BudgetAnalyser.Engine.Statement.AnzVisaStatementImporterV1.TasteTestAsync C# (CSharp) Метод

        public async Task<bool> TasteTestAsync(string fileName)
        {
            this.importUtilities.AbortIfFileDoesntExist(fileName);
            string[] lines = await ReadFirstTwoLinesAsync(fileName);
            if (lines == null || lines.Length != 2 || lines[0].IsNothing() || lines[1].IsNothing())
            {
                return false;
            }

            try
            {
                if (!VerifyColumnHeaderLine(lines[0])) return false;
                if (!VerifyFirstDataLine(lines[1])) return false;
            }
            catch (Exception)
            {
                return false;
            }

            return true;
        }