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test_engine.py
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test_engine.py
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import time
from contextlib import contextmanager
from functools import partial
from typing import List
from unittest.mock import MagicMock
from uuid import uuid4
import anyio
import pendulum
import pytest
from pydantic import BaseModel
import prefect.flows
from prefect import engine, flow, task
from prefect.context import FlowRunContext
from prefect.engine import (
begin_flow_run,
create_and_begin_subflow_run,
create_then_begin_flow_run,
link_state_to_result,
orchestrate_flow_run,
orchestrate_task_run,
retrieve_flow_then_begin_flow_run,
)
from prefect.exceptions import (
Abort,
CrashedRun,
ParameterTypeError,
SignatureMismatchError,
)
from prefect.futures import PrefectFuture
from prefect.orion.schemas.filters import FlowRunFilter
from prefect.orion.schemas.states import StateDetails, StateType
from prefect.results import ResultFactory
from prefect.states import Cancelled, Failed, Pending, Running, State
from prefect.task_runners import SequentialTaskRunner
from prefect.testing.utilities import AsyncMock, exceptions_equal, flaky_on_windows
from prefect.utilities.annotations import quote
from prefect.utilities.pydantic import PartialModel
@pytest.fixture
async def result_factory(orion_client):
return await ResultFactory.default_factory(
client=orion_client,
)
@pytest.fixture
async def patch_manifest_load(monkeypatch):
async def patch_manifest(f):
async def anon(*args, **kwargs):
return f
monkeypatch.setattr(
engine,
"load_flow_from_flow_run",
anon,
)
return f
return patch_manifest
@pytest.fixture
def parameterized_flow():
@flow
def flow_for_tests(dog: str, cat: int):
"""Flow for testing functions"""
return flow_for_tests
@pytest.fixture
def flow_run_caplog(caplog):
"""
Capture logging from flow runs to ensure messages are correct.
"""
import logging
logger = logging.getLogger("prefect.flow_runs")
logger2 = logging.getLogger("prefect")
logger.propagate = True
logger2.propagate = True
try:
yield caplog
finally:
logger.propagate = False
@pytest.fixture
async def get_flow_run_context(orion_client, result_factory, local_filesystem):
partial_ctx = PartialModel(FlowRunContext)
@flow
def foo():
pass
test_task_runner = SequentialTaskRunner()
flow_run = await orion_client.create_flow_run(foo)
async def _get_flow_run_context():
async with anyio.create_task_group() as tg:
partial_ctx.background_tasks = tg
return partial_ctx.finalize(
flow=foo,
flow_run=flow_run,
client=orion_client,
task_runner=test_task_runner,
result_factory=result_factory,
)
return _get_flow_run_context
class TestOrchestrateTaskRun:
async def test_waits_until_scheduled_start_time(
self,
orion_client,
flow_run,
mock_anyio_sleep,
local_filesystem,
result_factory,
monkeypatch,
):
@task
def foo():
return 1
task_run = await orion_client.create_task_run(
task=foo,
flow_run_id=flow_run.id,
dynamic_key="0",
state=State(
type=StateType.SCHEDULED,
state_details=StateDetails(
scheduled_time=pendulum.now("utc").add(minutes=5)
),
),
)
with mock_anyio_sleep.assert_sleeps_for(5 * 60):
state = await orchestrate_task_run(
task=foo,
task_run=task_run,
parameters={},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
assert state.is_completed()
assert await state.result() == 1
async def test_does_not_wait_for_scheduled_time_in_past(
self, orion_client, flow_run, mock_anyio_sleep, result_factory, local_filesystem
):
@task
def foo():
return 1
task_run = await orion_client.create_task_run(
task=foo,
flow_run_id=flow_run.id,
dynamic_key="0",
state=State(
type=StateType.SCHEDULED,
state_details=StateDetails(
scheduled_time=pendulum.now("utc").subtract(minutes=5)
),
),
)
state = await orchestrate_task_run(
task=foo,
task_run=task_run,
parameters={},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
mock_anyio_sleep.assert_not_called()
assert state.is_completed()
assert await state.result() == 1
async def test_waits_for_awaiting_retry_scheduled_time(
self, mock_anyio_sleep, orion_client, flow_run, result_factory, local_filesystem
):
# Define a task that fails once and then succeeds
mock = MagicMock()
@task(retries=1, retry_delay_seconds=43)
def flaky_function():
mock()
if mock.call_count == 2:
return 1
