# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""unit tests for module cubicweb.server.sources.storages"""
from __future__ import with_statement
from logilab.common.testlib import unittest_main, tag, Tags
from cubicweb.devtools.testlib import CubicWebTC
import os.path as osp
import shutil
import tempfile
from cubicweb import Binary, QueryError
from cubicweb.selectors import is_instance
from cubicweb.server.sources import storages
from cubicweb.server.hook import Hook, Operation
class DummyBeforeHook(Hook):
__regid__ = 'dummy-before-hook'
__select__ = Hook.__select__ & is_instance('File')
events = ('before_add_entity',)
def __call__(self):
self._cw.transaction_data['orig_file_value'] = self.entity.data.getvalue()
class DummyAfterHook(Hook):
__regid__ = 'dummy-after-hook'
__select__ = Hook.__select__ & is_instance('File')
events = ('after_add_entity',)
def __call__(self):
# new value of entity.data should be the same as before
oldvalue = self._cw.transaction_data['orig_file_value']
assert oldvalue == self.entity.data.getvalue()
class StorageTC(CubicWebTC):
tags = CubicWebTC.tags | Tags('Storage', 'BFSS')
def setup_database(self):
self.tempdir = tempfile.mkdtemp()
bfs_storage = storages.BytesFileSystemStorage(self.tempdir)
storages.set_attribute_storage(self.repo, 'File', 'data', bfs_storage)
def tearDown(self):
super(CubicWebTC, self).tearDown()
storages.unset_attribute_storage(self.repo, 'File', 'data')
shutil.rmtree(self.tempdir)
def create_file(self, content='the-data'):
req = self.request()
return req.create_entity('File', data=Binary(content),
data_format=u'text/plain', data_name=u'foo.pdf')
def fspath(self, entity):
fspath = self.execute('Any fspath(D) WHERE F eid %(f)s, F data D',
{'f': entity.eid})[0][0]
return fspath.getvalue()
def test_bfss_wrong_fspath_usage(self):
f1 = self.create_file()
self.execute('Any fspath(D) WHERE F eid %(f)s, F data D', {'f': f1.eid})
with self.assertRaises(NotImplementedError) as cm:
self.execute('Any fspath(F) WHERE F eid %(f)s', {'f': f1.eid})
self.assertEqual(str(cm.exception),
'This callback is only available for BytesFileSystemStorage '
'managed attribute. Is FSPATH() argument BFSS managed?')
def test_bfss_storage(self):
f1 = self.create_file()
expected_filepath = osp.join(self.tempdir, '%s_data_%s' %
(f1.eid, f1.data_name))
self.failUnless(osp.isfile(expected_filepath))
self.assertEqual(file(expected_filepath).read(), 'the-data')
self.rollback()
self.failIf(osp.isfile(expected_filepath))
f1 = self.create_file()
self.commit()
self.assertEqual(file(expected_filepath).read(), 'the-data')
f1.set_attributes(data=Binary('the new data'))
self.rollback()
self.assertEqual(file(expected_filepath).read(), 'the-data')
f1.cw_delete()
self.failUnless(osp.isfile(expected_filepath))
self.rollback()
self.failUnless(osp.isfile(expected_filepath))
f1.cw_delete()
self.commit()
self.failIf(osp.isfile(expected_filepath))
def test_bfss_sqlite_fspath(self):
f1 = self.create_file()
expected_filepath = osp.join(self.tempdir, '%s_data_%s' % (f1.eid, f1.data_name))
self.assertEqual(self.fspath(f1), expected_filepath)
def test_bfss_fs_importing_doesnt_touch_path(self):
self.session.transaction_data['fs_importing'] = True
filepath = osp.abspath(__file__)
f1 = self.session.create_entity('File', data=Binary(filepath),
data_format=u'text/plain', data_name=u'foo')
self.assertEqual(self.fspath(f1), filepath)
def test_source_storage_transparency(self):
with self.temporary_appobjects(DummyBeforeHook, DummyAfterHook):
self.create_file()
def test_source_mapped_attribute_error_cases(self):
