/// <summary>
/// Creates a random file (one with a unique name and contents) in the web root of apiCassini
///
/// The file name is created by <code>var fileName = "randomFile_{0}.{1}".format(6.randomLetters(), extension);</code>
/// </summary>
/// <param name="apiCassini"></param>
/// <param name="extension"></param>
/// <returns></returns>
public static string create_Random_File(this API_Cassini apiCassini, string extension)
{
var fileName = "randomFile_{0}.{1}".format(6.randomLetters(), extension);
var fileContents = "This is a random file created by API_Cassini.create_Random_File extension method".line().add_5_RandomLetters();
return(apiCassini.create_File(fileName, fileContents));
}