""" Basic TestCases for BTree and hash DBs, with and without a DBEnv, with various DB flags, etc. """ import os import sys import errno import shutil import string import tempfile from pprint import pprint import unittest import time try: # For Pythons w/distutils pybsddb from bsddb3 import db except ImportError: # For Python 2.3 from bsddb import db from .test_all import verbose DASH = '-' #---------------------------------------------------------------------- class VersionTestCase(unittest.TestCase): def test00_version(self): info = db.version() if verbose: print('\n', '-=' * 20) print('bsddb.db.version(): %s' % (info, )) print(db.DB_VERSION_STRING) print('-=' * 20) assert info == (db.DB_VERSION_MAJOR, db.DB_VERSION_MINOR, db.DB_VERSION_PATCH) #---------------------------------------------------------------------- class BasicTestCase(unittest.TestCase): dbtype = db.DB_UNKNOWN # must be set in derived class dbopenflags = 0 dbsetflags = 0 dbmode = 0660 dbname = None useEnv = 0 envflags = 0 envsetflags = 0 _numKeys = 1002 # PRIVATE. NOTE: must be an even value def setUp(self): if self.useEnv: homeDir = os.path.join(tempfile.gettempdir(), 'db_home') self.homeDir = homeDir try: shutil.rmtree(homeDir) except OSError as e: # unix returns ENOENT, windows returns ESRCH if e.errno not in (errno.ENOENT, errno.ESRCH): raise os.mkdir(homeDir) try: self.env = db.DBEnv() self.env.set_lg_max(1024*1024) self.env.set_tx_max(30) self.env.set_tx_timestamp(int(time.time())) self.env.set_flags(self.envsetflags, 1) self.env.open(homeDir, self.envflags | db.DB_CREATE) tempfile.tempdir = homeDir self.filename = os.path.split(tempfile.mktemp())[1] tempfile.tempdir = None # Yes, a bare except is intended, since we're re-raising the exc. except: shutil.rmtree(homeDir) raise else: self.env = None self.filename = tempfile.mktemp() # create and open the DB self.d = db.DB(self.env) self.d.set_flags(self.dbsetflags) if self.dbname: self.d.open(self.filename, self.dbname, self.dbtype, self.dbopenflags|db.DB_CREATE, self.dbmode) else: self.d.open(self.filename, # try out keyword args mode = self.dbmode, dbtype = self.dbtype, flags = self.dbopenflags|db.DB_CREATE) self.populateDB() def tearDown(self): self.d.close() if self.env is not None: self.env.close() shutil.rmtree(self.homeDir) ## Make a new DBEnv to remove the env files from the home dir. ## (It can't be done while the env is open, nor after it has been ## closed, so we make a new one to do it.) #e = db.DBEnv() #e.remove(self.homeDir) #os.remove(os.path.join(self.homeDir, self.filename)) else: os.remove(self.filename) def populateDB(self, _txn=None): d = self.d for x in range(self._numKeys//2): key = '%04d' % (self._numKeys - x) # insert keys in reverse order data = self.makeData(key) d.put(key, data, _txn) d.put('empty value', '', _txn) for x in range(self._numKeys//2-1): key = '%04d' % x # and now some in forward order data = self.makeData(key) d.put(key, data, _txn) if _txn: _txn.commit() num = len(d) if verbose: print("created %d records" % num) def makeData(self, key): return DASH.join([key] * 5) #---------------------------------------- def test01_GetsAndPuts(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test01_GetsAndPuts..." % self.__class__.