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mesh_client_test.py
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mesh_client_test.py
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from __future__ import absolute_import, print_function
import io
from unittest import TestCase, main
import mock
import requests
import signal
import traceback
import sys
from collections import namedtuple
from mesh_client import MeshClient, MeshError, default_ssl_opts, CombineStreams, LOCAL_MOCK_ENDPOINT
from mesh_client.mock_server import MockMeshApplication, MockMeshChunkRetryApplication, SlowMockMeshApplication
from six.moves.urllib.error import HTTPError
alice_mailbox = 'alice'
alice_password = 'password'
bob_mailbox = 'bob'
bob_password = 'password'
class MockResponse:
def __init__(self, json_data, status_code):
self.json_data = json_data
self.status_code = status_code
def json(self):
return self.json_data
def print_stack_frames(signum=None, frame=None):
for frame in sys._current_frames().values():
traceback.print_stack(frame)
print()
signal.signal(signal.SIGUSR1, print_stack_frames)
class TestError(Exception):
pass
class MeshClientTest(TestCase):
def run(self, result=None):
try:
with MockMeshApplication() as mock_app:
self.mock_app = mock_app
self.uri = mock_app.uri
with MeshClient(
self.uri,
alice_mailbox,
alice_password,
max_chunk_size=5,
**default_ssl_opts) as alice:
self.alice = alice
self.bob = MeshClient(
self.uri,
bob_mailbox,
bob_password,
max_chunk_size=5,
**default_ssl_opts)
super(MeshClientTest, self).run(result)
except HTTPError as e:
print(e.read())
print_stack_frames()
print("Message store", self.mock_app.messages)
raise
except:
print_stack_frames()
print("Message store", self.mock_app.messages)
raise
def test_handshake(self):
alice = self.alice
hand_shook = alice.handshake()
self.assertEqual(hand_shook, b"hello")
def test_send_receive(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(bob_mailbox, b"Hello Bob 1")
self.assertEqual([message_id], bob.list_messages())
self.assertEqual(1, bob.count_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.read(), b"Hello Bob 1")
self.assertEqual(msg.sender, "alice")
self.assertEqual(msg.recipient, "bob")
msg.acknowledge()
self.assertEqual([], bob.list_messages())
def test_send_receive_combine_streams_part1_multiple_of_chunk_size(self):
alice = self.alice
bob = self.bob
part1_length = 10
part2_length = 23
stream = {
'Body': CombineStreams([io.BytesIO(b"H"*part1_length), io.BytesIO((b"W"*part2_length))]),
'ContentLength': part1_length + part2_length,
}
message_id = alice.send_message(bob_mailbox, stream)
self.assertEqual([message_id], bob.list_messages())
self.assertEqual(1, bob.count_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.read(), b"H" * part1_length + b"W"*part2_length)
self.assertEqual(msg.sender, "alice")
self.assertEqual(msg.recipient, "bob")
msg.acknowledge()
self.assertEqual([], bob.list_messages())
def test_send_receive_combine_streams_part1_not_multiple_of_chunk_size(self):
alice = self.alice
bob = self.bob
part1_length = 4
part2_length = 20
stream = {
'Body': CombineStreams([io.BytesIO(b"H"*part1_length), io.BytesIO((b"W"*part2_length))]),
'ContentLength': part1_length + part2_length,
}
message_id = alice.send_message(bob_mailbox, stream)
self.assertEqual([message_id], bob.list_messages())
self.assertEqual(1, bob.count_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.read(), b"H" * part1_length + b"W"*part2_length)
self.assertEqual(msg.sender, "alice")
self.assertEqual(msg.recipient, "bob")
msg.acknowledge()
self.assertEqual([], bob.list_messages())
def test_line_by_line(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(bob_mailbox, b"Hello Bob 1\nHello Bob 2")
self.assertEqual([message_id], bob.list_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(list(iter(msg)), [b"Hello Bob 1\n", b"Hello Bob 2"])
