private static Dictionary <int, CompetitionRunResult> ImportRunResultsFrom(string path)
{
DateTime currentTimeUtc = SystemContext.UtcNow();
var imported = new Dictionary <int, CompetitionRunResult>();
using var textReader = new StreamReader(path);
var settings = new DelimitedValuesReaderSettings
{
Culture = Settings.Default.ImportExportCulture
};
using var valuesReader = new DelimitedValuesReader(textReader, settings);
AssertRequiredColumnsExist(valuesReader);
bool hasOptionalColumns = ContainsOptionalColumnNames(valuesReader);
foreach (IDelimitedValuesReaderRow row in valuesReader)
{
try
{
CompetitionRunResult runResult = GetRunResultFrom(row, hasOptionalColumns, currentTimeUtc);
imported[runResult.Competitor.Number] = runResult;
}
catch (Exception ex)
{
throw new Exception($"Failed to read import file at row {valuesReader.LineNumber}: {ex.Message}", ex);
}
}
return(imported);
}
private static void AssertRequiredColumnsExist(DelimitedValuesReader reader)
{
List <string> missingColumnNames = RequiredColumnNames.Where(requiredColumnName => !reader.ColumnNames.Contains(requiredColumnName)).ToList();
if (missingColumnNames.Count > 0)
{
throw new Exception($"Missing column names: {string.Join(", ", missingColumnNames)}.");
}
}
public void When_source_contains_only_line_breaks_it_should_fail()
{
// Arrange
var source = new StringReader("\n\n");
// Act
Action action = () => _ = new DelimitedValuesReader(source);
// Assert
action.Should().ThrowExactly <DelimitedValuesParseException>().WithMessage("Source contains no columns.");
}
public void When_source_contains_single_line_break_it_should_fail()
{
// Arrange
var source = new StringReader("\n");
// Act
Action action = () => _ = new DelimitedValuesReader(source);
// Assert
action.Should().ThrowExactly <DelimitedValuesParseException>().WithMessage("Missing column names on first line.");
}
public void When_only_header_has_been_read_it_should_be_positioned_at_first_line()
{
// Arrange
Func <DelimitedValuesReader> construction = () => new DelimitedValuesReaderBuilder().Build();
// Act
using DelimitedValuesReader reader = construction();
// Assert
reader.LineNumber.Should().Be(1);
}
private static Dictionary<int, CompetitionRunResult> ImportRunResultsFrom([NotNull] string path)
{
DateTime currentTimeUtc = SystemContext.UtcNow();
var imported = new Dictionary<int, CompetitionRunResult>();
using (var textReader = new StreamReader(path))
{
var settings = new DelimitedValuesReaderSettings { Culture = Settings.Default.ImportExportCulture };
using (var valuesReader = new DelimitedValuesReader(textReader, settings))
{
AssertRequiredColumnsExist(valuesReader);
bool hasOptionalColumns = ContainsOptionalColumnNames(valuesReader);
foreach (IDelimitedValuesReaderRow row in valuesReader)
{
try
{
CompetitionRunResult runResult = GetRunResultFrom(row, hasOptionalColumns, currentTimeUtc);
imported[runResult.Competitor.Number] = runResult;
}
catch (Exception ex)
{
throw new Exception(
$"Failed to read import file at row {valuesReader.LineNumber}: {ex.Message}", ex);
}
}
}
}
return imported;
}
private static bool ContainsOptionalColumnNames(DelimitedValuesReader reader)
{
return(OptionalColumnNames.All(optionalColumnName => reader.ColumnNames.Contains(optionalColumnName)));
}