view tests/README @ 39963:693dda764efe

narrow: don't do the dirstate dance if ellipses is not enabled

I believe we set dirstate parents to nullid before widening pull because in
ellipses cases, the parent might be stripped off with a new changeset. However
the second ds.setparents() call invalidate my assumption. I am not sure why we
do this. So here is a patch.

This patch also adds tests showing we break nothing in non-ellipses cases.

Differential Revision: https://phab.mercurial-scm.org/D4788

To run the tests, do:

cd tests/
python run-tests.py

See https://mercurial-scm.org/wiki/WritingTests for
more information on writing tests.