void PrepareForTesting(string sourceProjectPath, string relativeTemp)
{
string absoluteTemp = Path.Combine(rootTempDirectoryPath, relativeTemp);
Directory.CreateDirectory(absoluteTemp);
FileSystemHelperEx.CopyFolderContent(sourceProjectPath, absoluteTemp);
BaseTesterConfig.WorkingSolutionDirectoryPath = absoluteTemp;
}
void InitTempDir()
{
rootTempDirectoryPath = FileSystemHelperEx.CreateTempFolder();
}