view tests/README @ 14163:38184a72d793

debugbuilddag: use memctx for speed

This drops the options to run arbitrary shell commands within
commits and the option to create a file that gets appended to
in every revision. It now supports to not write file data at
all, which is very fast for generating a pure 00changelog.i
(useful for discovery tests, for instance).

Timings for 1000 linear nodes:
 * Old `hg debugbuilddag -o '+1000'` took 4.5 secs.
 * New `hg debugbuilddag -o '+1000'` takes 2 secs.
 * New `hg debugbuilddag '+1000'` takes 0.8 secs.

(The last one creates only 00changelog.i).

To run the tests, do:

cd tests/
python run-tests.py

See http://mercurial.selenic.com/wiki/WritingTests for
more information on writing tests.