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test_sender.py
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test_sender.py
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# -*- coding: utf-8 -*-
from __future__ import print_function
import errno
import socket
import sys
import unittest
from shutil import rmtree
from tempfile import mkdtemp
import msgpack
import fluent.sender
from tests import mockserver
class TestSetup(unittest.TestCase):
def tearDown(self):
from fluent.sender import _set_global_sender
_set_global_sender(None)
def test_no_kwargs(self):
fluent.sender.setup("tag")
actual = fluent.sender.get_global_sender()
self.assertEqual(actual.tag, "tag")
self.assertEqual(actual.host, "localhost")
self.assertEqual(actual.port, 24224)
self.assertEqual(actual.timeout, 3.0)
def test_host_and_port(self):
fluent.sender.setup("tag", host="myhost", port=24225)
actual = fluent.sender.get_global_sender()
self.assertEqual(actual.tag, "tag")
self.assertEqual(actual.host, "myhost")
self.assertEqual(actual.port, 24225)
self.assertEqual(actual.timeout, 3.0)
def test_tolerant(self):
fluent.sender.setup("tag", host="myhost", port=24225, timeout=1.0)
actual = fluent.sender.get_global_sender()
self.assertEqual(actual.tag, "tag")
self.assertEqual(actual.host, "myhost")
self.assertEqual(actual.port, 24225)
self.assertEqual(actual.timeout, 1.0)
class TestSender(unittest.TestCase):
def setUp(self):
super(TestSender, self).setUp()
self._server = mockserver.MockRecvServer('localhost')
self._sender = fluent.sender.FluentSender(tag='test',
port=self._server.port)
def tearDown(self):
try:
self._sender.close()
finally:
self._server.close()
def get_data(self):
return self._server.get_received()
def test_simple(self):
sender = self._sender
sender.emit('foo', {'bar': 'baz'})
sender._close()
data = self.get_data()
eq = self.assertEqual
eq(1, len(data))
eq(3, len(data[0]))
eq('test.foo', data[0][0])
eq({'bar': 'baz'}, data[0][2])
self.assertTrue(data[0][1])
self.assertTrue(isinstance(data[0][1], int))
def test_decorator_simple(self):
with self._sender as sender:
sender.emit('foo', {'bar': 'baz'})
data = self.get_data()
eq = self.assertEqual
eq(1, len(data))
eq(3, len(data[0]))
eq('test.foo', data[0][0])
eq({'bar': 'baz'}, data[0][2])
self.assertTrue(data[0][1])
self.assertTrue(isinstance(data[0][1], int))
def test_nanosecond(self):
sender = self._sender
sender.nanosecond_precision = True
sender.emit('foo', {'bar': 'baz'})
sender._close()
data = self.get_data()
eq = self.assertEqual
eq(1, len(data))
eq(3, len(data[0]))
eq('test.foo', data[0][0])
eq({'bar': 'baz'}, data[0][2])
self.assertTrue(isinstance(data[0][1], msgpack.ExtType))
eq(data[0][1].code, 0)
def test_nanosecond_coerce_float(self):
time = 1490061367.8616468906402588
sender = self._sender
sender.nanosecond_precision = True
sender.emit_with_time('foo', time, {'bar': 'baz'})
sender._close()
data = self.get_data()
eq = self.assertEqual
eq(1, len(data))
eq(3, len(data[0]))
eq('test.foo', data[0][0])
eq({'bar': 'baz'}, data[0][2])
self.assertTrue(isinstance(data[0][1], msgpack.ExtType))
eq(data[0][1].code, 0)
eq(data[0][1].data, b'X\xd0\x8873[\xb0*')
def test_no_last_error_on_successful_emit(self):
sender = self._sender
sender.emit('foo', {'bar': 'baz'})
sender._close()
self.assertEqual(sender.last_error, None)
def test_last_error_property(self):
EXCEPTION_MSG = "custom exception for testing last_error property"
self._sender.last_error = socket.error(EXCEPTION_MSG)
self.assertEqual(self._sender.last_error.args[0], EXCEPTION_MSG)
def test_clear_last_error(self):
EXCEPTION_MSG = "custom exception for testing clear_last_error"
self._sender.last_error = socket.error(EXCEPTION_MSG)
self._sender.clear_last_error()
self.assertEqual(self._sender.last_error, None)
self._sender.clear_last_error()
self.assertEqual(self._sender.last_error, None)
def test_emit_error(self):
with self._sender as sender:
sender.emit("blah", {"a": object()})
data = self._server.get_received()
self.assertEqual(len(data), 1)
self.assertEqual(data[0][2]["message"], "Can't output to log")
def test_emit_after_close(self):
with self._sender as sender:
