public async Task Should_Serialize_Json_Correctly()
{
ILogger <CsvJsonPrinterService> logger = Substitute.For <ILogger <CsvJsonPrinterService> >();
ICsvPrinterService jsonCsvPrinter = new CsvJsonPrinterService(logger);
IAsyncEnumerable <ParsedCsvRow> parsedRows = GetParsedRow();
using (Stream outputStream = await jsonCsvPrinter.PrintCsvAsync(parsedRows))
{
StreamReader reader = new StreamReader(outputStream);
JsonSerializer jsonSerializer = new JsonSerializer();
ParsedCsvRow deserializedJsonRecords = (ParsedCsvRow)jsonSerializer.Deserialize(reader, typeof(ParsedCsvRow));
await foreach (var row in parsedRows)
{
Assert.Equal(row.LineNumber, row.LineNumber);
Assert.Equal(row.Type, row.Type);
Assert.Equal(row.ConcatAB, row.ConcatAB);
Assert.Equal(row.SumCD, row.SumCD);
Assert.Equal(row.ErrorMessage, row.ErrorMessage);
}
}
}
public async IAsyncEnumerable <ParsedCsvRow> FilterCsvOnSumAsync(IReader csvReader)
{
int rowNumber = 1;
while (await csvReader.ReadAsync())
{
CsvRow record = csvReader.GetRecord <CsvRow>();
if (!int.TryParse(record.ColumnC, out int columnC) ||
!int.TryParse(record.ColumnD, out int columnD))
{
ParsedCsvRow parsedCsvRow = new ParsedCsvRow
{
LineNumber = rowNumber,
Type = Enum.GetName(typeof(ParsingResult), ParsingResult.error),
ErrorMessage = "Error in parsing Columns C & D"
};
yield return(parsedCsvRow);
}
else if (columnC + columnD > 100)
{
ParsedCsvRow parsedCsvRow = new ParsedCsvRow
{
LineNumber = rowNumber,
Type = Enum.GetName(typeof(ParsingResult), ParsingResult.ok),
ConcatAB = record.ColumnA + record.ColumnB,
SumCD = columnC + columnD
};
yield return(parsedCsvRow);
}
rowNumber++;
}
}
