public async Task And_Exception_Then_Returns_Bad_Request(
            long accountId,
            [Frozen] Mock <IMediator> mockMediator,
            [Greedy] ProjectionsController controller)
        {
            mockMediator
            .Setup(mediator => mediator.Send(
                       It.IsAny <GetAccountProjectionSummaryQuery>(),
                       It.IsAny <CancellationToken>()))
            .Throws <InvalidOperationException>();

            var controllerResult = await controller.GetAccountProjectionSummary(accountId) as BadRequestResult;

            controllerResult.StatusCode.Should().Be((int)HttpStatusCode.BadRequest);
        }
        public async Task Then_Gets_Summary_From_Mediator(
            GetAccountProjectionSummaryQueryResult mediatorResult,
            long accountId,
            [Frozen] Mock <IMediator> mockMediator,
            [Greedy] ProjectionsController controller)
        {
            mockMediator
            .Setup(mediator => mediator.Send(
                       It.IsAny <GetAccountProjectionSummaryQuery>(),
                       It.IsAny <CancellationToken>()))
            .ReturnsAsync(mediatorResult);

            var controllerResult = await controller.GetAccountProjectionSummary(accountId) as ObjectResult;

            Assert.IsNotNull(controllerResult);
            controllerResult.StatusCode.Should().Be((int)HttpStatusCode.OK);
            var model = controllerResult.Value as GetAccountProjectionSummaryResponse;

            Assert.IsNotNull(model);
            model.Should().BeEquivalentTo(mediatorResult);
        }