358 lines
9.6 KiB
Python
358 lines
9.6 KiB
Python
"""
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TestCases for checking dbShelve objects.
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"""
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import os, string
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import tempfile, random
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from types import *
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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, dbshelve
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except ImportError:
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# For Python 2.3
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from bsddb import db, dbshelve
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from test_all import verbose
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#----------------------------------------------------------------------
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# We want the objects to be comparable so we can test dbshelve.values
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# later on.
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class DataClass:
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def __init__(self):
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self.value = random.random()
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def __cmp__(self, other):
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return cmp(self.value, other)
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class DBShelveTestCase(unittest.TestCase):
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def setUp(self):
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self.filename = tempfile.mktemp()
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self.do_open()
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def tearDown(self):
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self.do_close()
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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 mk(self, key):
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"""Turn key into an appropriate key type for this db"""
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# override in child class for RECNO
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return key
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def populateDB(self, d):
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for x in string.letters:
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d[self.mk('S' + x)] = 10 * x # add a string
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d[self.mk('I' + x)] = ord(x) # add an integer
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d[self.mk('L' + x)] = [x] * 10 # add a list
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inst = DataClass() # add an instance
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inst.S = 10 * x
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inst.I = ord(x)
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inst.L = [x] * 10
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d[self.mk('O' + x)] = inst
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# overridable in derived classes to affect how the shelf is created/opened
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def do_open(self):
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self.d = dbshelve.open(self.filename)
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# and closed...
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def do_close(self):
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self.d.close()
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def test01_basics(self):
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if verbose:
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print '\n', '-=' * 30
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print "Running %s.test01_basics..." % self.__class__.__name__
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self.populateDB(self.d)
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self.d.sync()
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self.do_close()
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self.do_open()
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d = self.d
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l = len(d)
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k = d.keys()
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s = d.stat()
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f = d.fd()
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if verbose:
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print "length:", l
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print "keys:", k
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print "stats:", s
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assert 0 == d.has_key(self.mk('bad key'))
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assert 1 == d.has_key(self.mk('IA'))
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assert 1 == d.has_key(self.mk('OA'))
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d.delete(self.mk('IA'))
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del d[self.mk('OA')]
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assert 0 == d.has_key(self.mk('IA'))
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assert 0 == d.has_key(self.mk('OA'))
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assert len(d) == l-2
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values = []
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for key in d.keys():
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value = d[key]
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values.append(value)
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if verbose:
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print "%s: %s" % (key, value)
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self.checkrec(key, value)
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dbvalues = d.values()
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assert len(dbvalues) == len(d.keys())
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values.sort()
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dbvalues.sort()
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assert values == dbvalues
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items = d.items()
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assert len(items) == len(values)
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for key, value in items:
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self.checkrec(key, value)
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assert d.get(self.mk('bad key')) == None
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assert d.get(self.mk('bad key'), None) == None
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assert d.get(self.mk('bad key'), 'a string') == 'a string'
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assert d.get(self.mk('bad key'), [1, 2, 3]) == [1, 2, 3]
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d.set_get_returns_none(0)
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self.assertRaises(db.DBNotFoundError, d.get, self.mk('bad key'))
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d.set_get_returns_none(1)
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d.put(self.mk('new key'), 'new data')
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assert d.get(self.mk('new key')) == 'new data'
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assert d[self.mk('new key')] == 'new data'
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def test02_cursors(self):
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if verbose:
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print '\n', '-=' * 30
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print "Running %s.test02_cursors..." % self.__class__.__name__
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self.populateDB(self.d)
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d = self.d
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count = 0
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c = d.cursor()
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rec = c.first()
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while rec is not None:
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count = count + 1
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if verbose:
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print rec
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key, value = rec
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self.checkrec(key, value)
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rec = c.next()
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del c
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assert count == len(d)
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count = 0
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c = d.cursor()
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rec = c.last()
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while rec is not None:
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count = count + 1
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if verbose:
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print rec
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key, value = rec
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self.checkrec(key, value)
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rec = c.prev()
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assert count == len(d)
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c.set(self.mk('SS'))
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key, value = c.current()
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self.checkrec(key, value)
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del c
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def test03_append(self):
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# NOTE: this is overridden in RECNO subclass, don't change its name.
