async def test_diagnose_on_response_delays(client):
tmax = client.app[kMAX_AVG_RESP_LATENCY]
coros = [client.get(f"/delay/{1.1*tmax}") for _ in range(10)]
tic = time.time()
resps = await asyncio.gather(*coros)
toc = time.time() - tic # should take approx 1.1*tmax
assert toc < 1.2 * tmax
for resp in resps:
await assert_status(resp, web.HTTPOk)
# monitoring
latency_observed = client.app[kLATENCY_PROBE].value()
assert latency_observed > tmax
# diagnostics
with pytest.raises(HealthError):
assert_healthy_app(client.app)
async def test_diagnose_on_response_delays(client):
settings: DiagnosticsSettings = client.app[
APP_SETTINGS_KEY].WEBSERVER_DIAGNOSTICS
tmax = settings.DIAGNOSTICS_MAX_AVG_LATENCY
coros = [client.get(f"/delay/{1.1*tmax}") for _ in range(10)]
tic = time.time()
resps = await asyncio.gather(*coros)
toc = time.time() - tic # should take approx 1.1*tmax
assert toc < 1.2 * tmax
for resp in resps:
await assert_status(resp, web.HTTPOk)
# monitoring
latency_observed = client.app[kLATENCY_PROBE].value()
assert latency_observed > tmax
# diagnostics
with pytest.raises(HealthError):
assert_healthy_app(client.app)
async def test_diagnose_on_failure(client):
resp = await client.get("/fail")
assert resp.status == web.HTTPServiceUnavailable.status_code
assert_healthy_app(client.app)
async def test_diagnose_on_unexpected_error(client):
resp = await client.get("/error")
assert resp.status == web.HTTPInternalServerError.status_code
assert_healthy_app(client.app)
