mirror of https://github.com/python/cpython
175 lines
4.0 KiB
Python
175 lines
4.0 KiB
Python
"""
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TestCases for exercising a Queue DB.
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"""
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import sys, os, string
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import tempfile
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from pprint import pprint
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import unittest
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try:
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# For Pythons w/distutils pybsddb
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from bsddb3 import db
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except ImportError:
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# For Python 2.3
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from bsddb import db
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from .test_all import verbose
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letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
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#----------------------------------------------------------------------
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class SimpleQueueTestCase(unittest.TestCase):
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def setUp(self):
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self.filename = tempfile.mktemp()
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def tearDown(self):
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try:
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os.remove(self.filename)
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except os.error:
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pass
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def test01_basic(self):
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# Basic Queue tests using the deprecated DBCursor.consume method.
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if verbose:
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print('\n', '-=' * 30)
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print("Running %s.test01_basic..." % self.__class__.__name__)
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d = db.DB()
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d.set_re_len(40) # Queues must be fixed length
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d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
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if verbose:
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print("before appends" + '-' * 30)
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pprint(d.stat())
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for x in letters:
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d.append(x * 40)
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assert len(d) == 52
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d.put(100, "some more data")
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d.put(101, "and some more ")
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d.put(75, "out of order")
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d.put(1, "replacement data")
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assert len(d) == 55
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if verbose:
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print("before close" + '-' * 30)
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pprint(d.stat())
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d.close()
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del d
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d = db.DB()
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d.open(self.filename)
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if verbose:
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print("after open" + '-' * 30)
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pprint(d.stat())
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d.append("one more")
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c = d.cursor()
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if verbose:
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print("after append" + '-' * 30)
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pprint(d.stat())
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rec = c.consume()
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while rec:
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if verbose:
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print(rec)
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rec = c.consume()
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c.close()
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if verbose:
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print("after consume loop" + '-' * 30)
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pprint(d.stat())
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assert len(d) == 0, \
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"if you see this message then you need to rebuild " \
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"BerkeleyDB 3.1.17 with the patch in patches/qam_stat.diff"
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d.close()
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def test02_basicPost32(self):
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# Basic Queue tests using the new DB.consume method in DB 3.2+
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# (No cursor needed)
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if verbose:
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print('\n', '-=' * 30)
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print("Running %s.test02_basicPost32..." % self.__class__.__name__)
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if db.version() < (3, 2, 0):
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if verbose:
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print("Test not run, DB not new enough...")
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return
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d = db.DB()
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d.set_re_len(40) # Queues must be fixed length
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d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
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if verbose:
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print("before appends" + '-' * 30)
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pprint(d.stat())
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for x in letters:
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d.append(x * 40)
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assert len(d) == 52
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d.put(100, "some more data")
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d.put(101, "and some more ")
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d.put(75, "out of order")
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d.put(1, "replacement data")
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assert len(d) == 55
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if verbose:
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print("before close" + '-' * 30)
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pprint(d.stat())
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d.close()
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del d
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d = db.DB()
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d.open(self.filename)
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#d.set_get_returns_none(true)
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if verbose:
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print("after open" + '-' * 30)
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pprint(d.stat())
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d.append("one more")
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if verbose:
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print("after append" + '-' * 30)
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pprint(d.stat())
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rec = d.consume()
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while rec:
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if verbose:
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print(rec)
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rec = d.consume()
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if verbose:
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print("after consume loop" + '-' * 30)
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pprint(d.stat())
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d.close()
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#----------------------------------------------------------------------
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def test_suite():
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return unittest.makeSuite(SimpleQueueTestCase)
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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