__name__) for key in ['0001', '0100', '0400', '0700', '0999']: data = d.get(key) if verbose: print(data) assert d.get('0321') == '0321-0321-0321-0321-0321' # By default non-existant keys return None... assert d.get('abcd') == None # ...but they raise exceptions in other situations. Call # set_get_returns_none() to change it. try: d.delete('abcd') except db.DBNotFoundError as val: assert val.args[0] == db.DB_NOTFOUND if verbose: print(val) else: self.fail("expected exception") d.put('abcd', 'a new record') assert d.get('abcd') == 'a new record' d.put('abcd', 'same key') if self.dbsetflags & db.DB_DUP: assert d.get('abcd') == 'a new record' else: assert d.get('abcd') == 'same key' try: d.put('abcd', 'this should fail', flags=db.DB_NOOVERWRITE) except db.DBKeyExistError as val: assert val.args[0] == db.DB_KEYEXIST if verbose: print(val) else: self.fail("expected exception") if self.dbsetflags & db.DB_DUP: assert d.get('abcd') == 'a new record' else: assert d.get('abcd') == 'same key' d.sync() d.close() del d self.d = db.DB(self.env) if self.dbname: self.d.open(self.filename, self.dbname) else: self.d.open(self.filename) d = self.d assert d.get('0321') == '0321-0321-0321-0321-0321' if self.dbsetflags & db.DB_DUP: assert d.get('abcd') == 'a new record' else: assert d.get('abcd') == 'same key' rec = d.get_both('0555', '0555-0555-0555-0555-0555') if verbose: print(rec) assert d.get_both('0555', 'bad data') == None # test default value data = d.get('bad key', 'bad data') assert data == 'bad data' # any object can pass through data = d.get('bad key', self) assert data == self s = d.stat() assert type(s) == type({}) if verbose: print('d.stat() returned this dictionary:') pprint(s) #---------------------------------------- def test02_DictionaryMethods(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test02_DictionaryMethods..." % \ self.__class__.__name__) for key in ['0002', '0101', '0401', '0701', '0998']: data = d[key] assert data == self.makeData(key) if verbose: print(data) assert len(d) == self._numKeys keys = d.keys() assert len(keys) == self._numKeys assert type(keys) == type([]) d['new record'] = 'a new record' assert len(d) == self._numKeys+1 keys = d.keys() assert len(keys) == self._numKeys+1 d['new record'] = 'a replacement record' assert len(d) == self._numKeys+1 keys = d.keys() assert len(keys) == self._numKeys+1 if verbose: print("the first 10 keys are:") pprint(keys[:10]) assert d['new record'] == 'a replacement record' assert d.has_key('0001') == 1 assert d.has_key('spam') == 0 items = d.items() assert len(items) == self._numKeys+1 assert type(items) == type([]) assert type(items[0]) == type(()) assert len(items[0]) == 2 if verbose: print("the first 10 items are:") pprint(items[:10]) values = d.values() assert len(values) == self._numKeys+1 assert type(values) == type([]) if verbose: print("the first 10 values are:") pprint(values[:10]) #---------------------------------------- def test03_SimpleCursorStuff(self, get_raises_error=0, set_raises_error=0): if verbose: print('\n', '-=' * 30) print("Running %s.test03_SimpleCursorStuff (get_error %s, set_error %s)..." % \ (self.__class__.__name__, get_raises_error, set_raises_error)) if self.env and self.dbopenflags & db.DB_AUTO_COMMIT: txn = self.env.txn_begin() else: txn = None c = self.d.cursor(txn=txn) rec = c.first() count = 0 while rec is not None: count = count + 1 if verbose and count % 100 == 0: print(rec) try: rec = c.next() except db.DBNotFoundError as val: if get_raises_error: assert val.args[0] == db.DB_NOTFOUND if verbose: print(val) rec = None else: self.fail("unexpected DBNotFoundError") assert c.get_current_size() == len(c.current()[1]), "%s != len(%r)" % (c.get_current_size(), c.current()[1]) assert count == self._numKeys rec = c.last() count = 0 while rec is not None: count = count + 1 if verbose and count % 100 == 0: print(rec) try: rec = c.prev() except db.DBNotFoundError as val: if get_raises_error: assert val.args[0] == db.DB_NOTFOUND if verbose: print(val) rec = None else: self.fail("unexpected DBNotFoundError") assert count == self._numKeys rec = c.set('0505') rec2 = c.current() assert rec == rec2 assert