raise ValueError("try again, but only once")
# Create a task run to test
task_run = await orion_client.create_task_run(
task=flaky_function,
flow_run_id=flow_run.id,
state=Pending(),
dynamic_key="0",
)
# Actually run the task
with mock_anyio_sleep.assert_sleeps_for(43):
state = await orchestrate_task_run(
task=flaky_function,
task_run=task_run,
parameters={},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
# Check for a proper final result
assert await state.result() == 1
# Check expected state transitions
states = await orion_client.read_task_run_states(task_run.id)
state_names = [state.type for state in states]
assert state_names == [
StateType.PENDING,
StateType.RUNNING,
StateType.SCHEDULED,
StateType.RUNNING,
StateType.COMPLETED,
]
@pytest.mark.parametrize(
"upstream_task_state", [Pending(), Running(), Cancelled(), Failed()]
)
async def test_returns_not_ready_when_any_upstream_futures_resolve_to_incomplete(
self,
orion_client,
flow_run,
upstream_task_state,
result_factory,
local_filesystem,
):
# Define a mock to ensure the task was not run
mock = MagicMock()
@task
def my_task(x):
mock()
# Create an upstream task run
upstream_task_run = await orion_client.create_task_run(
task=my_task,
flow_run_id=flow_run.id,
state=upstream_task_state,
dynamic_key="upstream",
)
upstream_task_state.state_details.task_run_id = upstream_task_run.id
# Create a future to wrap the upstream task, have it resolve to the given
# incomplete state
future = PrefectFuture(
key=str(upstream_task_run.id),
name="foo",
task_runner=None,
_final_state=upstream_task_state,
)
# simulate assigning task run to the future
future.task_run = upstream_task_run
future._submitted.set()
# Create a task run to test
task_run = await orion_client.create_task_run(
task=my_task,
flow_run_id=flow_run.id,
state=Pending(),
dynamic_key="downstream",
)
# Actually run the task
state = await orchestrate_task_run(
task=my_task,
task_run=task_run,
# Nest the future in a collection to ensure that it is found
parameters={"x": {"nested": [future]}},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
# The task did not run
mock.assert_not_called()
# Check that the state is 'NotReady'
assert state.is_pending()
assert state.name == "NotReady"
assert (
state.message
== f"Upstream task run '{upstream_task_run.id}' did not reach a 'COMPLETED' state."
)
async def test_quoted_parameters_are_resolved(
self, orion_client, flow_run, result_factory, local_filesystem
):
# Define a mock to ensure the task was not run
mock = MagicMock()
@task
def my_task(x):
mock(x)
# Create a task run to test
task_run = await orion_client.create_task_run(
task=my_task,
flow_run_id=flow_run.id,
state=Pending(),
dynamic_key="downstream",
)
# Actually run the task
state = await orchestrate_task_run(
task=my_task,
task_run=task_run,
# Quote some data
parameters={"x": quote(1)},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
# The task ran with the unqoted data
mock.assert_called_once_with(1)
# Check that the state completed happily
assert state.is_completed()
@pytest.mark.parametrize(
"upstream_task_state", [Pending(), Running(), Cancelled(), Failed()]
)
async def test_states_in_parameters_can_be_incomplete_if_quoted(
self,
orion_client,
flow_run,
upstream_task_state,
result_factory,
local_filesystem,
):
# Define a mock to ensure the task was not run
mock = MagicMock()
@task
def my_task(x):
mock(x)
# Create a task run to test
task_run = await orion_client.create_task_run(
task=my_task,
flow_run_id=flow_run.id,
state=Pending(),
dynamic_key="downstream",
)
# Actually run the task
state = await orchestrate_task_run(
task=my_task,
task_run=task_run,
parameters={"x": quote(upstream_task_state)},
wait_for=None,
result_factory=result_factory,
interruptible=False,
client=orion_client,
)
# The task ran with the state as its input
mock.assert_called_once_with(upstream_task_state)
# Check that the task completed happily
assert state.is_completed()
@flaky_on_windows
async def test_interrupt_task(self):
i = 0
@task()
def just_sleep():
nonlocal i
for i in range(100): # Sleep for 10 seconds
time.sleep(0.1)
@flow
def my_flow():
with pytest.raises(TimeoutError):
with anyio.fail_after(1):
just_sleep()
t0 = time.perf_counter()
my_flow._run()
t1 = time.perf_counter()
runtime = t1 - t0
assert runtime < 2, "The call should be return quickly after timeout"