def test_readline(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(bob_mailbox, b"Hello Bob 1\nHello Bob 2")
self.assertEqual([message_id], bob.list_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.readline(), b"Hello Bob 1\n")
def test_readlines(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(bob_mailbox, b"Hello Bob 1\nHello Bob 2")
self.assertEqual([message_id], bob.list_messages())
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.readlines(), [b"Hello Bob 1\n", b"Hello Bob 2"])
def test_transparent_compression(self):
alice = self.alice
bob = self.bob
print("Sending")
alice._transparent_compress = True
message_id = alice.send_message(
bob_mailbox, b"Hello Bob Compressed")
self.assertEqual([message_id], bob.list_messages())
print("Receiving")
msg = bob.retrieve_message(message_id)
self.assertEqual(msg.read(), b"Hello Bob Compressed")
self.assertEqual(msg.mex_header('from'), 'alice')
msg.acknowledge()
self.assertEqual([], bob.list_messages())
def test_iterate_and_context_manager(self):
alice = self.alice
bob = self.bob
alice.send_message(bob_mailbox, b"Hello Bob 2")
alice.send_message(bob_mailbox, b"Hello Bob 3")
messages_read = 0
for (msg, expected) in zip(bob.iterate_all_messages(),
[b"Hello Bob 2", b"Hello Bob 3"]):
with msg:
self.assertEqual(msg.read(), expected)
messages_read += 1
self.assertEqual(2, messages_read)
self.assertEqual([], bob.list_messages())
def test_context_manager_failure(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(bob_mailbox, b"Hello Bob 4")
try:
with bob.retrieve_message(message_id) as msg:
self.assertEqual(msg.read(), b"Hello Bob 4")
raise TestError()
except TestError:
pass
self.assertEqual([message_id], bob.list_messages())
def test_optional_args(self):
alice = self.alice
bob = self.bob
message_id = alice.send_message(
bob_mailbox,
b"Hello Bob 5",
subject="Hello World",
filename="upload.txt",
local_id="12345",
message_type="DATA",
process_id="321",
workflow_id="111",
encrypted=False,
compressed=False)
with bob.retrieve_message(message_id) as msg:
self.assertEqual(msg.subject, "Hello World")
self.assertEqual(msg.filename, "upload.txt")
self.assertEqual(msg.local_id, "12345")
self.assertEqual(msg.message_type, "DATA")
self.assertEqual(msg.process_id, "321")
self.assertEqual(msg.workflow_id, "111")
self.assertFalse(msg.encrypted)
self.assertFalse(msg.compressed)
message_id = alice.send_message(
bob_mailbox, b"Hello Bob 5", encrypted=True, compressed=True)
with bob.retrieve_message(message_id) as msg:
self.assertTrue(msg.encrypted)
self.assertTrue(msg.compressed)
def test_tracking(self):
alice = self.alice
bob = self.bob
tracking_id = 'Message1'
msg_id = alice.send_message(bob_mailbox, b'Hello World', local_id=tracking_id)
self.assertEqual(alice.get_tracking_info(tracking_id)['status'], 'Accepted')
bob.acknowledge_message(msg_id)
self.assertEqual(alice.get_tracking_info(tracking_id)['status'], 'Acknowledged')
def test_msg_id_tracking(self):
alice = self.alice
bob = self.bob
msg_id = alice.send_message(bob_mailbox, b'Hello World')
self.assertEqual(alice.get_tracking_info(message_id=msg_id)['status'], 'Accepted')
bob.acknowledge_message(msg_id)
self.assertEqual(alice.get_tracking_info(message_id=msg_id)['status'], 'Acknowledged')
def test_by_message_id_tracking(self):
alice = self.alice
bob = self.bob
msg_id = alice.send_message(bob_mailbox, b'Hello World')
self.assertEqual(alice.track_by_message_id(message_id=msg_id)['status'], 'Accepted')
bob.acknowledge_message(msg_id)
self.assertEqual(alice.track_by_message_id(message_id=msg_id)['status'], 'Acknowledged')
def test_endpoint_lookup(self):
result = self.alice.lookup_endpoint('ORG1', 'WF1')
result_list = result['results']
self.assertEqual(len(result_list), 1)
