def testPersistence(self):
temp_dir = getTempDirectory()
directory = join(temp_dir, 'read_write')
db_file = join(directory, 'db')
mkdir(directory)
try:
db = MasterDB(db_file)
self.assertTrue(exists(db_file), db_file)
address = ('example.com', 1024)
db.add(address)
address2 = ('example.org', 1024)
db.add(address2)
# Values are visible to a new db instance
db2 = MasterDB(db_file)
self.assertTrue(address in db2, [x for x in db2])
self.assertTrue(address2 in db2, [x for x in db2])
db.discard(address)
# Create yet another instance (file is not supposed to be shared)
db3 = MasterDB(db_file)
self.assertFalse(address in db3, [x for x in db3])
self.assertTrue(address2 in db3, [x for x in db3])
finally:
if exists(db_file):
unlink(db_file)
rmdir(directory)
def testPersistence(self):
temp_dir = getTempDirectory()
directory = join(temp_dir, 'read_write')
db_file = join(directory, 'db')
mkdir(directory)
try:
db = MasterDB(db_file)
self.assertTrue(exists(db_file), db_file)
address = ('example.com', 1024)
db.add(address)
address2 = ('example.org', 1024)
db.add(address2)
# Values are visible to a new db instance
db2 = MasterDB(db_file)
self.assertTrue(address in db2, [x for x in db2])
self.assertTrue(address2 in db2, [x for x in db2])
db.discard(address)
# Create yet another instance (file is not supposed to be shared)
db3 = MasterDB(db_file)
self.assertFalse(address in db3, [x for x in db3])
self.assertTrue(address2 in db3, [x for x in db3])
finally:
if exists(db_file):
unlink(db_file)
rmdir(directory)
def testLaterAccessRights(self):
"""
Verify MasterDB does not raise when modifying database.
"""
temp_dir = getTempDirectory()
directory = join(temp_dir, 'read_write')
db_file = join(directory, 'db')
mkdir(directory)
try:
db = MasterDB(db_file)
self.assertTrue(exists(db_file), db_file)
chmod(db_file, 0400)
address = ('example.com', 1024)
# Must not raise
db.add(address)
# Value is stored
self.assertTrue(address in db, [x for x in db])
# But not visible to a new db instance (write access restored so
# it can be created)
chmod(db_file, 0600)
db2 = MasterDB(db_file)
self.assertFalse(address in db2, [x for x in db2])
finally:
if exists(db_file):
unlink(db_file)
rmdir(directory)
def testLaterAccessRights(self):
"""
Verify MasterDB does not raise when modifying database.
"""
temp_dir = getTempDirectory()
directory = join(temp_dir, 'read_write')
db_file = join(directory, 'db')
mkdir(directory)
try:
db = MasterDB(db_file)
self.assertTrue(exists(db_file), db_file)
chmod(db_file, 0400)
address = ('example.com', 1024)
# Must not raise
db.add(address)
# Value is stored
self.assertTrue(address in db, [x for x in db])
# But not visible to a new db instance (write access restored so
# it can be created)
chmod(db_file, 0600)
db2 = MasterDB(db_file)
self.assertFalse(address in db2, [x for x in db2])
finally:
if exists(db_file):
unlink(db_file)
rmdir(directory)