""" TestCases for checking dbShelve objects. """ import sys, os, string import tempfile, random from pprint import pprint 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 __repr__(self): return "DataClass(%r)" % self.value def __eq__(self, other): value = self.value if isinstance(other, DataClass): other = other.value return value == other def __lt__(self, other): value = self.value if isinstance(other, DataClass): other = other.value return 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 populateDB(self, d): for x in string.letters: d['S' + x] = 10 * x # add a string d['I' + x] = ord(x) # add an integer d['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['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('bad key') assert 1 == d.has_key('IA') assert 1 == d.has_key('OA') d.delete('IA') del d['OA'] assert 0 == d.has_key('IA') assert 0 == d.has_key('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 = sorted(d.values(), key=lambda x: (str(type(x)), x)) assert len(dbvalues) == len(d.keys()) values.sort(key=lambda x: (str(type(x)), x)) assert values == dbvalues, "%r != %r" % (values, dbvalues) items = d.items() assert len(items) == len(values) for key, value in items: self.checkrec(key, value) assert d.get('bad key') == None assert d.get('bad key', None) == None assert d.get('bad key', 'a string') == 'a string' assert d.get('bad key', [1, 2, 3]) == [1, 2, 3] d.set_get_returns_none(0) self.assertRaises(db.DBNotFoundError, d.get, 'bad key') d.set_get_returns_none(1) d.put('new key', 'new data') assert d.get('new key') == 'new data' assert d['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('SS') key, value = c.current() self.checkrec(key, value) del c def checkrec(self, key, value): 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 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( os.path.dirname(sys.argv[0]), '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 #---------------------------------------------------------------------- # TODO: Add test cases for a DBShelf in a RECNO DB. #---------------------------------------------------------------------- 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)) return suite if __name__ == '__main__': unittest.main(defaultTest='test_suite')