tests/test-hgwebdir-gc.py

automation: refresh requirements

I'm hitting errors installing the old version of cffi due to an
apparent issue where older versions of cffi aren't compatible with
the modern Clang I'm using. So let's upgrade packages to unbreak
things and to keep things modern.

Differential Revision: https://phab.mercurial-scm.org/D12629

import os
from mercurial.hgweb import hgwebdir_mod

hgwebdir = hgwebdir_mod.hgwebdir

os.mkdir(b'webdir')
os.chdir(b'webdir')

webdir = os.path.realpath(b'.')


def trivial_response(req, res):
    return []


def make_hgwebdir(gc_rate=None):
    config = os.path.join(webdir, b'hgwebdir.conf')
    with open(config, 'wb') as configfile:
        configfile.write(b'[experimental]\n')
        if gc_rate is not None:
            configfile.write(b'web.full-garbage-collection-rate=%d\n' % gc_rate)
    hg_wd = hgwebdir(config)
    hg_wd._runwsgi = trivial_response
    return hg_wd


def process_requests(webdir_instance, number):
    # we don't care for now about passing realistic arguments
    for _ in range(number):
        for chunk in webdir_instance.run_wsgi(None, None):
            pass


without_gc = make_hgwebdir(gc_rate=0)
process_requests(without_gc, 5)
assert without_gc.requests_count == 5
assert without_gc.gc_full_collections_done == 0

with_gc = make_hgwebdir(gc_rate=2)
process_requests(with_gc, 5)
assert with_gc.requests_count == 5
assert with_gc.gc_full_collections_done == 2

with_systematic_gc = make_hgwebdir()  # default value of the setting
process_requests(with_systematic_gc, 3)
assert with_systematic_gc.requests_count == 3
assert with_systematic_gc.gc_full_collections_done == 3