| Class | TestSendMixin | Undocumented |
| Class | TestSend | No class docstring; 5/19 methods documented |
| Class | TestSendStrictMixin | Undocumented |
| Class | TestSendStrictWithoutChanges | Undocumented |
| Class | TestSendStrictWithChanges | Undocumented |
| Class | TestBundleStrictWithoutChanges | Undocumented |