rec[0] == '0505' assert rec[1] == self.makeData('0505') assert c.get_current_size() == len(rec[1]) # make sure we get empty values properly rec = c.set('empty value') assert rec[1] == '' assert c.get_current_size() == 0 try: n = c.set('bad key') except db.DBNotFoundError as val: assert val.args[0] == db.DB_NOTFOUND if verbose: print(val) else: if set_raises_error: self.fail("expected exception") if n != None: self.fail("expected None: %r" % (n,)) rec = c.get_both('0404', self.makeData('0404')) assert rec == ('0404', self.makeData('0404')) try: n = c.get_both('0404', 'bad data') except db.DBNotFoundError as val: assert val.args[0] == db.DB_NOTFOUND if verbose: print(val) else: if get_raises_error: self.fail("expected exception") if n != None: self.fail("expected None: %r" % (n,)) if self.d.get_type() == db.DB_BTREE: rec = c.set_range('011') if verbose: print("searched for '011', found: ", rec) rec = c.set_range('011',dlen=0,doff=0) if verbose: print("searched (partial) for '011', found: ", rec) if rec[1] != '': self.fail('expected empty data portion') ev = c.set_range('empty value') if verbose: print("search for 'empty value' returned", ev) if ev[1] != '': self.fail('empty value lookup failed') c.set('0499') c.delete() try: rec = c.current() except db.DBKeyEmptyError as val: if get_raises_error: assert val.args[0] == db.DB_KEYEMPTY if verbose: print(val) else: self.fail("unexpected DBKeyEmptyError") else: if get_raises_error: self.fail('DBKeyEmptyError exception expected') c.next() c2 = c.dup(db.DB_POSITION) assert c.current() == c2.current() c2.put('', 'a new value', db.DB_CURRENT) assert c.current() == c2.current() assert c.current()[1] == 'a new value' c2.put('', 'er', db.DB_CURRENT, dlen=0, doff=5) assert c2.current()[1] == 'a newer value' c.close() c2.close() if txn: txn.commit() # time to abuse the closed cursors and hope we don't crash methods_to_test = { 'current': (), 'delete': (), 'dup': (db.DB_POSITION,), 'first': (), 'get': (0,), 'next': (), 'prev': (), 'last': (), 'put':('', 'spam', db.DB_CURRENT), 'set': ("0505",), } for method, args in methods_to_test.items(): try: if verbose: print("attempting to use a closed cursor's %s method" % \ method) # a bug may cause a NULL pointer dereference... getattr(c, method)(*args) except db.DBError as val: assert val.args[0] == 0 if verbose: print(val) else: self.fail("no exception raised when using a buggy cursor's" "%s method" % method) # # free cursor referencing a closed database, it should not barf: # oldcursor = self.d.cursor(txn=txn) self.d.close() # this would originally cause a segfault when the cursor for a # closed database was cleaned up. it should not anymore. # SF pybsddb bug id 667343 del oldcursor def test03b_SimpleCursorWithoutGetReturnsNone0(self): # same test but raise exceptions instead of returning None if verbose: print('\n', '-=' * 30) print("Running %s.test03b_SimpleCursorStuffWithoutGetReturnsNone..." % \ self.__class__.__name__) old = self.d.set_get_returns_none(0) assert old == 2 self.test03_SimpleCursorStuff(get_raises_error=1, set_raises_error=1) def test03b_SimpleCursorWithGetReturnsNone1(self): # same test but raise exceptions instead of returning None if verbose: print('\n', '-=' * 30) print("Running %s.test03b_SimpleCursorStuffWithoutGetReturnsNone..." % \ self.__class__.__name__) old = self.d.set_get_returns_none(1) self.test03_SimpleCursorStuff(get_raises_error=0, set_raises_error=1) def test03c_SimpleCursorGetReturnsNone2(self): # same test but raise exceptions instead of returning None if verbose: print('\n', '-=' * 30) print("Running %s.test03c_SimpleCursorStuffWithoutSetReturnsNone..." % \ self.__class__.