# Sleep for an extra second to check if the thread is still running. We cannot
# check `thread.is_alive()` because it is still alive — presumably this is because
# AnyIO is using long-lived worker threads instead of creating a new thread per
# task. Without a check like this, the thread can be running after timeout in the
# background and we will not know — the next test will start.
await anyio.sleep(1)
assert i <= 10, "`just_sleep` should not be running after timeout"
class TestOrchestrateFlowRun:
@pytest.fixture
def partial_flow_run_context(self, result_factory, local_filesystem):
return PartialModel(
FlowRunContext,
task_runner=SequentialTaskRunner(),
sync_portal=None,
result_factory=result_factory,
)
async def test_waits_until_scheduled_start_time(
self, orion_client, mock_anyio_sleep, partial_flow_run_context
):
@flow
def foo():
return 1
partial_flow_run_context.background_tasks = anyio.create_task_group()
flow_run = await orion_client.create_flow_run(
flow=foo,
state=State(
type=StateType.SCHEDULED,
state_details=StateDetails(
scheduled_time=pendulum.now("utc").add(minutes=5)
),
),
)
with mock_anyio_sleep.assert_sleeps_for(5 * 60):
state = await orchestrate_flow_run(
flow=foo,
flow_run=flow_run,
parameters={},
client=orion_client,
interruptible=False,
partial_flow_run_context=partial_flow_run_context,
)
assert await state.result() == 1
async def test_does_not_wait_for_scheduled_time_in_past(
self, orion_client, mock_anyio_sleep, partial_flow_run_context
):
@flow
def foo():
return 1
partial_flow_run_context.background_tasks = anyio.create_task_group()
flow_run = await orion_client.create_flow_run(
flow=foo,
state=State(
type=StateType.SCHEDULED,
state_details=StateDetails(
scheduled_time=pendulum.now("utc").subtract(minutes=5)
),
),
)
with anyio.fail_after(5):
state = await orchestrate_flow_run(
flow=foo,
flow_run=flow_run,
parameters={},
client=orion_client,
interruptible=False,
partial_flow_run_context=partial_flow_run_context,
)
mock_anyio_sleep.assert_not_called()
assert await state.result() == 1
async def test_waits_for_awaiting_retry_scheduled_time(
self, orion_client, mock_anyio_sleep, partial_flow_run_context
):
flow_run_count = 0
partial_flow_run_context.background_tasks = anyio.create_task_group()
@flow(retries=1, retry_delay_seconds=43)
def flaky_function():
nonlocal flow_run_count
flow_run_count += 1
if flow_run_count == 1:
raise ValueError("try again, but only once")
return 1
flow_run = await orion_client.create_flow_run(
flow=flaky_function, state=Pending()
)
with mock_anyio_sleep.assert_sleeps_for(43):
state = await orchestrate_flow_run(
flow=flaky_function,
flow_run=flow_run,
parameters={},
client=orion_client,
interruptible=False,
partial_flow_run_context=partial_flow_run_context,
)
# Check for a proper final result
assert await state.result() == 1
# Check expected state transitions
states = await orion_client.read_flow_run_states(flow_run.id)
state_names = [state.type for state in states]
assert state_names == [
StateType.PENDING,
StateType.RUNNING,
StateType.SCHEDULED,
StateType.RUNNING,
StateType.COMPLETED,
]
class TestFlowRunCrashes:
@staticmethod
@contextmanager
def capture_cancellation():
"""Utility for capturing crash exceptions consistently in these tests"""
try:
yield
except BaseException:
# In python 3.8+ cancellation raises a `BaseException` that will not
# be captured by `orchestrate_flow_run` and needs to be trapped here to
# prevent the test from failing before we can assert things are 'Crashed'
pass
except anyio.get_cancelled_exc_class() as exc:
raise RuntimeError("The cancellation error was not caught.") from exc
async def test_anyio_cancellation_crashes_flow(self, flow_run, orion_client):
started = anyio.Event()
