public void AnnualReportCreatePDFAsync_ReturnsByteArray_Test(int annualReportId)
        {
            _repository.Setup(rep => rep.AnnualReports.GetFirstOrDefaultAsync(It.IsAny <Expression <Func <AnnualReport, bool> > >(),
                                                                              It.IsAny <Func <IQueryable <AnnualReport>, IIncludableQueryable <AnnualReport, object> > >()))
            .ReturnsAsync(AnnualReports.FirstOrDefault(x => x.ID == annualReportId));
            _decisionBlobStorage.Setup(blob => blob.GetBlobBase64Async(It.IsAny <string>())).ReturnsAsync("Blank");

            var actualReturn = _pdfService.AnnualReportCreatePDFAsync(annualReportId);

            _repository.Verify(rep => rep.AnnualReports.GetFirstOrDefaultAsync(It.IsAny <Expression <Func <AnnualReport, bool> > >(),
                                                                               It.IsAny <Func <IQueryable <AnnualReport>, IIncludableQueryable <AnnualReport, object> > >()), Times.Once);
            Assert.IsInstanceOf <byte[]>(actualReturn.Result);
        }