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# -*- coding: utf-8 -*-
"""
Authors: pietro
Copyright: (C) 2015 pietro
This program is free software under the GNU General Public
License (>=v2). Read the file COPYING that comes with GRASS
for details.
Created on Wed Jul 15 11:34:32 2015
"""
from __future__ import absolute_import
import sys
import fnmatch
from grass.gunittest.case import TestCase
from grass.gunittest.main import test
def check(*patterns):
"""Return a set of the imported libraries that soddisfies several patterns.
"""
result = []
imports = sorted(sys.modules.keys())
for pattern in patterns:
result.extend(fnmatch.filter(imports, pattern))
return set(result)
class TestImportIsolation(TestCase):
patterns = ['grass.lib*']
def test_import_isolation(self):
"""Check that modules classes are not using ctypes"""
isolate = set()
self.assertEqual(isolate, check(*self.patterns),
msg="Test isolation before any import.")
# same import done in __init__ file
from grass.pygrass.modules.interface import Module, ParallelModuleQueue
from grass.pygrass.modules import shortcuts
self.assertEqual(isolate, check(*self.patterns),
msg="Test isolation after import Module.")
# test the other way round
from grass.pygrass.vector import VectorTopo
self.assertNotEqual(isolate, check(*self.patterns),
msg=("Test the isolation is broken, therefore "
"the defined patterns are correct"))
if __name__ == '__main__':
test()
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