| Class | TestHexToSha | Undocumented |
| Class | BlobReadTests | Test decompression of blobs |
| Class | ShaFileCheckTests | Undocumented |
| Class | ShaFileTests | Undocumented |
| Class | CommitSerializationTests | Undocumented |
| Class | CommitParseTests | No class docstring; 2/13 methods documented |
| Class | TreeTests | Undocumented |
| Class | TagSerializeTests | Undocumented |
| Class | TagParseTests | No class docstring; 2/11 methods documented |
| Class | CheckTests | Undocumented |
| Class | TimezoneTests | Undocumented |
| Class | ShaFileCopyTests | Undocumented |
| Class | ShaFileSerializeTests | ShaFile objects only gets serialized once if they haven't changed. |
| Class | PrettyFormatTreeEntryTests | Undocumented |