__name__) old = self.d.set_get_returns_none(1) assert old == 2 old = self.d.set_get_returns_none(2) assert old == 1 self.test03_SimpleCursorStuff(get_raises_error=0, set_raises_error=0) #---------------------------------------- def test04_PartialGetAndPut(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test04_PartialGetAndPut..." % \ self.__class__.__name__) key = "partialTest" data = "1" * 1000 + "2" * 1000 d.put(key, data) assert d.get(key) == data assert d.get(key, dlen=20, doff=990) == ("1" * 10) + ("2" * 10) d.put("partialtest2", ("1" * 30000) + "robin" ) assert d.get("partialtest2", dlen=5, doff=30000) == "robin" # There seems to be a bug in DB here... Commented out the test for # now. ##assert d.get("partialtest2", dlen=5, doff=30010) == "" if self.dbsetflags != db.DB_DUP: # Partial put with duplicate records requires a cursor d.put(key, "0000", dlen=2000, doff=0) assert d.get(key) == "0000" d.put(key, "1111", dlen=1, doff=2) assert d.get(key) == "0011110" #---------------------------------------- def test05_GetSize(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test05_GetSize..." % self.__class__.__name__) for i in range(1, 50000, 500): key = "size%s" % i #print "before ", i, d.put(key, "1" * i) #print "after", assert d.get_size(key) == i #print "done" #---------------------------------------- def test06_Truncate(self): if db.version() < (3,3): # truncate is a feature of BerkeleyDB 3.3 and above return d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test99_Truncate..." % self.__class__.__name__) d.put("abcde", "ABCDE"); num = d.truncate() assert num >= 1, "truncate returned <= 0 on non-empty database" num = d.truncate() assert num == 0, "truncate on empty DB returned nonzero (%r)" % (num,) #---------------------------------------- #---------------------------------------------------------------------- class BasicBTreeTestCase(BasicTestCase): dbtype = db.DB_BTREE class BasicHashTestCase(BasicTestCase): dbtype = db.DB_HASH class BasicBTreeWithThreadFlagTestCase(BasicTestCase): dbtype = db.DB_BTREE dbopenflags = db.DB_THREAD class BasicHashWithThreadFlagTestCase(BasicTestCase): dbtype = db.DB_HASH dbopenflags = db.DB_THREAD class BasicWithEnvTestCase(BasicTestCase): dbopenflags = db.DB_THREAD useEnv = 1 envflags = db.DB_THREAD | db.DB_INIT_MPOOL | db.DB_INIT_LOCK #---------------------------------------- def test07_EnvRemoveAndRename(self): if not self.env: return if verbose: print('\n', '-=' * 30) print("Running %s.test07_EnvRemoveAndRename..." % self.__class__.__name__) # can't rename or remove an open DB self.d.close() newname = self.filename + '.renamed' self.env.dbrename(self.filename, None, newname) self.env.dbremove(newname) # dbremove and dbrename are in 4.1 and later if db.version() < (4,1): del test07_EnvRemoveAndRename #---------------------------------------- class BasicBTreeWithEnvTestCase(BasicWithEnvTestCase): dbtype = db.DB_BTREE class BasicHashWithEnvTestCase(BasicWithEnvTestCase): dbtype = db.DB_HASH #---------------------------------------------------------------------- class BasicTransactionTestCase(BasicTestCase): dbopenflags = db.DB_THREAD | db.DB_AUTO_COMMIT useEnv = 1 envflags = (db.DB_THREAD | db.DB_INIT_MPOOL | db.DB_INIT_LOCK | db.DB_INIT_TXN) envsetflags = db.DB_AUTO_COMMIT def tearDown(self): self.txn.commit() BasicTestCase.tearDown(self) def populateDB(self): txn = self.env.txn_begin() BasicTestCase.populateDB(self, _txn=txn) self.txn = self.env.txn_begin() def test06_Transactions(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test06_Transactions..." % self.__class__.