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"""SSEClient unit tests."""
import time
import threading
import pytest
from contextlib import suppress
from splitio.push.sse import SSEClient, SSEEvent, SSEClientAsync
from splitio.optional.loaders import asyncio
from tests.helpers.mockserver import SSEMockServer
class SSEClientTests(object):
"""SSEClient test cases."""
def test_sse_client_disconnects(self):
"""Test correct initialization. Client ends the connection."""
server = SSEMockServer()
server.start()
events = []
def callback(event):
"""Callback."""
events.append(event)
client = SSEClient(callback)
def runner():
"""SSE client runner thread."""
assert client.start('http://127.0.0.1:' + str(server.port()))
client_task = threading.Thread(target=runner)
client_task.setName('client')
client_task.start()
with pytest.raises(RuntimeError):
client_task.start()
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
time.sleep(1)
client.shutdown()
time.sleep(1)
assert events == [
SSEEvent('1', None, None, None),
SSEEvent('2', 'message', None, 'abc'),
SSEEvent('3', 'message', None, 'def'),
SSEEvent('4', 'message', None, 'ghi')
]
assert client._conn is None
server.publish(server.GRACEFUL_REQUEST_END)
server.stop()
def test_sse_server_disconnects(self):
"""Test correct initialization. Server ends connection."""
server = SSEMockServer()
server.start()
events = []
def callback(event):
"""Callback."""
events.append(event)
client = SSEClient(callback)
def runner():
"""SSE client runner thread."""
assert not client.start('http://127.0.0.1:' + str(server.port()))
client_task = threading.Thread(target=runner)
client_task.setName('client')
client_task.start()
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
time.sleep(1)
server.publish(server.GRACEFUL_REQUEST_END)
server.stop()
time.sleep(1)
assert events == [
SSEEvent('1', None, None, None),
SSEEvent('2', 'message', None, 'abc'),
SSEEvent('3', 'message', None, 'def'),
SSEEvent('4', 'message', None, 'ghi')
]
assert client._conn is None
def test_sse_server_disconnects_abruptly(self):
"""Test correct initialization. Server ends connection."""
server = SSEMockServer()
server.start()
events = []
def callback(event):
"""Callback."""
events.append(event)
client = SSEClient(callback)
def runner():
"""SSE client runner thread."""
assert not client.start('http://127.0.0.1:' + str(server.port()))
client_task = threading.Thread(target=runner, daemon=True)
client_task.setName('client')
client_task.start()
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
time.sleep(1)
server.publish(server.VIOLENT_REQUEST_END)
server.stop()
time.sleep(1)
assert events == [
SSEEvent('1', None, None, None),
SSEEvent('2', 'message', None, 'abc'),
SSEEvent('3', 'message', None, 'def'),
SSEEvent('4', 'message', None, 'ghi')
]
assert client._conn is None
class SSEClientAsyncTests(object):
"""SSEClient test cases."""
@pytest.mark.asyncio
async def test_sse_client_disconnects(self):
"""Test correct initialization. Client ends the connection."""
server = SSEMockServer()
server.start()
client = SSEClientAsync()
sse_events_loop = client.start(f"http://127.0.0.1:{str(server.port())}?token=abc123$%^&(")
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
event1 = await sse_events_loop.__anext__()
event2 = await sse_events_loop.__anext__()
event3 = await sse_events_loop.__anext__()
event4 = await sse_events_loop.__anext__()
# Since generators are meant to be iterated, we need to consume them all until StopIteration occurs
# to do this, connection must be closed in another coroutine, while the current one is still consuming events.
shutdown_task = asyncio.get_running_loop().create_task(client.shutdown())
with pytest.raises(StopAsyncIteration): await sse_events_loop.__anext__()
await shutdown_task
assert event1 == SSEEvent('1', None, None, None)
assert event2 == SSEEvent('2', 'message', None, 'abc')
assert event3 == SSEEvent('3', 'message', None, 'def')
assert event4 == SSEEvent('4', 'message', None, 'ghi')
assert client._response == None
server.publish(server.GRACEFUL_REQUEST_END)
server.stop()
@pytest.mark.asyncio
async def test_sse_server_disconnects(self):
"""Test correct initialization. Server ends connection."""
server = SSEMockServer()
server.start()
client = SSEClientAsync()
sse_events_loop = client.start('http://127.0.0.1:' + str(server.port()))
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
event1 = await sse_events_loop.__anext__()
event2 = await sse_events_loop.__anext__()
event3 = await sse_events_loop.__anext__()
event4 = await sse_events_loop.__anext__()
server.publish(server.GRACEFUL_REQUEST_END)
# after the connection ends, any subsequent read sohould fail and iteration should stop
with pytest.raises(StopAsyncIteration): await sse_events_loop.__anext__()
assert event1 == SSEEvent('1', None, None, None)
assert event2 == SSEEvent('2', 'message', None, 'abc')
assert event3 == SSEEvent('3', 'message', None, 'def')
assert event4 == SSEEvent('4', 'message', None, 'ghi')
assert client._response == None
await client._done.wait() # to ensure `start()` has finished
assert client._response is None
# server.stop()
@pytest.mark.asyncio
async def test_sse_server_disconnects_abruptly(self):
"""Test correct initialization. Server ends connection."""
server = SSEMockServer()
server.start()
client = SSEClientAsync()
sse_events_loop = client.start('http://127.0.0.1:' + str(server.port()))
server.publish({'id': '1'})
server.publish({'id': '2', 'event': 'message', 'data': 'abc'})
server.publish({'id': '3', 'event': 'message', 'data': 'def'})
server.publish({'id': '4', 'event': 'message', 'data': 'ghi'})
event1 = await sse_events_loop.__anext__()
event2 = await sse_events_loop.__anext__()
event3 = await sse_events_loop.__anext__()
event4 = await sse_events_loop.__anext__()
server.publish(server.VIOLENT_REQUEST_END)
with pytest.raises(StopAsyncIteration): await sse_events_loop.__anext__()
server.stop()
assert event1 == SSEEvent('1', None, None, None)
assert event2 == SSEEvent('2', 'message', None, 'abc')
assert event3 == SSEEvent('3', 'message', None, 'def')
assert event4 == SSEEvent('4', 'message', None, 'ghi')
await client._done.wait() # to ensure `start()` has finished
assert client._response is None