public async Task <List <FileContent> > GetFileContent(List <string> dealersCsvSource)
        {
            List <FileContent> lstFileContents = new List <FileContent>();

            foreach (var csvSource in dealersCsvSource)
            {
                var source = (CsvSource)Enum.Parse(typeof(CsvSource), csvSource.ToString(), true);
                switch (source)
                {
                case CsvSource.Email:
                {
                    // Process Email content
                    var emailcontent = await _emailProcessor.ProcessEmailContent();

                    lstFileContents.AddRange(emailcontent);
                    break;
                }

                case CsvSource.AzureFile:
                {
                    // Process azure file content.
                    lstFileContents.AddRange(await _azureFileProcessor.ProcessAzureFilesContent());
                    break;
                }
                }
            }
            return(lstFileContents);
        }
        public async Task ProcessEmailContent_Test()
        {
            List <EmailAdditionalContent> sampleEmailAdditionalContents = new List <EmailAdditionalContent>
            {
                new EmailAdditionalContent
                {
                    ContentName   = "Sample.csv",
                    ContentSource = new byte[100]
                }
            };

            List <EmailAdditionalContent> mockEmailAdditionalContents = new List <EmailAdditionalContent>
            {
                new EmailAdditionalContent
                {
                    ContentName   = "Mock.csv",
                    ContentSource = new byte[100]
                }
            };

            IEnumerable <EmailItem> emailItems = new List <EmailItem>
            {
                new EmailItem
                {
                    EmailAdditionalContents = sampleEmailAdditionalContents
                },
                new EmailItem
                {
                    EmailAdditionalContents = mockEmailAdditionalContents
                }
            };

            _mailServiceMock.Setup(m => m.ReadEmails()).Returns(Task.FromResult(emailItems));

            var fileContents = await _emailProcessor.ProcessEmailContent();

            Assert.AreEqual(2, fileContents.Count);
            Assert.AreEqual("Sample.csv", fileContents[0].FileName);
            Assert.AreEqual("Mock.csv", fileContents[1].FileName);
        }