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if verbose:
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print '\n', '-=' * 30
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print "Running %s.test03_append..." % self.__class__.__name__
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self.assertRaises(dbshelve.DBShelveError,
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self.d.append, 'unit test was here')
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def checkrec(self, key, value):
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# override this in a subclass if the key type is different
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x = key[1]
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if key[0] == 'S':
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assert type(value) == StringType
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assert value == 10 * x
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elif key[0] == 'I':
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assert type(value) == IntType
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assert value == ord(x)
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elif key[0] == 'L':
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assert type(value) == ListType
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assert value == [x] * 10
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elif key[0] == 'O':
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assert type(value) == InstanceType
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assert value.S == 10 * x
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assert value.I == ord(x)
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assert value.L == [x] * 10
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else:
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raise AssertionError, 'Unknown key type, fix the test'
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#----------------------------------------------------------------------
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class BasicShelveTestCase(DBShelveTestCase):
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def do_open(self):
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self.d = dbshelve.DBShelf()
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self.d.open(self.filename, self.dbtype, self.dbflags)
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def do_close(self):
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self.d.close()
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class BTreeShelveTestCase(BasicShelveTestCase):
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dbtype = db.DB_BTREE
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dbflags = db.DB_CREATE
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class HashShelveTestCase(BasicShelveTestCase):
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dbtype = db.DB_HASH
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dbflags = db.DB_CREATE
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class ThreadBTreeShelveTestCase(BasicShelveTestCase):
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dbtype = db.DB_BTREE
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dbflags = db.DB_CREATE | db.DB_THREAD
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class ThreadHashShelveTestCase(BasicShelveTestCase):
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dbtype = db.DB_HASH
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dbflags = db.DB_CREATE | db.DB_THREAD
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#----------------------------------------------------------------------
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class BasicEnvShelveTestCase(DBShelveTestCase):
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def do_open(self):
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self.homeDir = homeDir = os.path.join(
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tempfile.gettempdir(), 'db_home')
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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(homeDir, self.envflags | db.DB_INIT_MPOOL | db.DB_CREATE)
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self.filename = os.path.split(self.filename)[1]
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self.d = dbshelve.DBShelf(self.env)
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self.d.open(self.filename, self.dbtype, self.dbflags)
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def do_close(self):
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self.d.close()
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self.env.close()
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def tearDown(self):
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self.do_close()
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import glob
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files = glob.glob(os.path.join(self.homeDir, '*'))
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for file in files:
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os.remove(file)
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class EnvBTreeShelveTestCase(BasicEnvShelveTestCase):
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envflags = 0
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dbtype = db.DB_BTREE
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dbflags = db.DB_CREATE
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class EnvHashShelveTestCase(BasicEnvShelveTestCase):
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envflags = 0
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dbtype = db.DB_HASH
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dbflags = db.DB_CREATE
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class EnvThreadBTreeShelveTestCase(BasicEnvShelveTestCase):
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envflags = db.DB_THREAD
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dbtype = db.DB_BTREE
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dbflags = db.DB_CREATE | db.DB_THREAD
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class EnvThreadHashShelveTestCase(BasicEnvShelveTestCase):
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envflags = db.DB_THREAD
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dbtype = db.DB_HASH
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dbflags = db.DB_CREATE | db.DB_THREAD
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#----------------------------------------------------------------------
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# test cases for a DBShelf in a RECNO DB.
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class RecNoShelveTestCase(BasicShelveTestCase):
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dbtype = db.DB_RECNO
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dbflags = db.DB_CREATE
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def setUp(self):
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BasicShelveTestCase.setUp(self)
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# pool to assign integer key values out of
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self.key_pool = list(range(1, 5000))
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self.key_map = {} # map string keys to the number we gave them
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self.intkey_map = {} # reverse map of above
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def mk(self, key):
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if key not in self.key_map:
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self.key_map[key] = self.key_pool.pop(0)
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self.intkey_map[self.key_map[key]] = key
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return self.key_map[key]
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def checkrec(self, intkey, value):
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key = self.intkey_map[intkey]
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BasicShelveTestCase.checkrec(self, key, value)
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def test03_append(self):
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if verbose:
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print '\n', '-=' * 30
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print "Running %s.test03_append..." % self.__class__.__name__
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self.d[1] = 'spam'
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self.d[5] = 'eggs'
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self.assertEqual(6, self.d.append('spam'))
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self.assertEqual(7, self.d.append('baked beans'))
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self.assertEqual('spam', self.d.get(6))
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self.assertEqual('spam', self.d.get(1))
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self.assertEqual('baked beans', self.d.get(7))
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self.assertEqual('eggs', self.d.get(5))
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#----------------------------------------------------------------------
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def test_suite():
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suite = unittest.TestSuite()
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suite.addTest(unittest.makeSuite(DBShelveTestCase))
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suite.addTest(unittest.makeSuite(BTreeShelveTestCase))
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suite.addTest(unittest.makeSuite(HashShelveTestCase))
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suite.addTest(unittest.makeSuite(ThreadBTreeShelveTestCase))
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suite.addTest(unittest.makeSuite(ThreadHashShelveTestCase))
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suite.addTest(unittest.makeSuite(EnvBTreeShelveTestCase))
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suite.addTest(unittest.makeSuite(EnvHashShelveTestCase))
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suite.addTest(unittest.makeSuite(EnvThreadBTreeShelveTestCase))
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suite.addTest(unittest.makeSuite(EnvThreadHashShelveTestCase))
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suite.addTest(unittest.makeSuite(RecNoShelveTestCase))
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return suite
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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