""" TestCases for checking dbShelve objects. """ import os, string import tempfile, random from types import * import unittest try: # For Pythons w/distutils pybsddb from bsddb3 import db, dbshelve except ImportError: # For Python 2.3 from bsddb import db, dbshelve from test_all import verbose #---------------------------------------------------------------------- # We want the objects to be comparable so we can test dbshelve.values # later on. class DataClass: def __init__(self): self.value = random.random() def __cmp__(self, other): return cmp(self.value, other) class DBShelveTestCase(unittest.TestCase): def setUp(self): self.filename = tempfile.mktemp() self.do_open() def tearDown(self): self.do_close() try: os.remove(self.filename) except os.error: pass def mk(self, key): """Turn key into an appropriate key type for this db""" # override in child class for RECNO return key def populateDB(self, d): for x in string.letters: d[self.mk('S' + x)] = 10 * x # add a string d[self.mk('I' + x)] = ord(x) # add an integer d[self.mk('L' + x)] = [x] * 10 # add a list inst = DataClass() # add an instance inst.S = 10 * x inst.I = ord(x) inst.L = [x] * 10 d[self.mk('O' + x)] = inst # overridable in derived classes to affect how the shelf is created/opened def do_open(self): self.d = dbshelve.open(self.filename) # and closed... def do_close(self): self.d.close() def test01_basics(self): if verbose: print '\n', '-=' * 30 print "Running %s.test01_basics..." % self.__class__.__name__ self.populateDB(self.d) self.d.sync() self.do_close() self.do_open() d = self.d l = len(d) k = d.keys() s = d.stat() f = d.fd() if verbose: print "length:", l print "keys:", k print "stats:", s assert 0 == d.has_key(self.mk('bad key')) assert 1 == d.has_key(self.mk('IA')) assert 1 == d.has_key(self.mk('OA')) d.delete(self.mk('IA')) del d[self.mk('OA')] assert 0 == d.has_key(self.mk('IA')) assert 0 == d.has_key(self.mk('OA')) assert len(d) == l-2 values = [] for key in d.keys(): value = d[key] values.append(value) if verbose: print "%s: %s" % (key, value) self.checkrec(key, value) dbvalues = d.values() assert len(dbvalues) == len(d.keys()) values.sort() dbvalues.sort() assert values == dbvalues items = d.items() assert len(items) == len(values) for key, value in items: self.checkrec(key, value) assert d.get(self.mk('bad key')) == None assert d.get(self.mk('bad key'), None) == None assert d.get(self.mk('bad key'), 'a string') == 'a string' assert d.get(self.mk('bad key'), [1, 2, 3]) == [1, 2, 3] d.set_get_returns_none(0) self.assertRaises(db.DBNotFoundError, d.get, self.mk('bad key')) d.set_get_returns_none(1) d.put(self.mk('new key'), 'new data') assert d.get(self.mk('new key')) == 'new data' assert d[self.mk('new key')] == 'new data' def test02_cursors(self): if verbose: print '\n', '-=' * 30 print "Running %s.test02_cursors..." % self.__class__.__name__ self.populateDB(self.d) d = self.d count = 0 c = d.cursor() rec = c.first() while rec is not None: count = count + 1 if verbose: print rec key, value = rec self.checkrec(key, value) rec = c.next() del c assert count == len(d) count = 0 c = d.cursor() rec = c.last() while rec is not None: count = count + 1 if verbose: print rec key, value = rec self.checkrec(key, value) rec = c.prev() assert count == len(d) c.set(self.mk('SS')) key, value = c.current() self.checkrec(key, value) del c def test03_append(self): # NOTE: this is overridden in RECNO subclass, don't change its name. if verbose: print '\n', '-=' * 30 print "Running %s.test03_append..." % self.__class__.