public async Task AddCompleteGet()
        {
            var repo = new OperationRepository();
            var id   = await repo.Add("test", "order", "ETHUSD", "sell");

            Assert.That(id, Is.GreaterThan(0));

            var incomplete = await repo.GetIncomplete("test", "order");

            var one = incomplete.Single();

            Assert.That(one.Misc, Is.EqualTo("sell"));
            Assert.That(one.Id, Is.EqualTo(id));
            Assert.That(one.Pair, Is.EqualTo("ETHUSD"));

            await repo.Complete(id);

            var incomplete1 = await repo.GetIncomplete("test", "order");

            Assert.That(incomplete1.Count, Is.EqualTo(0));
        }