__name__) assert d.get('new rec', txn=self.txn) == None d.put('new rec', 'this is a new record', self.txn) assert d.get('new rec', txn=self.txn) == 'this is a new record' self.txn.abort() assert d.get('new rec') == None self.txn = self.env.txn_begin() assert d.get('new rec', txn=self.txn) == None d.put('new rec', 'this is a new record', self.txn) assert d.get('new rec', txn=self.txn) == 'this is a new record' self.txn.commit() assert d.get('new rec') == 'this is a new record' self.txn = self.env.txn_begin() c = d.cursor(self.txn) rec = c.first() count = 0 while rec is not None: count = count + 1 if verbose and count % 100 == 0: print(rec) rec = c.next() assert count == self._numKeys+1 c.close() # Cursors *MUST* be closed before commit! self.txn.commit() # flush pending updates try: self.env.txn_checkpoint (0, 0, 0) except db.DBIncompleteError: pass if db.version() >= (4,0): statDict = self.env.log_stat(0); assert 'magic' in statDict assert 'version' in statDict assert 'cur_file' in statDict assert 'region_nowait' in statDict # must have at least one log file present: logs = self.env.log_archive(db.DB_ARCH_ABS | db.DB_ARCH_LOG) assert logs != None for log in logs: if verbose: print('log file: ' + log) if db.version() >= (4,2): logs = self.env.log_archive(db.DB_ARCH_REMOVE) assert not logs self.txn = self.env.txn_begin() #---------------------------------------- def test07_TxnTruncate(self): if db.version() < (3,3): # truncate is a feature of BerkeleyDB 3.3 and above return d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test07_TxnTruncate..." % self.__class__.__name__) d.put("abcde", "ABCDE"); txn = self.env.txn_begin() num = d.truncate(txn) assert num >= 1, "truncate returned <= 0 on non-empty database" num = d.truncate(txn) assert num == 0, "truncate on empty DB returned nonzero (%r)" % (num,) txn.commit() #---------------------------------------- def test08_TxnLateUse(self): txn = self.env.txn_begin() txn.abort() try: txn.abort() except db.DBError as e: pass else: raise RuntimeError, "DBTxn.abort() called after DB_TXN no longer valid w/o an exception" txn = self.env.txn_begin() txn.commit() try: txn.commit() except db.DBError as e: pass else: raise RuntimeError, "DBTxn.commit() called after DB_TXN no longer valid w/o an exception" class BTreeTransactionTestCase(BasicTransactionTestCase): dbtype = db.DB_BTREE class HashTransactionTestCase(BasicTransactionTestCase): dbtype = db.DB_HASH #---------------------------------------------------------------------- class BTreeRecnoTestCase(BasicTestCase): dbtype = db.DB_BTREE dbsetflags = db.DB_RECNUM def test07_RecnoInBTree(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test07_RecnoInBTree..." % self.__class__.__name__) rec = d.get(200) assert type(rec) == type(()) assert len(rec) == 2 if verbose: print("Record #200 is ", rec) c = d.cursor() c.set('0200') num = c.get_recno() assert type(num) == type(1) if verbose: print("recno of d['0200'] is ", num) rec = c.current() assert c.set_recno(num) == rec c.close() class BTreeRecnoWithThreadFlagTestCase(BTreeRecnoTestCase): dbopenflags = db.DB_THREAD #---------------------------------------------------------------------- class BasicDUPTestCase(BasicTestCase): dbsetflags = db.DB_DUP def test08_DuplicateKeys(self): d = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test08_DuplicateKeys..." % \ self.__class__.