete(kassir_id)