public void SaveInvestmentsInCsv()
        {
            var fixture = new Fixture();
            List <Investment> investmentsExpected = fixture.Create <List <Investment> >();
            var filePath = @"InvestmentsFromDb.csv";

            if (File.Exists(filePath))
            {
                File.Delete(filePath);
            }

            var connection = new SqliteConnection("DataSource=:memory:");

            connection.Open();
            try
            {
                var options = new DbContextOptionsBuilder <DatabaseContext>()
                              .UseSqlite(connection)
                              .Options;
                using var context = new DatabaseContext(options);
                context.Database.EnsureCreated();
                _databaseService = new DatabaseService(context);
                _databaseService.SaveInvestments(investmentsExpected);
                var csvService = new CsvService();

                _uploaderService = new UploaderService(csvService, new Aggregator(), _databaseService);

                _uploaderService.UploadInvestmentsFromDbToCsv(filePath);


                var investmentsInCsv = csvService.GetInvestments(filePath);

                investmentsInCsv
                .Select(i => (i.Fund, i.Value, i.Collateral))
                .Should().BeEquivalentTo(investmentsExpected
                                         .Select(i => (i.Fund, i.Value, i.Collateral)));
            }
            finally
            {
                connection.Close();
            }
        }
        public void ReadInvestmentsFromFile()
        {
            var investments = _csvService.GetInvestments(@"Investments.csv");

            investments.Should().NotBeEmpty();
        }