with self.assertRaises(QueryError) as cm:
self.execute('Any X WHERE X data ~= "hop", X is File')
self.assertEqual(str(cm.exception), 'can\'t use File.data (X data ILIKE "hop") in restriction')
with self.assertRaises(QueryError) as cm:
self.execute('Any X, Y WHERE X data D, Y data D, '
'NOT X identity Y, X is File, Y is File')
self.assertEqual(str(cm.exception), "can't use D as a restriction variable")
# query returning mix of mapped / regular attributes (only file.data
# mapped, not image.data for instance)
with self.assertRaises(QueryError) as cm:
self.execute('Any X WITH X BEING ('
' (Any NULL)'
' UNION '
' (Any D WHERE X data D, X is File)'
')')
self.assertEqual(str(cm.exception), 'query fetch some source mapped attribute, some not')
with self.assertRaises(QueryError) as cm:
self.execute('(Any D WHERE X data D, X is File)'
' UNION '
'(Any D WHERE X title D, X is Bookmark)')
self.assertEqual(str(cm.exception), 'query fetch some source mapped attribute, some not')
storages.set_attribute_storage(self.repo, 'State', 'name',
storages.BytesFileSystemStorage(self.tempdir))
try:
with self.assertRaises(QueryError) as cm:
self.execute('Any D WHERE X name D, X is IN (State, Transition)')
self.assertEqual(str(cm.exception), 'query fetch some source mapped attribute, some not')
finally:
storages.unset_attribute_storage(self.repo, 'State', 'name')
def test_source_mapped_attribute_advanced(self):
f1 = self.create_file()
rset = self.execute('Any X,D WITH D,X BEING ('
' (Any D, X WHERE X eid %(x)s, X data D)'
' UNION '
' (Any D, X WHERE X eid %(x)s, X data D)'
')', {'x': f1.eid})
self.assertEqual(len(rset), 2)
self.assertEqual(rset[0][0], f1.eid)
self.assertEqual(rset[1][0], f1.eid)
self.assertEqual(rset[0][1].getvalue(), 'the-data')
self.assertEqual(rset[1][1].getvalue(), 'the-data')
rset = self.execute('Any X,LENGTH(D) WHERE X eid %(x)s, X data D',
{'x': f1.eid})
self.assertEqual(len(rset), 1)
self.assertEqual(rset[0][0], f1.eid)
self.assertEqual(rset[0][1], len('the-data'))
rset = self.execute('Any X,LENGTH(D) WITH D,X BEING ('
' (Any D, X WHERE X eid %(x)s, X data D)'
' UNION '
' (Any D, X WHERE X eid %(x)s, X data D)'
')', {'x': f1.eid})
self.assertEqual(len(rset), 2)
self.assertEqual(rset[0][0], f1.eid)
self.assertEqual(rset[1][0], f1.eid)
self.assertEqual(rset[0][1], len('the-data'))
self.assertEqual(rset[1][1], len('the-data'))
with self.assertRaises(QueryError) as cm:
self.execute('Any X,UPPER(D) WHERE X eid %(x)s, X data D',
{'x': f1.eid})
self.assertEqual(str(cm.exception), 'UPPER can not be called on mapped attribute')
def test_bfss_fs_importing_transparency(self):
self.session.transaction_data['fs_importing'] = True
filepath = osp.abspath(__file__)
f1 = self.session.create_entity('File', data=Binary(filepath),
data_format=u'text/plain', data_name=u'foo')
self.assertEqual(f1.data.getvalue(), file(filepath).read(),
'files content differ')
@tag('update')
def test_bfss_update_with_existing_data(self):
# use self.session to use server-side cache
f1 = self.session.create_entity('File', data=Binary('some data'),
data_format=u'text/plain', data_name=u'foo')
# NOTE: do not use set_attributes() which would automatically
# update f1's local dict. We want the pure rql version to work
self.execute('SET F data %(d)s WHERE F eid %(f)s',
{'d': Binary('some other data'), 'f': f1.eid})
self.assertEqual(f1.data.getvalue(), 'some other data')
self.commit()
f2 = self.execute('Any F WHERE F eid %(f)s, F is File', {'f': f1.eid}).get_entity(0, 0)
self.assertEqual(f2.data.getvalue(), 'some other data')
@tag('update', 'extension', 'commit')
