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"""
Copyright (c) 2008-2020, Jesus Cea Avion <jcea@jcea.es>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
3. Neither the name of Jesus Cea Avion nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
"""
"""
TestCases for exercising a Queue DB.
"""
import os, string
from pprint import pprint
import unittest
from test_all import db, verbose, get_new_database_path
#----------------------------------------------------------------------
class SimpleQueueTestCase(unittest.TestCase):
def setUp(self):
self.filename = get_new_database_path()
def tearDown(self):
try:
os.remove(self.filename)
except os.error:
pass
def test01_basic(self):
# Basic Queue tests using the deprecated DBCursor.consume method.
if verbose:
print '\n', '-=' * 30
print "Running %s.test01_basic..." % self.__class__.__name__
d = db.DB()
d.set_re_len(40) # Queues must be fixed length
d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
if verbose:
print "before appends" + '-' * 30
pprint(d.stat())
for x in string.ascii_letters:
d.append(x * 40)
self.assertEqual(len(d), len(string.ascii_letters))
d.put(100, "some more data")
d.put(101, "and some more ")
d.put(75, "out of order")
d.put(1, "replacement data")
self.assertEqual(len(d), len(string.ascii_letters)+3)
if verbose:
print "before close" + '-' * 30
pprint(d.stat())
d.close()
del d
d = db.DB()
d.open(self.filename)
if verbose:
print "after open" + '-' * 30
pprint(d.stat())
# Test "txn" as a positional parameter
d.append("one more", None)
# Test "txn" as a keyword parameter
d.append("another one", txn=None)
c = d.cursor()
if verbose:
print "after append" + '-' * 30
pprint(d.stat())
rec = c.consume()
while rec:
if verbose:
print rec
rec = c.consume()
c.close()
if verbose:
print "after consume loop" + '-' * 30
pprint(d.stat())
self.assertEqual(len(d), 0, \
"if you see this message then you need to rebuild " \
"Berkeley DB 3.1.17 with the patch in patches/qam_stat.diff")
d.close()
def test02_basicPost32(self):
# Basic Queue tests using the new DB.consume method in DB 3.2+
# (No cursor needed)
if verbose:
print '\n', '-=' * 30
print "Running %s.test02_basicPost32..." % self.__class__.__name__
d = db.DB()
d.set_re_len(40) # Queues must be fixed length
d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
if verbose:
print "before appends" + '-' * 30
pprint(d.stat())
for x in string.ascii_letters:
d.append(x * 40)
self.assertEqual(len(d), len(string.ascii_letters))
d.put(100, "some more data")
d.put(101, "and some more ")
d.put(75, "out of order")
d.put(1, "replacement data")
self.assertEqual(len(d), len(string.ascii_letters)+3)
if verbose:
print "before close" + '-' * 30
pprint(d.stat())
d.close()
del d
d = db.DB()
d.open(self.filename)
#d.set_get_returns_none(true)
if verbose:
print "after open" + '-' * 30
pprint(d.stat())
d.append("one more")
if verbose:
print "after append" + '-' * 30
pprint(d.stat())
rec = d.consume()
while rec:
if verbose:
print rec
rec = d.consume()
if verbose:
print "after consume loop" + '-' * 30
pprint(d.stat())
d.close()
#----------------------------------------------------------------------
def test_suite():
return unittest.makeSuite(SimpleQueueTestCase)
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')
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