Mastodonplus.py/tests/test_streaming.py

438 lines
12 KiB
Python

import six
import pytest
import itertools
from mastodon.streaming import StreamListener, CallbackStreamListener
from mastodon.Mastodon import MastodonMalformedEventError
from mastodon import Mastodon
import threading
import time
import select
# For monkeypatching so we can make vcrpy better
import vcr.stubs
streaming_is_patched = False
real_connections = []
close_connections = False
def patch_streaming():
global streaming_is_patched
global close_connections
if streaming_is_patched == True:
return
streaming_is_patched = True
real_get_response = vcr.stubs.VCRConnection.getresponse
def fake_get_response(*args, **kwargs):
global close_connections
close_connections = False
if args[0]._vcr_request.path.startswith("/api/v1/streaming/"):
real_connections.append(args[0].real_connection)
real_connection_real_get_response = args[0].real_connection.getresponse
def fakeRealConnectionGetresponse(*args, **kwargs):
response = real_connection_real_get_response(*args, **kwargs)
real_body = b""
try:
while close_connections == False:
if len(select.select([response], [], [], 0.01)[0]) > 0:
chunk = response.read(1)
real_body += chunk
except AttributeError:
pass # Connection closed
print(real_body)
response.read = (lambda: real_body)
return response
args[0].real_connection.getresponse = fakeRealConnectionGetresponse
return real_get_response(*args, **kwargs)
vcr.stubs.VCRConnection.getresponse = fake_get_response
def streaming_close():
global real_connections
for connection in real_connections:
connection.close()
real_connections = []
close_connections = True
class Listener(StreamListener):
def __init__(self):
self.updates = []
self.notifications = []
self.deletes = []
self.heartbeats = 0
self.bla_called = False
self.do_something_called = False
def on_update(self, status):
self.updates.append(status)
def on_notification(self, notification):
self.notifications.append(notification)
def on_delete(self, status_id):
self.deletes.append(status_id)
def on_blahblah(self, data):
self.bla_called = True
pass
def on_do_something(self, data):
self.do_something_called = True
pass
def handle_heartbeat(self):
self.heartbeats += 1
def handle_stream_(self, lines):
"""Test helper to avoid littering all tests with six.b()."""
class MockResponse():
def __init__(self, data):
self.data = data
def iter_content(self, chunk_size):
for line in self.data:
for byte in line:
bytearr = bytearray()
bytearr.append(byte)
yield(bytearr)
yield(b'\n')
return self.handle_stream(MockResponse(map(six.b, lines)))
def test_heartbeat():
listener = Listener()
listener.handle_stream_([':one', ':two'])
assert listener.heartbeats == 2
def test_status():
listener = Listener()
listener.handle_stream_([
'event: update',
'data: {"foo": "bar"}',
'',
])
assert listener.updates == [{"foo": "bar"}]
def test_notification():
listener = Listener()
listener.handle_stream_([
'event: notification',
'data: {"foo": "bar"}',
'',
])
assert listener.notifications == [{"foo": "bar"}]
def test_delete():
listener = Listener()
listener.handle_stream_([
'event: delete',
'data: 123',
'',
])
assert listener.deletes == [123]
@pytest.mark.parametrize('events', itertools.permutations([
['event: update', 'data: {"foo": "bar"}', ''],
['event: notification', 'data: {"foo": "bar"}', ''],
['event: delete', 'data: 123', ''],
[':toot toot'],
[':beep beep'],
]))
def test_many(events):
listener = Listener()
stream = [
line
for event in events
for line in event
]
listener.handle_stream_(stream)
assert listener.updates == [{"foo": "bar"}]
assert listener.notifications == [{"foo": "bar"}]
assert listener.deletes == [123]
assert listener.heartbeats == 2
def test_unknown_event():
"""Be tolerant of new event types"""
listener = Listener()
listener.handle_stream_([
'event: blahblah',
'data: {}',
'',
])
assert listener.bla_called == True
assert listener.updates == []
assert listener.notifications == []
assert listener.deletes == []
assert listener.heartbeats == 0
def test_unknown_handled_event():
"""Be tolerant of new unknown event types, if on_unknown_event is available"""
listener = Listener()
listener.on_unknown_event = lambda name, payload: None
listener.handle_stream_([
'event: complete.new.event',
'data: {"k": "v"}',
'',
])
assert listener.updates == []
assert listener.notifications == []
assert listener.deletes == []
assert listener.heartbeats == 0
def test_dotted_unknown_event():
"""Be tolerant of new event types with dots in the event-name"""
listener = Listener()
listener.handle_stream_([
'event: do.something',
'data: {}',
'',
])
assert listener.do_something_called == True
assert listener.updates == []
assert listener.notifications == []
assert listener.deletes == []
assert listener.heartbeats == 0
def test_invalid_event():
"""But not too tolerant"""
listener = Listener()
with pytest.raises(MastodonMalformedEventError):
listener.handle_stream_([
'event: whatup',
'data: {"k": "v"}',
'',
])
def test_invalid_json():
"""But not too tolerant"""
listener = Listener()
with pytest.raises(MastodonMalformedEventError):
listener.handle_stream_([
'event: blahblah',
'data: {kjaslkdjalskdjasd asdkjhak ajdasldasd}',
'',
])
def test_missing_event_name():
listener = Listener()
with pytest.raises(MastodonMalformedEventError):
listener.handle_stream_([
'data: {}',
'',
])
assert listener.updates == []
assert listener.notifications == []
assert listener.deletes == []
assert listener.heartbeats == 0
def test_missing_data():
listener = Listener()
with pytest.raises(MastodonMalformedEventError):
listener.handle_stream_([
'event: update',
'',
])
assert listener.updates == []
assert listener.notifications == []
assert listener.deletes == []
assert listener.heartbeats == 0
def test_sse_order_doesnt_matter():
listener = Listener()
listener.handle_stream_([
'data: {"foo": "bar"}',
'event: update',
'',
])
assert listener.updates == [{"foo": "bar"}]
def test_extra_keys_ignored():
"""
https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#Event_stream_format
defines 'id' and 'retry' keys which the Mastodon streaming API doesn't use,
and alleges that "All other field names are ignored".