self.assertTrue(sender.emit("blah", {"a": "123"}))
sender.close()
self.assertFalse(sender.emit("blah", {"a": "456"}))
data = self._server.get_received()
self.assertEqual(len(data), 1)
self.assertEqual(data[0][2]["a"], "123")
def test_verbose(self):
with self._sender as sender:
sender.verbose = True
sender.emit('foo', {'bar': 'baz'})
# No assertions here, just making sure there are no exceptions
def test_failure_to_connect(self):
self._server.close()
with self._sender as sender:
sender._send_internal(b"123")
self.assertEqual(sender.pendings, b"123")
self.assertIsNone(sender.socket)
sender._send_internal(b"456")
self.assertEqual(sender.pendings, b"123456")
self.assertIsNone(sender.socket)
sender.pendings = None
overflows = []
def boh(buf):
overflows.append(buf)
def boh_with_error(buf):
raise RuntimeError
sender.buffer_overflow_handler = boh
sender._send_internal(b"0" * sender.bufmax)
self.assertFalse(overflows) # No overflow
sender._send_internal(b"1")
self.assertTrue(overflows)
self.assertEqual(overflows.pop(0), b"0" * sender.bufmax + b"1")
sender.buffer_overflow_handler = None
sender._send_internal(b"0" * sender.bufmax)
sender._send_internal(b"1")
self.assertIsNone(sender.pendings)
sender.buffer_overflow_handler = boh_with_error
sender._send_internal(b"0" * sender.bufmax)
sender._send_internal(b"1")
self.assertIsNone(sender.pendings)
sender._send_internal(b"1")
self.assertFalse(overflows) # No overflow
self.assertEqual(sender.pendings, b"1")
self.assertIsNone(sender.socket)
sender.buffer_overflow_handler = boh
sender.close()
self.assertEqual(overflows.pop(0), b"1")
def test_broken_conn(self):
with self._sender as sender:
sender._send_internal(b"123")
self.assertIsNone(sender.pendings, b"123")
self.assertTrue(sender.socket)
class FakeSocket:
def __init__(self):
self.to = 123
self.send_side_effects = [3, 0, 9]
self.send_idx = 0
self.recv_side_effects = [socket.error(errno.EWOULDBLOCK, "Blah"),
b"this data is going to be ignored",
b"",
socket.error(errno.EWOULDBLOCK, "Blah"),
socket.error(errno.EWOULDBLOCK, "Blah"),
socket.error(errno.EACCES, "This error will never happen"),
]
self.recv_idx = 0
def send(self, bytes_):
try:
v = self.send_side_effects[self.send_idx]
if isinstance(v, Exception):
raise v
if isinstance(v, type) and issubclass(v, Exception):
raise v()
return v
finally:
self.send_idx += 1
def shutdown(self, mode):
pass
def close(self):
pass
def settimeout(self, to):
self.to = to
def gettimeout(self):
return self.to
def recv(self, bufsize, flags):
try:
v = self.recv_side_effects[self.recv_idx]
if isinstance(v, Exception):
raise v
if isinstance(v, type) and issubclass(v, Exception):
raise v()
return v
finally:
self.recv_idx += 1
old_sock = self._sender.socket
sock = FakeSocket()
try:
self._sender.socket = sock
sender.last_error = None
self.assertTrue(sender._send_internal(b"456"))
self.assertFalse(sender.last_error)
self._sender.socket = sock
sender.last_error = None
self.assertFalse(sender._send_internal(b"456"))
self.assertEqual(sender.last_error.errno, errno.EPIPE)
self._sender.socket = sock
sender.last_error = None
self.assertFalse(sender._send_internal(b"456"))
self.assertEqual(sender.last_error.errno, errno.EPIPE)
self._sender.socket = sock
sender.last_error = None
self.assertFalse(sender._send_internal(b"456"))
self.assertEqual(sender.last_error.errno, errno.EACCES)
finally:
self._sender.socket = old_sock
@unittest.skipIf(sys.platform == "win32", "Unix socket not supported")
def test_unix_socket(self):
self.tearDown()
tmp_dir = mkdtemp()
try:
server_file = 'unix://' + tmp_dir + "/tmp.unix"
self._server = mockserver.MockRecvServer(server_file)
self._sender = fluent.sender.FluentSender(tag='test',
host=server_file)
with self._sender as sender:
self.assertTrue(sender.emit('foo', {'bar': 'baz'}))
data = self._server.get_received()
self.assertEqual(len(data), 1)
self.assertEqual(data[0][2], {'bar': 'baz'})
finally:
rmtree(tmp_dir, True)
class TestEventTime(unittest.TestCase):
def test_event_time(self):
time = fluent.sender.EventTime(1490061367.8616468906402588)
self.assertEqual(time.code, 0)
self.assertEqual(time.data, b'X\xd0\x8873[\xb0*')