@flow
async def my_flow():
started.set()
await anyio.sleep_forever()
with self.capture_cancellation():
async with anyio.create_task_group() as tg:
tg.start_soon(
partial(
begin_flow_run,
flow=my_flow,
flow_run=flow_run,
parameters={},
client=orion_client,
)
)
await started.wait()
tg.cancel_scope.cancel()
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert (
"Execution was cancelled by the runtime environment"
in flow_run.state.message
)
with pytest.raises(
CrashedRun, match="Execution was cancelled by the runtime environment"
):
await flow_run.state.result()
async def test_anyio_cancellation_crashes_subflow(self, flow_run, orion_client):
started = anyio.Event()
@flow
async def child_flow():
started.set()
await anyio.sleep_forever()
@flow
async def parent_flow():
await child_flow()
with self.capture_cancellation():
async with anyio.create_task_group() as tg:
tg.start_soon(
partial(
begin_flow_run,
flow=parent_flow,
parameters={},
flow_run=flow_run,
client=orion_client,
)
)
await started.wait()
tg.cancel_scope.cancel()
parent_flow_run = await orion_client.read_flow_run(flow_run.id)
assert parent_flow_run.state.is_crashed()
assert parent_flow_run.state.type == StateType.CRASHED
with pytest.raises(
CrashedRun, match="Execution was cancelled by the runtime environment"
):
await parent_flow_run.state.result()
child_runs = await orion_client.read_flow_runs(
flow_run_filter=FlowRunFilter(parent_task_run_id=dict(is_null_=False))
)
assert len(child_runs) == 1
child_run = child_runs[0]
assert child_run.state.is_crashed()
assert child_run.state.type == StateType.CRASHED
assert (
"Execution was cancelled by the runtime environment"
in child_run.state.message
)
with pytest.raises(
CrashedRun, match="Execution was cancelled by the runtime environment"
):
await child_run.state.result()
@pytest.mark.parametrize("interrupt_type", [KeyboardInterrupt, SystemExit])
async def test_interrupt_in_flow_function_crashes_flow(
self, flow_run, orion_client, interrupt_type
):
@flow
async def my_flow():
raise interrupt_type()
with pytest.raises(interrupt_type):
await begin_flow_run(
flow=my_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert "Execution was aborted" in flow_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await flow_run.state.result()
@pytest.mark.parametrize("interrupt_type", [KeyboardInterrupt, SystemExit])
async def test_interrupt_during_orchestration_crashes_flow(
self, flow_run, orion_client, monkeypatch, interrupt_type
):
monkeypatch.setattr(
"prefect.engine.propose_state",
MagicMock(side_effect=interrupt_type()),
)
@flow
async def my_flow():
pass
with pytest.raises(interrupt_type):
await begin_flow_run(
flow=my_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert "Execution was aborted" in flow_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await flow_run.state.result()
@pytest.mark.parametrize("interrupt_type", [KeyboardInterrupt, SystemExit])
async def test_interrupt_in_flow_function_crashes_subflow(
self, flow_run, orion_client, interrupt_type
):
@flow
async def child_flow():
raise interrupt_type()
@flow
async def parent_flow():
await child_flow()
with pytest.raises(interrupt_type):
await begin_flow_run(
flow=parent_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert "Execution was aborted" in flow_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await flow_run.state.result()
child_runs = await orion_client.read_flow_runs(
flow_run_filter=FlowRunFilter(parent_task_run_id=dict(is_null_=False))
)
assert len(child_runs) == 1
child_run = child_runs[0]
assert child_run.id != flow_run.id
assert child_run.state.is_crashed()
assert child_run.state.type == StateType.CRASHED
assert "Execution was aborted" in child_run.state.message
