Run with "tox -e coverage". Uses a new helper
module (allmydata.test.run_trial) to let us import+execute trial without
knowing exactly where the "trial" binary lives, which helps with using
"coverage run" under tox.
So use 'tox -e check-memory' instead of 'make check-memory'. The tox
version will create a virtualenv and install tahoe for you before
running the tests, removing one use of the 'tahoe @FILENAME' hack (which
was used to run a python file with a PYTHONPATH set to import tahoe's
dependencies).
This adds support for two environments: 'py27' for basic tests, and
'deprecations' to run tests with deprecation warnings turned on (the
latter is meant to be run from a buildbot step that knows how to count
and format the warnings nicely).
Some dependencies are installed in the top-level directory, maybe
because they're required by the build process itself? I'm not sure.
Twisted is one of these, if the system version is not new enough, and
our .gitignore has a clause to ignore the resulting .egg directory. Now
that we've bumped our zope.interface dependency, it sometimes builds a
z.i egg too (even if it doesn't build a Twisted one). So ignore both.
This probably only works on Linux. It uses sudo to mount and unmount the tmpfs,
which may prompt for a password. refs #20
Signed-off-by: David-Sarah Hopwood <david-sarah@jacaranda.org>