"""
listener = Listener()
listener.handle_stream_([
'event: update',
'data: {"foo": "bar"}',
'id: 123',
'retry: 456',
'ignoreme: blah blah blah',
'',
])
assert listener.updates == [{"foo": "bar"}]
def test_valid_utf8():
"""Snowman Cat Face With Tears Of Joy"""
listener = Listener()
listener.handle_stream_([
'event: update',
'data: {"foo": "\xE2\x98\x83\xF0\x9F\x98\xB9"}',
'',
])
assert listener.updates == [{"foo": u"\u2603\U0001F639"}]
def test_invalid_utf8():
"""Cat Face With Tears O"""
listener = Listener()
with pytest.raises(MastodonMalformedEventError):
listener.handle_stream_([
'event: update',
'data: {"foo": "\xF0\x9F\x98"}',
'',
])
def test_multiline_payload():
"""
https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#Data-only_messages
says that newlines in the 'data' field can be encoded by sending the field
twice! This would be really pathological for Mastodon because the payload
is JSON, but technically literal newlines are permissible (outside strings)
so let's handle this case.
"""
listener = Listener()
listener.handle_stream_([
'event: update',
'data: {"foo":',
'data: "bar"',
'data: }',
'',
])
assert listener.updates == [{"foo": "bar"}]
@pytest.mark.vcr(match_on=['path'])
def test_stream_user(api, api2):
patch_streaming()
# Make sure we are in the right state to not receive updates from api2
user = api2.account_verify_credentials()
api2.account_unfollow(user)
time.sleep(2)
updates = []
notifications = []
deletes = []
listener = CallbackStreamListener(
update_handler = lambda x: updates.append(x),
notification_handler = lambda x: notifications.append(x),
delete_handler = lambda x: deletes.append(x)
)
posted = []
def do_activities():
time.sleep(5)
posted.append(api.status_post("only real cars respond."))
posted.append(api2.status_post("@mastodonpy_test beep beep I'm a jeep"))
posted.append(api2.status_post("on the internet, nobody knows you're a plane"))
time.sleep(1)
api.status_delete(posted[0])
time.sleep(10)
streaming_close()
t = threading.Thread(args=(), target=do_activities)
t.start()
stream = None
try:
stream = api.stream_user(listener, run_async=True)
time.sleep(20)
finally:
if stream != None:
stream.close()
assert len(updates) == 1
assert len(notifications) == 1
assert len(deletes) == 1
assert updates[0].id == posted[0].id
assert deletes[0] == posted[0].id
assert notifications[0].status.id == posted[1].id
t.join()
@pytest.mark.vcr(match_on=['path'])
def test_stream_user_local(api, api2):
patch_streaming()
# Make sure we are in the right state to not receive updates from api2
user = api2.account_verify_credentials()
api2.account_unfollow(user)
updates = []
notifications = []
listener = CallbackStreamListener(
local_update_handler = lambda x: updates.append(x),
)
posted = []
def do_activities():
time.sleep(5)
posted.append(api.status_post("it's cool guy"))
time.sleep(10)
streaming_close()
t = threading.Thread(args=(), target=do_activities)
t.start()
stream = None
try:
stream = api.stream_user(listener, run_async=True)
time.sleep(20)
finally:
if stream != None:
stream.close()
assert len(updates) == 1
assert updates[0].id == posted[0].id
t.join()
@pytest.mark.vcr(match_on=['path'])
def test_stream_direct(api, api2):
patch_streaming()
conversations = []
listener = CallbackStreamListener(
conversation_handler = lambda x: conversations.append(x),
)
def do_activities():
time.sleep(5)
api2.status_post("@mastodonpy_test todo funny text here", visibility = "direct")
time.sleep(10)
streaming_close()
t = threading.Thread(args=(), target=do_activities)
t.start()
stream = None
try:
stream = api.stream_direct(listener, run_async=True)
time.sleep(20)
finally:
if stream != None:
stream.close()
assert len(conversations) == 1
@pytest.mark.vcr()
def test_stream_healthy(api_anonymous):
assert api_anonymous.stream_healthy()