__name__) d.put("dup0", "before") for x in "The quick brown fox jumped over the lazy dog.".split(): d.put("dup1", x) d.put("dup2", "after") data = d.get("dup1") assert data == "The" if verbose: print(data) c = d.cursor() rec = c.set("dup1") assert rec == ('dup1', 'The') next = c.next() assert next == ('dup1', 'quick') rec = c.set("dup1") count = c.count() assert count == 9 next_dup = c.next_dup() assert next_dup == ('dup1', 'quick') rec = c.set('dup1') while rec is not None: if verbose: print(rec) rec = c.next_dup() c.set('dup1') rec = c.next_nodup() assert rec[0] != 'dup1' if verbose: print(rec) c.close() class BTreeDUPTestCase(BasicDUPTestCase): dbtype = db.DB_BTREE class HashDUPTestCase(BasicDUPTestCase): dbtype = db.DB_HASH class BTreeDUPWithThreadTestCase(BasicDUPTestCase): dbtype = db.DB_BTREE dbopenflags = db.DB_THREAD class HashDUPWithThreadTestCase(BasicDUPTestCase): dbtype = db.DB_HASH dbopenflags = db.DB_THREAD #---------------------------------------------------------------------- class BasicMultiDBTestCase(BasicTestCase): dbname = 'first' def otherType(self): if self.dbtype == db.DB_BTREE: return db.DB_HASH else: return db.DB_BTREE def test09_MultiDB(self): d1 = self.d if verbose: print('\n', '-=' * 30) print("Running %s.test09_MultiDB..." % self.__class__.__name__) d2 = db.DB(self.env) d2.open(self.filename, "second", self.dbtype, self.dbopenflags|db.DB_CREATE) d3 = db.DB(self.env) d3.open(self.filename, "third", self.otherType(), self.dbopenflags|db.DB_CREATE) for x in "The quick brown fox jumped over the lazy dog".split(): d2.put(x, self.makeData(x)) for x in string.letters: d3.put(x, x*70) d1.sync() d2.sync() d3.sync() d1.close() d2.close() d3.close() self.d = d1 = d2 = d3 = None self.d = d1 = db.DB(self.env) d1.open(self.filename, self.dbname, flags = self.dbopenflags) d2 = db.DB(self.env) d2.open(self.filename, "second", flags = self.dbopenflags) d3 = db.DB(self.env) d3.open(self.filename, "third", flags = self.dbopenflags) c1 = d1.cursor() c2 = d2.cursor() c3 = d3.cursor() count = 0 rec = c1.first() while rec is not None: count = count + 1 if verbose and (count % 50) == 0: print(rec) rec = c1.next() assert count == self._numKeys count = 0 rec = c2.first() while rec is not None: count = count + 1 if verbose: print(rec) rec = c2.next() assert count == 9 count = 0 rec = c3.first() while rec is not None: count = count + 1 if verbose: print(rec) rec = c3.next() assert count == 52 c1.close() c2.close() c3.close() d2.close() d3.close() # Strange things happen if you try to use Multiple DBs per file without a # DBEnv with MPOOL and LOCKing... class BTreeMultiDBTestCase(BasicMultiDBTestCase): dbtype = db.DB_BTREE dbopenflags = db.DB_THREAD useEnv = 1 envflags = db.DB_THREAD | db.DB_INIT_MPOOL | db.DB_INIT_LOCK class HashMultiDBTestCase(BasicMultiDBTestCase): dbtype = db.DB_HASH dbopenflags = db.DB_THREAD useEnv = 1 envflags = db.DB_THREAD | db.DB_INIT_MPOOL | db.DB_INIT_LOCK #---------------------------------------------------------------------- #---------------------------------------------------------------------- def test_suite(): suite = unittest.TestSuite() suite.addTest(unittest.makeSuite(VersionTestCase)) suite.addTest(unittest.makeSuite(BasicBTreeTestCase)) suite.addTest(unittest.makeSuite(BasicHashTestCase)) suite.addTest(unittest.makeSuite(BasicBTreeWithThreadFlagTestCase)) suite.addTest(unittest.makeSuite(BasicHashWithThreadFlagTestCase)) suite.addTest(unittest.makeSuite(BasicBTreeWithEnvTestCase)) suite.addTest(unittest.makeSuite(BasicHashWithEnvTestCase)) suite.addTest(unittest.makeSuite(BTreeTransactionTestCase)) suite.addTest(unittest.makeSuite(HashTransactionTestCase)) suite.addTest(unittest.makeSuite(BTreeRecnoTestCase)) suite.addTest(unittest.makeSuite(BTreeRecnoWithThreadFlagTestCase)) suite.addTest(unittest.makeSuite(BTreeDUPTestCase)) suite.addTest(unittest.makeSuite(HashDUPTestCase)) suite.addTest(unittest.makeSuite(BTreeDUPWithThreadTestCase)) suite.addTest(unittest.makeSuite(HashDUPWithThreadTestCase)) suite.addTest(unittest.makeSuite(BTreeMultiDBTestCase)) suite.addTest(unittest.makeSuite(HashMultiDBTestCase)) return suite if __name__ == '__main__': unittest.main(defaultTest='test_suite')