| Class | RecordLister | Undocumented |
| Function | commit_file | Create a commit that updates a file to specified contents. |
| Function | create_example_bzr_merge | Create a merge proposal with conflicts and updates. |
| Class | DiffTestCase | No class docstring; 3/4 methods documented |
| Class | TestDiff | Undocumented |
| Class | TestDiffInScripts | No class docstring; 1/9 methods documented |
| Class | TestPreviewDiff | Test that PreviewDiff objects work. |
| Class | TestIncrementalDiff | Test that IncrementalDiff objects work. |