def test_locked_timeoutbug(self):
lock = FileLock(engine.LOCK_PATH)
lock.unique_name = 'mailer-test'
lock.acquire()
# We want to emulate the lock acquiring taking no time, so the next
# three calls to time.time() always return 0 (then set it back to the
# real function).
original_time = time.time
global time_call_count
time_call_count = 0
def fake_time():
global time_call_count
time_call_count = time_call_count + 1
if time_call_count >= 3:
time.time = original_time
return 0
time.time = fake_time
try:
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
finally:
lock.release()
time.time = original_time
def setUp(self):
# Create somewhere to store the log debug output.
self.output = StringIO()
# Create a log handler which can capture the log debug output.
self.handler = logging.StreamHandler(self.output)
self.handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(message)s')
self.handler.setFormatter(formatter)
# Add the log handler.
logger = logging.getLogger('django_mailer')
logger.addHandler(self.handler)
# Set the LOCK_WAIT_TIMEOUT to the default value.
self.original_timeout = settings.LOCK_WAIT_TIMEOUT
settings.LOCK_WAIT_TIMEOUT = 0
# Use a test lock-file name in case something goes wrong, then emulate
# that the lock file has already been acquired by another process.
self.original_lock_path = engine.LOCK_PATH
engine.LOCK_PATH += '.mailer-test'
self.lock = FileLock(engine.LOCK_PATH)
self.lock.unique_name += '.mailer_test'
self.lock.acquire(0)
def test_locked(self):
# Acquire the lock (under a different unique name) so that send_all
# will fail.
lock = FileLock(engine.LOCK_PATH)
lock.unique_name = 'mailer-test'
lock.acquire()
try:
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
# Try with a timeout.
settings.LOCK_WAIT_TIMEOUT = .1
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Waiting for the lock timed out. Exiting.')
finally:
# Always release the test lock.
lock.release()
class LockTest(TestCase):
"""
Tests for Django Mailer trying to send mail when the lock is already in
place.
"""
def setUp(self):
# Create somewhere to store the log debug output.
self.output = StringIO()
# Create a log handler which can capture the log debug output.
self.handler = logging.StreamHandler(self.output)
self.handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(message)s')
self.handler.setFormatter(formatter)
# Add the log handler.
logger = logging.getLogger('django_mailer')
logger.addHandler(self.handler)
# Set the LOCK_WAIT_TIMEOUT to the default value.
self.original_timeout = settings.LOCK_WAIT_TIMEOUT
settings.LOCK_WAIT_TIMEOUT = 0
# Use a test lock-file name in case something goes wrong, then emulate
# that the lock file has already been acquired by another process.
self.original_lock_path = engine.LOCK_PATH
engine.LOCK_PATH += '.mailer-test'
self.lock = FileLock(engine.LOCK_PATH)
self.lock.unique_name += '.mailer_test'
self.lock.acquire(0)
def tearDown(self):
# Remove the log handler.
logger = logging.getLogger('django_mailer')
logger.removeHandler(self.handler)
# Revert the LOCK_WAIT_TIMEOUT to it's original value.
settings.LOCK_WAIT_TIMEOUT = self.original_timeout
# Revert the lock file unique name
engine.LOCK_PATH = self.original_lock_path
self.lock.release()
def test_locked(self):
# Acquire the lock so that send_all will fail.
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
# Try with a timeout.
settings.LOCK_WAIT_TIMEOUT = .1
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Waiting for the lock timed out. Exiting.')
def test_locked_timeoutbug(self):
# We want to emulate the lock acquiring taking no time, so the next
# three calls to time.time() always return 0 (then set it back to the
# real function).
original_time = time.time
global time_call_count
time_call_count = 0
def fake_time():
global time_call_count
time_call_count = time_call_count + 1
if time_call_count >= 3:
time.time = original_time
return 0
time.time = fake_time
try:
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
finally:
time.time = original_time
class LockTest(TestCase):
"""
Tests for Django Mailer trying to send mail when the lock is already in
place.
"""
def setUp(self):
# Create somewhere to store the log debug output.
self.output = StringIO()
# Create a log handler which can capture the log debug output.
self.handler = logging.StreamHandler(self.output)
self.handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(message)s')
self.handler.setFormatter(formatter)
# Add the log handler.
logger = logging.getLogger('django_mailer')
logger.addHandler(self.handler)
# Set the LOCK_WAIT_TIMEOUT to the default value.
self.original_timeout = settings.LOCK_WAIT_TIMEOUT
settings.LOCK_WAIT_TIMEOUT = 0
# Use a test lock-file name in case something goes wrong, then emulate
# that the lock file has already been acquired by another process.
self.original_lock_path = engine.LOCK_PATH
engine.LOCK_PATH += '.mailer-test'
self.lock = FileLock(engine.LOCK_PATH)
self.lock.unique_name += '.mailer_test'
self.lock.acquire(0)
def tearDown(self):
# Remove the log handler.
logger = logging.getLogger('django_mailer')
logger.removeHandler(self.handler)
# Revert the LOCK_WAIT_TIMEOUT to it's original value.
settings.LOCK_WAIT_TIMEOUT = self.original_timeout
# Revert the lock file unique name
engine.LOCK_PATH = self.original_lock_path
self.lock.release()
def test_locked(self):
# Acquire the lock so that send_all will fail.
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
# Try with a timeout.
settings.LOCK_WAIT_TIMEOUT = .1
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Waiting for the lock timed out. Exiting.')
def test_locked_timeoutbug(self):
# We want to emulate the lock acquiring taking no time, so the next
# three calls to time.time() always return 0 (then set it back to the
# real function).
original_time = time.time
global time_call_count
time_call_count = 0
def fake_time():
global time_call_count
time_call_count = time_call_count + 1
if time_call_count >= 3:
time.time = original_time
return 0
time.time = fake_time
try:
engine.send_all()
self.output.seek(0)
self.assertEqual(self.output.readlines()[-1].strip(),
'Lock already in place. Exiting.')
finally:
time.time = original_time