Test Vectors have moved to test-vectors.
When implementing features that impact test vectors you will need to regenerate them.
Toggle the OVERWRITE_TEST_VECTORS boolean on test-vectors.
Once new vectors have been generated, your tests will all start failing.
Then you need to update the other fixtures, by toggling OVERWRITE_FIXTURES.
For example see Resolver.spec.ts.
When running tests with OVERWRITE_FIXTURES set to true, the received output will be written to disk.
The next time you run the test, it should pass, because received will match expected.
Be sure to review the JSON that is being written to disk, its possible for test to pass and the JSON on disk to be incorrect.