public async System.Threading.Tasks.Task AnalyseStreamAsyncFile()
{
var stream = FileSystemUtils.OpenRead(UnitTestInitializeCsv.GetTestPath("BasicCSV.txt"));
ICollection <IColumn> determinedColumns;
// Not closing the stream
using (IProcessDisplay process = new CustomProcessDisplay(UnitTestInitializeCsv.Token))
{
using (var impStream = new ImprovedStream(stream))
{
var result = await impStream.GetDetectionResult("stream", process, false, true, true, true, true, true, false);
impStream.Seek(0, System.IO.SeekOrigin.Begin);
using (var reader = new CsvFileReader(impStream, result.CodePageId, result.SkipRows, result.HasFieldHeader,
new ColumnCollection(), TrimmingOption.Unquoted, result.FieldDelimiter, result.FieldQualifier,
result.EscapeCharacter, 0, false, false, result.CommentLine, 0, true, string.Empty, string.Empty,
string.Empty, true, false, true, false, false, false, false, false, false, true, true))
{
await reader.OpenAsync(process.CancellationToken);
var(info, columns) = await reader.FillGuessColumnFormatReaderAsyncReader(new FillGuessSettings(),
new ColumnCollection(), false, true, "null", process.CancellationToken);
determinedColumns = columns.ToList();
Assert.AreEqual(6, determinedColumns.Count(), "Recognized columns");
Assert.AreEqual(6, info.Count, "Information Lines");
}
impStream.Seek(0, SeekOrigin.Begin);
using (var reader = new CsvFileReader(impStream, result.CodePageId, result.SkipRows, result.HasFieldHeader,
determinedColumns, TrimmingOption.Unquoted, result.FieldDelimiter, result.FieldQualifier,
result.EscapeCharacter, 0, false, false, result.CommentLine, 0, true, string.Empty, string.Empty,
string.Empty, true, false, true, false, false, false, false, false, false, true, true))
{
await reader.OpenAsync(process.CancellationToken);
Assert.AreEqual(6, reader.FieldCount);
}
}
}
}