self.assertEqual(result_list[0]['address'], 'ORG1HC001')
self.assertEqual(result_list[0]['description'], 'ORG1 WF1 endpoint')
self.assertEqual(result_list[0]['endpoint_type'], 'MESH')
def test_error_handling(self):
alice = self.alice
with self.assertRaises(MeshError):
alice.send_message(bob_mailbox, b"")
class EndpointTest(TestCase):
def test_handshake(self):
with MockMeshApplication() as mock_app:
endpoint = LOCAL_MOCK_ENDPOINT._replace(url=mock_app.uri)
client = MeshClient(
endpoint,
alice_mailbox,
alice_password,
max_chunk_size=5)
hand_shook = client.handshake()
self.assertEqual(hand_shook, b"hello")
class TimeoutTest(TestCase):
def test_timeout(self):
with SlowMockMeshApplication() as mock_app:
endpoint = LOCAL_MOCK_ENDPOINT._replace(url=mock_app.uri)
client = MeshClient(
endpoint,
alice_mailbox,
alice_password,
max_chunk_size=5,
timeout=0.5)
with self.assertRaises(requests.exceptions.Timeout):
client.list_messages()
class MeshChunkRetryClientTest(TestCase):
def run(self, result=None):
try:
with MockMeshChunkRetryApplication() as mock_app:
self.mock_app = mock_app
self.uri = mock_app.uri
self.alice = MeshClient(
self.uri,
alice_mailbox,
alice_password,
max_chunk_size=5,
max_chunk_retries=3,
**default_ssl_opts)
self.bob = MeshClient(
self.uri,
bob_mailbox,
bob_password,
max_chunk_size=5,
max_chunk_retries=3,
**default_ssl_opts)
super(MeshChunkRetryClientTest, self).run(result)
except HTTPError as e:
print(e.read())
print_stack_frames()
print("Message store", self.mock_app.messages)
raise
except:
print_stack_frames()
print("Message store", self.mock_app.messages)
raise
def _count_chunk_retry_call_counts(self, mocked_post):
counts = {}
for call in mocked_post.call_args_list:
chunk = int(call.kwargs['headers']['Mex-Chunk-Range'].split(':')[0])
if chunk not in counts.keys():
counts[chunk] = 0
else:
counts[chunk] += 1
return counts
def test_chunk_retries(self):
alice = self.alice
bob = self.bob
mock_post = mock.Mock(wraps=alice._session.post)
alice._session.post = mock_post
chunk_options = namedtuple('Chunk', 'chunk_num num_retry_attempts')
options = [chunk_options(2, 2)]
self.mock_app.set_chunk_retry_options(options)
message_id = alice.send_message(bob_mailbox, b"Hello World")
received = bob.retrieve_message(message_id).read()
self.assertEqual(received, b'Hello World')
chunk_retry_call_counts = self._count_chunk_retry_call_counts(mock_post)
self.assertEqual(chunk_retry_call_counts[1], 0)
self.assertEqual(chunk_retry_call_counts[2], 3)
self.assertEqual(chunk_retry_call_counts[3], 0)
def test_chunk_all_retries_fail(self):
alice = self.alice
mock_post = mock.Mock(wraps=alice._session.post)
alice._session.post = mock_post
chunk_options = namedtuple('Chunk', 'chunk_num num_retry_attempts')
options = [chunk_options(2, 3)]
self.mock_app.set_chunk_retry_options(options)
self.assertRaises(requests.exceptions.HTTPError, alice.send_message, bob_mailbox, b"Hello World")
chunk_retry_call_counts = self._count_chunk_retry_call_counts(mock_post)
self.assertEqual(chunk_retry_call_counts[1], 0)
self.assertEqual(chunk_retry_call_counts[2], 3)
def test_chunk_retries_with_file(self):
alice = self.alice
bob = self.bob
mock_post = mock.Mock(wraps=alice._session.post)
alice._session.post = mock_post
chunk_options = namedtuple('Chunk', 'chunk_num num_retry_attempts')
options = [chunk_options(2, 2)]
self.mock_app.set_chunk_retry_options(options)
message_id = alice.send_message(bob_mailbox, open("test_chunk_retry_file", 'rb'))
received = bob.retrieve_message(message_id).read()
self.assertEqual(received, b'test1 test2 test3')
chunk_retry_call_counts = self._count_chunk_retry_call_counts(mock_post)
self.assertEqual(chunk_retry_call_counts[1], 0)
self.assertEqual(chunk_retry_call_counts[2], 3)
self.assertEqual(chunk_retry_call_counts[3], 0)
if __name__ == "__main__":
main()