I am working on a C# console application that loads the data from a third party and bulk inserts into tables. Basically the code consists of a static method with logging statements. In these scenarios, how does one write the unit test cases?Example codevoid Main(string[] args){    // for loop here to read config from XML file    // initialize third party library    ReportLib objLib = new ReportLib();    DataTable dt = objLib.Refresh(test);    //call SQL bulk copy    DBHelper.BulkCopy(dt, dictmappings, destTblName);//dbhelper is static class}
How to write unit tests for utility programs
unit testing
Actually, given your case is really that small and simple as it looks like in your example code, I would probably omit any unit test and write an automated integration or system test instead. Here is my outline of such a test:provide a fixed XML config file as part of your test suiteclear the destination table in your test databaserun your program (either as a separate process, or by moving the contents of your Main function into a separate function in a separate DLL you can easily reference and call from your test DLL)check if the destination table now has the expected contentsYou can use a tool like NUnit for such a kind of test, too, like for real unit tests (that's why people sometimes call these kind of tests incorrectly unit tests, too).