private GitIndex LoadIndex(uint version)
{
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
string workingDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string path = Path.Combine(workingDirectory, @"Data\index_v" + version);
path.ShouldBeAPhysicalFile(fileSystem);
GitIndex index = new GitIndex(new MockTracer(), new MockEnlistment(), path, path + ".lock");
index.Initialize();
return(index);
}