public void TestRenderSchema(CsvFileLog.ColumnKind column, int columnIndex, int columnCount)
{
string logFile = Path.Combine(Path.GetTempPath(), GetRandomFileName());
// schema:
// <empty>,...,<empty>,<column>,<empty>,...,<empty>
// where
// - <column> is at position 'columnIndex'
// - total number of columns is 'columnCount'
var schema =
Repeat(CsvFileLog.ColumnKind.Empty, columnIndex - 1)
.Concat(new[] { column })
.Concat(Repeat(CsvFileLog.ColumnKind.Empty, columnCount - columnIndex - 1));
using (var log = new CsvFileLog(logFile, schema, serviceName: "CsvFileLogTests"))
{
var actual = RenderMessage(log, TestMessage);
var expected = string.Join(",", schema
.Select(col => RenderColumn(log, col, TestMessage))
.Select(str => '"' + str + '"'));
actual.Should().BeEquivalentTo(expected);
}
IEnumerable <CsvFileLog.ColumnKind> Repeat(CsvFileLog.ColumnKind col, int count)
{
return(Enumerable.Range(0, Math.Max(0, count)).Select(_ => col));
}
}
private string RenderColumn(CsvFileLog log, CsvFileLog.ColumnKind col, string message)
{
return(log.RenderColumn(col, TestTimestamp, TestThreadId, TestSeverity, message));
}
