protected override SaveThingyCommand Given()
        {
            _model = null;

            var cmd = Fixture.Create<SaveThingyCommand>();
            return cmd;
        }
        protected override SaveThingyCommand Given()
        {
            _model = Fixture.Create<ThingyCommandDto>();
            _originalModelId = Guid.Empty;
            _model.Id = _originalModelId;

            var cmd = Fixture.Create<SaveThingyCommand>();
            cmd.Context.CreateAndAddThingy().ReturnsForAnyArgs(Fixture.Create<Thingy>());
            cmd.Context.SaveChanges().ReturnsForAnyArgs(1);

            return cmd;
        }
        protected override SaveThingyCommand Given()
        {
            _model = Fixture.Create<ThingyCommandDto>();
            _originalModelId = Guid.Empty;
            _model.Id = _originalModelId;

            var cmd = Fixture.Create<SaveThingyCommand>();

            Context.When(call => call.SaveChangesAsync()).DoNotCallBase();
            Context.SaveChangesAsync().ReturnsForAnyArgs(Task.Run(()=>1));

            return cmd;
        }
        protected override SaveThingyCommand Given()
        {
            _model = Fixture.Create<ThingyCommandDto>();
            _originalModelId = Fixture.Create<Guid>();
            _model.Id = _originalModelId;
            _existingEntity = Fixture.Create<Thingy>();
            _existingEntity.Id = _originalModelId;

            var cmd = Fixture.Create<SaveThingyCommand>();

            Context.Thingys.Add(_existingEntity);

            return cmd;
        }
        protected override SaveThingyCommand Given()
        {
            _model = Fixture.Create<ThingyCommandDto>();
            _originalModelId = Fixture.Create<Guid>();
            _model.Id = _originalModelId;
            _existingEntity = Fixture.Create<Thingy>();
            _existingEntity.Id = _originalModelId;

            var cmd = Fixture.Create<SaveThingyCommand>();

            //IQueryable is not mocked well, so instead use a List
            var existingThingys = Fixture.Create<List<Thingy>>();
            existingThingys.Add(_existingEntity);
            cmd.Context.Thingys = existingThingys.AsQueryable();

            cmd.Context.SaveChanges().ReturnsForAnyArgs(0);

            return cmd;
        }