| Class | KnitContentTestsMixin | No class docstring; 2/6 methods documented |
| Class | TestPlainKnitContent | Undocumented |
| Class | TestAnnotatedKnitContent | Undocumented |
| Class | MockTransport | Undocumented |
| Class | MockReadvFailingTransport | Fail in the middle of a readv() result. |
| Class | KnitRecordAccessTestsMixin | Tests for getting and putting knit records. |
| Class | TestKnitKnitAccess | Tests for the .kndx implementation. |
| Class | TestPackKnitAccess | Tests for the pack based access. |
| Class | LowLevelKnitDataTests | No class docstring; 1/9 methods documented |
| Class | LowLevelKnitIndexTests | No class docstring; 1/31 methods documented |
| Class | LowLevelKnitIndexTests_c | Undocumented |
| Class | Test_KnitAnnotator | Undocumented |
| Class | KnitTests | Class containing knit test helper routines. |
| Class | TestBadShaError | Tests for handling of sha errors. |
| Class | TestKnitIndex | No class docstring; 2/4 methods documented |
| Class | TestGraphIndexKnit | Tests for knits using a GraphIndex rather than a KnitIndex. |
| Class | TestNoParentsGraphIndexKnit | Tests for knits using _KnitGraphIndex with no parents. |
| Class | TestKnitVersionedFiles | Undocumented |
| Class | TestStacking | Undocumented |
| Class | TestNetworkBehaviour | Tests for getting data out of/into knits over the network. |
| Class | TestContentMapGenerator | Tests for ContentMapGenerator |
| Class | _TestException | Just an exception for local tests to use. |