121 lines
3.5 KiB
Python
121 lines
3.5 KiB
Python
"""TestCases for using the DB.join and DBCursor.join_item methods.
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"""
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import shutil
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import sys, os
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import tempfile
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import time
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from pprint import pprint
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try:
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from threading import Thread, currentThread
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have_threads = 1
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except ImportError:
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have_threads = 0
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import unittest
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from bsddb.test.test_all import verbose
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from bsddb import db, dbshelve, StringKeys
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try:
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from bsddb3 import test_support
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except ImportError:
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from test import support as test_support
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#----------------------------------------------------------------------
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ProductIndex = [
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('apple', "Convenience Store"),
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('blueberry', "Farmer's Market"),
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('shotgun', "S-Mart"), # Aisle 12
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('pear', "Farmer's Market"),
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('chainsaw', "S-Mart"), # "Shop smart. Shop S-Mart!"
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('strawberry', "Farmer's Market"),
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]
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ColorIndex = [
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('blue', "blueberry"),
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('red', "apple"),
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('red', "chainsaw"),
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('red', "strawberry"),
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('yellow', "peach"),
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('yellow', "pear"),
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('black', "shotgun"),
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]
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def ASCII(s):
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return s.encode("ascii")
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class JoinTestCase(unittest.TestCase):
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keytype = ''
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def setUp(self):
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self.filename = self.__class__.__name__ + '.db'
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homeDir = os.path.join(tempfile.gettempdir(), 'db_home%d'%os.getpid())
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self.homeDir = homeDir
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try: os.mkdir(homeDir)
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except os.error: pass
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self.env = db.DBEnv()
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self.env.open(self.homeDir, db.DB_CREATE | db.DB_INIT_MPOOL | db.DB_INIT_LOCK )
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def tearDown(self):
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self.env.close()
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test_support.rmtree(self.homeDir)
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def test01_join(self):
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if verbose:
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print('\n', '-=' * 30)
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print("Running %s.test01_join..." % \
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self.__class__.__name__)
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# create and populate primary index
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priDB = db.DB(self.env)
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priDB.open(self.filename, "primary", db.DB_BTREE, db.DB_CREATE)
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[priDB.put(ASCII(k),ASCII(v)) for k,v in ProductIndex]
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# create and populate secondary index
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secDB = db.DB(self.env)
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secDB.set_flags(db.DB_DUP | db.DB_DUPSORT)
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secDB.open(self.filename, "secondary", db.DB_BTREE, db.DB_CREATE)
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[secDB.put(ASCII(k),ASCII(v)) for k,v in ColorIndex]
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sCursor = None
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jCursor = None
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try:
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# lets look up all of the red Products
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sCursor = secDB.cursor()
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# Don't do the .set() in an assert, or you can get a bogus failure
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# when running python -O
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tmp = sCursor.set(b'red')
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assert tmp
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# FIXME: jCursor doesn't properly hold a reference to its
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# cursors, if they are closed before jcursor is used it
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# can cause a crash.
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jCursor = priDB.join([sCursor])
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if jCursor.get(0) != (b'apple', b"Convenience Store"):
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self.fail("join cursor positioned wrong")
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if jCursor.join_item() != b'chainsaw':
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self.fail("DBCursor.join_item returned wrong item")
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if jCursor.get(0)[0] != b'strawberry':
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self.fail("join cursor returned wrong thing")
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if jCursor.get(0): # there were only three red items to return
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self.fail("join cursor returned too many items")
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finally:
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if jCursor:
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jCursor.close()
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if sCursor:
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sCursor.close()
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priDB.close()
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secDB.close()
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def test_suite():
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suite = unittest.TestSuite()
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suite.addTest(unittest.makeSuite(JoinTestCase))
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return suite
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