__name__ self.assertRaises(dbshelve.DBShelveError, self.d.append, 'unit test was here') def checkrec(self, key, value): # override this in a subclass if the key type is different x = key[1] if key[0] == 'S': assert type(value) == StringType assert value == 10 * x elif key[0] == 'I': assert type(value) == IntType assert value == ord(x) elif key[0] == 'L': assert type(value) == ListType assert value == [x] * 10 elif key[0] == 'O': assert type(value) == InstanceType assert value.S == 10 * x assert value.I == ord(x) assert value.L == [x] * 10 else: raise AssertionError, 'Unknown key type, fix the test' #---------------------------------------------------------------------- class BasicShelveTestCase(DBShelveTestCase): def do_open(self): self.d = dbshelve.DBShelf() self.d.open(self.filename, self.dbtype, self.dbflags) def do_close(self): self.d.close() class BTreeShelveTestCase(BasicShelveTestCase): dbtype = db.DB_BTREE dbflags = db.DB_CREATE class HashShelveTestCase(BasicShelveTestCase): dbtype = db.DB_HASH dbflags = db.DB_CREATE class ThreadBTreeShelveTestCase(BasicShelveTestCase): dbtype = db.DB_BTREE dbflags = db.DB_CREATE | db.DB_THREAD class ThreadHashShelveTestCase(BasicShelveTestCase): dbtype = db.DB_HASH dbflags = db.DB_CREATE | db.DB_THREAD #---------------------------------------------------------------------- class BasicEnvShelveTestCase(DBShelveTestCase): def do_open(self): self.homeDir = homeDir = os.path.join( tempfile.gettempdir(), 'db_home') try: os.mkdir(homeDir) except os.error: pass self.env = db.DBEnv() self.env.open(homeDir, self.envflags | db.DB_INIT_MPOOL | db.DB_CREATE) self.filename = os.path.split(self.filename)[1] self.d = dbshelve.DBShelf(self.env) self.d.open(self.filename, self.dbtype, self.dbflags) def do_close(self): self.d.close() self.env.close() def tearDown(self): self.do_close() import glob files = glob.glob(os.path.join(self.homeDir, '*')) for file in files: os.remove(file) class EnvBTreeShelveTestCase(BasicEnvShelveTestCase): envflags = 0 dbtype = db.DB_BTREE dbflags = db.DB_CREATE class EnvHashShelveTestCase(BasicEnvShelveTestCase): envflags = 0 dbtype = db.DB_HASH dbflags = db.DB_CREATE class EnvThreadBTreeShelveTestCase(BasicEnvShelveTestCase): envflags = db.DB_THREAD dbtype = db.DB_BTREE dbflags = db.DB_CREATE | db.DB_THREAD class EnvThreadHashShelveTestCase(BasicEnvShelveTestCase): envflags = db.DB_THREAD dbtype = db.DB_HASH dbflags = db.DB_CREATE | db.DB_THREAD #---------------------------------------------------------------------- # test cases for a DBShelf in a RECNO DB. class RecNoShelveTestCase(BasicShelveTestCase): dbtype = db.DB_RECNO dbflags = db.DB_CREATE def setUp(self): BasicShelveTestCase.setUp(self) # pool to assign integer key values out of self.key_pool = list(range(1, 5000)) self.key_map = {} # map string keys to the number we gave them self.intkey_map = {} # reverse map of above def mk(self, key): if key not in self.key_map: self.key_map[key] = self.key_pool.pop(0) self.intkey_map[self.key_map[key]] = key return self.key_map[key] def checkrec(self, intkey, value): key = self.intkey_map[intkey] BasicShelveTestCase.checkrec(self, key, value) def test03_append(self): if verbose: print '\n', '-=' * 30 print "Running %s.test03_append..." % self.__class__.__name__ self.d[1] = 'spam' self.d[5] = 'eggs' self.assertEqual(6, self.d.append('spam')) self.assertEqual(7, self.d.append('baked beans')) self.assertEqual('spam', self.d.get(6)) self.assertEqual('spam', self.d.get(1)) self.assertEqual('baked beans', self.d.get(7)) self.assertEqual('eggs', self.d.get(5)) #---------------------------------------------------------------------- def test_suite(): suite = unittest.TestSuite() suite.addTest(unittest.makeSuite(DBShelveTestCase)) suite.addTest(unittest.makeSuite(BTreeShelveTestCase)) suite.addTest(unittest.makeSuite(HashShelveTestCase)) suite.addTest(unittest.makeSuite(ThreadBTreeShelveTestCase)) suite.addTest(unittest.makeSuite(ThreadHashShelveTestCase)) suite.addTest(unittest.makeSuite(EnvBTreeShelveTestCase)) suite.addTest(unittest.makeSuite(EnvHashShelveTestCase)) suite.addTest(unittest.makeSuite(EnvThreadBTreeShelveTestCase)) suite.addTest(unittest.makeSuite(EnvThreadHashShelveTestCase)) suite.addTest(unittest.makeSuite(RecNoShelveTestCase)) return suite if __name__ == '__main__': unittest.main(defaultTest='test_suite')