utils.py
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"""Test helpers
"""
import sys
import os.path
from ConfigParser import ConfigParser
import logging
def makeRecipe(recipe_class, options, name='test', slap_connection=None):
"""Instanciate a recipe of `recipe_class` with `options` with a buildout
mapping containing a python and an empty `slapos-connection` mapping, unless
provided as `slap_connection`.
If running tests in a buildout folder, the test recipe will reuse the
`eggs-directory` and `develop-eggs-directory` from this buildout so that the
test recipe does not need to install eggs again when using working set.
To prevent test accidentally writing to the buildout's eggs repositories, we
set `newest` to false and `offline` to true in this case.
"""
buildout = {
'buildout': {
'bin-directory': '',
'find-links': '',
'allow-hosts': '',
'develop-eggs-directory': '',
'eggs-directory': '',
'python': 'testpython',
},
'testpython': {
'executable': sys.executable,
},
'slap-connection': {
'computer-id': '',
'partition-id': '',
'server-url': '',
'software-release-url': '',
}
}
if slap_connection is not None:
buildout['slap-connection'] = slap_connection
# are we in buildout folder ?
# the usual layout is
# ${buildout:directory}/parts/slapos-repository/slapos/test/utils.py , so try
# to find a buildout relative to this file.
buildout_cfg = os.path.join(os.path.dirname(__file__), '..', '..', '..', '..', 'buildout.cfg')
if os.path.exists(buildout_cfg):
parser = ConfigParser()
parser.readfp(open(buildout_cfg))
eggs_directory = parser.get('buildout', 'eggs-directory')
develop_eggs_directory = parser.get('buildout', 'develop-eggs-directory')
logging.getLogger(__name__).info(
'Using eggs-directory (%s) and develop-eggs-directory (%s) from buildout at %s',
eggs_directory,
develop_eggs_directory,
buildout_cfg)
buildout['buildout']['eggs-directory'] = eggs_directory
buildout['buildout']['develop-eggs-directory'] = develop_eggs_directory
buildout['buildout']['newest'] = False
buildout['buildout']['offline'] = True
return recipe_class(buildout=buildout, name=name, options=options)