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import asyncio
from collections import Counter
import time
import pytest
from falcon import testing
from falcon.asgi import App
@pytest.mark.slow
def test_multiple():
class SomeResource:
def __init__(self):
self.counter = Counter()
async def on_get(self, req, resp):
async def background_job_async():
self.counter['backround:on_get:async'] += 1
def background_job_sync():
self.counter['backround:on_get:sync'] += 20
with pytest.raises(TypeError):
resp.schedule(background_job_sync)
resp.schedule_sync(background_job_sync)
resp.schedule(background_job_async)
resp.schedule_sync(background_job_sync)
resp.schedule(background_job_async)
async def on_post(self, req, resp):
async def background_job_async():
self.counter['backround:on_get:async'] += 1000
def background_job_sync():
self.counter['backround:on_get:sync'] += 2000
resp.schedule(background_job_async)
resp.schedule(background_job_async)
resp.schedule_sync(background_job_sync)
resp.schedule_sync(background_job_sync)
async def on_put(self, req, resp):
async def background_job_async():
self.counter['backround:on_get:async'] += 1000
c = background_job_async()
try:
resp.schedule(c)
finally:
await c
resource = SomeResource()
app = App()
app.add_route('/', resource)
client = testing.TestClient(app)
client.simulate_get()
client.simulate_post()
time.sleep(0.5)
assert resource.counter['backround:on_get:async'] == 2002
assert resource.counter['backround:on_get:sync'] == 4040
result = client.simulate_put()
assert result.status_code == 500
# NOTE(kgriffs): Remove default handlers so that we can check the raised
# exception is what we expected.
app._error_handlers.clear()
with pytest.raises(TypeError) as exinfo:
client.simulate_put()
assert 'coroutine' in str(exinfo.value)
class SimpleCallback:
def __init__(self):
self.called = 0
self.event = asyncio.Event()
async def _call_me(self):
self.called += 1
self.event.set()
async def on_get(self, req, resp):
resp.content_type = 'text/plain'
resp.data = b'Hello, World!\n'
resp.schedule(self._call_me)
on_head = on_get
async def on_get_sse(self, req, resp):
async def nop_emitter():
yield None
resp.sse = nop_emitter()
resp.schedule(self._call_me)
async def on_get_stream(self, req, resp):
async def stream():
yield b'One\n'
yield b'Two\n'
yield b'Three\n'
resp.content_type = 'text/plain'
resp.stream = stream()
resp.schedule(self._call_me)
@pytest.fixture()
def simple_resource():
return SimpleCallback()
@pytest.fixture()
def callback_app(simple_resource):
app = App()
app.add_route('/', simple_resource)
app.add_route('/sse', simple_resource, suffix='sse')
app.add_route('/stream', simple_resource, suffix='stream')
return app
@pytest.mark.parametrize(
'method,uri,expected',
[
('GET', '/', 'Hello, World!\n'),
('HEAD', '/', ''),
('GET', '/sse', ': ping\n\n'),
('GET', '/stream', 'One\nTwo\nThree\n'),
],
)
async def test_callback(callback_app, simple_resource, method, uri, expected):
async with testing.ASGIConductor(callback_app) as conductor:
resp = await conductor.simulate_request(method, uri)
assert resp.status_code == 200
assert resp.text == expected
await asyncio.wait_for(simple_resource.event.wait(), 3.0)
assert simple_resource.called == 1
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