static void Main(string[] args)
{
//validate input parameters
if (!ValidateParamsLength(args))
{
return;
}
//read input parameters
string path = args[0];
int filterColumnIndex = 0;
string filterColumnValue = null;
if (args.Length == 3)
{
if (!Int32.TryParse(args[1], out filterColumnIndex) || filterColumnIndex < 1)
{
ReportError($"Param {filterColumnIndexParamName} must be an integer, starting from 1.");
return;
}
filterColumnValue = args[2];
}
try
{
//read file
CSVFileParser parser = new CSVFileParser(path);
CommaSeparatedValues csvData = parser.Read();
//output to console depending on input parameters
if (filterColumnValue == null)
{
Console.Write(csvData.ToString());
}
else
{
//validate filterColumnIndex
if (filterColumnIndex < 1 || filterColumnIndex > csvData.ColumnsCount)
{
throw new IndexOutOfRangeException(string.Format("{0} is out of range.", nameof(filterColumnIndex)));
}
int filterColumnIndex0Based = filterColumnIndex - 1;
Console.Write(csvData.ToString(filterColumnIndex0Based, filterColumnValue));
}
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
}
catch (Exception ex)
{
Console.WriteLine(string.Format("Error during processing. Exception message: {0} ", ex.Message));
}
}
public void TestRead(string inputFilePath, string[][] expectedCSVFields, Encoding encoding)
{
CSVFileParser parser = new CSVFileParser(Path.Combine(Helper.GetAssemblyPath(), inputFilePath), encoding);
CommaSeparatedValues csv = parser.Read();
Assert.AreEqual(expectedCSVFields.Length > 0 ? expectedCSVFields[0].Length : 0, csv.ColumnsCount);
Assert.AreEqual(expectedCSVFields.Length, csv.RowsCount);
for (int i = 0; i < expectedCSVFields.Length; i++)
{
for (int j = 0; j < expectedCSVFields[i].Length; j++)
{
Assert.AreEqual(expectedCSVFields[i][j], csv.GetField(i, j));
}
}
}
public void TestReadFail(string inputFilePath, Encoding encoding)
{
CSVFileParser parser = new CSVFileParser(Path.Combine(Helper.GetAssemblyPath(), inputFilePath), encoding);
Assert.Throws(typeof(CSVFormatException), () => parser.Read());
}