nodemap: test various corruption scenario for the persistent nodemap...
nodemap: test various corruption scenario for the persistent nodemap
Corruption can happens in the wild, either because some of our code is buggy or
because repository were shared/transfered in a strange manners.
Currently one of the corruption case (not enough data) lead to a crash. We add
explicit tests for theses cases.
Differential Revision:
https://phab.mercurial-scm.org/D10457
