public void diff_should_return_empty_for_same_list() { var installerClient = new WindowsInstallerClient(); var diffGenerator = new DiffGenerator <WindowsInstallerRecord>(installerClient.GetRecords(), installerClient.GetRecords(), c => $"{c.Is64}_{c.Id}"); diffGenerator.Added().Should().BeEmpty(); diffGenerator.Removed().Should().BeEmpty(); diffGenerator.Updated().Should().BeEmpty(); }