def test_bfss_update_with_different_extension_commited(self):
# use self.session to use server-side cache
f1 = self.session.create_entity('File', data=Binary('some data'),
data_format=u'text/plain', data_name=u'foo.txt')
# NOTE: do not use set_attributes() which would automatically
# update f1's local dict. We want the pure rql version to work
self.commit()
old_path = self.fspath(f1)
self.failUnless(osp.isfile(old_path))
self.assertEqual(osp.splitext(old_path)[1], '.txt')
self.execute('SET F data %(d)s, F data_name %(dn)s, F data_format %(df)s WHERE F eid %(f)s',
{'d': Binary('some other data'), 'f': f1.eid, 'dn': u'bar.jpg', 'df': u'image/jpeg'})
self.commit()
# the new file exists with correct extension
# the old file is dead
f2 = self.execute('Any F WHERE F eid %(f)s, F is File', {'f': f1.eid}).get_entity(0, 0)
new_path = self.fspath(f2)
self.failIf(osp.isfile(old_path))
self.failUnless(osp.isfile(new_path))
self.assertEqual(osp.splitext(new_path)[1], '.jpg')
@tag('update', 'extension', 'rollback')
def test_bfss_update_with_different_extension_rollbacked(self):
# use self.session to use server-side cache
f1 = self.session.create_entity('File', data=Binary('some data'),
data_format=u'text/plain', data_name=u'foo.txt')
# NOTE: do not use set_attributes() which would automatically
# update f1's local dict. We want the pure rql version to work
self.commit()
old_path = self.fspath(f1)
old_data = f1.data.getvalue()
self.failUnless(osp.isfile(old_path))
self.assertEqual(osp.splitext(old_path)[1], '.txt')
self.execute('SET F data %(d)s, F data_name %(dn)s, F data_format %(df)s WHERE F eid %(f)s',
{'d': Binary('some other data'), 'f': f1.eid, 'dn': u'bar.jpg', 'df': u'image/jpeg'})
self.rollback()
# the new file exists with correct extension
# the old file is dead
f2 = self.execute('Any F WHERE F eid %(f)s, F is File', {'f': f1.eid}).get_entity(0, 0)
new_path = self.fspath(f2)
new_data = f2.data.getvalue()
self.failUnless(osp.isfile(new_path))
self.assertEqual(osp.splitext(new_path)[1], '.txt')
self.assertEqual(old_path, new_path)
self.assertEqual(old_data, new_data)
@tag('fs_importing', 'update')
def test_bfss_update_with_fs_importing(self):
# use self.session to use server-side cache
f1 = self.session.create_entity('File', data=Binary('some data'),
data_format=u'text/plain', data_name=u'foo')
old_fspath = self.fspath(f1)
self.session.transaction_data['fs_importing'] = True
new_fspath = osp.join(self.tempdir, 'newfile.txt')
file(new_fspath, 'w').write('the new data')
self.execute('SET F data %(d)s WHERE F eid %(f)s',
{'d': Binary(new_fspath), 'f': f1.eid})
self.commit()
self.assertEqual(f1.data.getvalue(), 'the new data')
self.assertEqual(self.fspath(f1), new_fspath)
self.failIf(osp.isfile(old_fspath))
@tag('fsimport')
def test_clean(self):
fsimport = storages.fsimport
td = self.session.transaction_data
self.assertNotIn('fs_importing', td)
with fsimport(self.session):
self.assertIn('fs_importing', td)
self.assertTrue(td['fs_importing'])
self.assertNotIn('fs_importing', td)
@tag('fsimport')
def test_true(self):
fsimport = storages.fsimport
td = self.session.transaction_data
td['fs_importing'] = True
with fsimport(self.session):
self.assertIn('fs_importing', td)
self.assertTrue(td['fs_importing'])
self.assertTrue(td['fs_importing'])
@tag('fsimport')
def test_False(self):
fsimport = storages.fsimport
td = self.session.transaction_data
td['fs_importing'] = False
with fsimport(self.session):
self.assertIn('fs_importing', td)
self.assertTrue(td['fs_importing'])
self.assertFalse(td['fs_importing'])
if __name__ == '__main__':
unittest_main()