async def test_flow_timeouts_are_not_crashes(self, flow_run, orion_client):
"""
Since timeouts use anyio cancellation scopes, we want to ensure that they are
not marked as crashes
"""
@flow(timeout_seconds=0.1)
async def my_flow():
await anyio.sleep_forever()
await begin_flow_run(
flow=my_flow,
parameters={},
flow_run=flow_run,
client=orion_client,
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_failed()
assert flow_run.state.type != StateType.CRASHED
assert "exceeded timeout" in flow_run.state.message
async def test_aborts_are_not_crashes(self, flow_run, orion_client):
"""
Since aborts are base exceptions, we want to ensure that they are not marked as
crashes
"""
@flow
async def my_flow():
raise Abort()
with pytest.raises(Abort):
# ^ the exception should be re-raised
await begin_flow_run(
flow=my_flow,
parameters={},
flow_run=flow_run,
client=orion_client,
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.type != StateType.CRASHED
async def test_timeouts_do_not_hide_crashes(self, flow_run, orion_client):
"""
Since timeouts capture anyio cancellations, we want to ensure that something
still ends up in a 'Crashed' state if it is cancelled independently from our
timeout cancellation.
"""
started = anyio.Event()
@flow(timeout_seconds=100)
async def my_flow():
started.set()
await anyio.sleep_forever()
with self.capture_cancellation():
async with anyio.create_task_group() as tg:
tg.start_soon(
partial(
begin_flow_run,
parameters={},
flow=my_flow,
flow_run=flow_run,
client=orion_client,
)
)
await started.wait()
tg.cancel_scope.cancel()
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert (
"Execution was cancelled by the runtime environment"
in flow_run.state.message
)
@pytest.mark.flaky(max_runs=3)
async def test_interrupt_flow(self):
i = 0
@flow()
def just_sleep():
nonlocal i
for i in range(100): # Sleep for 10 seconds
time.sleep(0.1)
@flow
def my_flow():
with pytest.raises(TimeoutError):
with anyio.fail_after(1):
just_sleep()
t0 = time.perf_counter()
my_flow._run()
t1 = time.perf_counter()
runtime = t1 - t0
assert runtime < 2, "The call should be return quickly after timeout"
# Sleep for an extra second to check if the thread is still running. We cannot
# check `thread.is_alive()` because it is still alive — presumably this is because
# AnyIO is using long-lived worker threads instead of creating a new thread per
# task. Without a check like this, the thread can be running after timeout in the
# background and we will not know — the next test will start.
await anyio.sleep(1)
assert i <= 10, "`just_sleep` should not be running after timeout"
class TestTaskRunCrashes:
@pytest.mark.parametrize("interrupt_type", [KeyboardInterrupt, SystemExit])
async def test_interrupt_in_task_function_crashes_task_and_flow(
self, flow_run, orion_client, interrupt_type
):
@task
async def my_task():
raise interrupt_type()
@flow
async def my_flow():
await my_task()
with pytest.raises(interrupt_type):
await begin_flow_run(
flow=my_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert "Execution was aborted" in flow_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await flow_run.state.result()
task_runs = await orion_client.read_task_runs()
assert len(task_runs) == 1
task_run = task_runs[0]
assert task_run.state.is_crashed()
assert task_run.state.type == StateType.CRASHED
assert "Execution was aborted" in task_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await task_run.state.result()
@pytest.mark.parametrize("interrupt_type", [KeyboardInterrupt, SystemExit])
async def test_interrupt_in_task_orchestration_crashes_task_and_flow(
self, flow_run, orion_client, interrupt_type, monkeypatch
):
monkeypatch.setattr(
"prefect.engine.orchestrate_task_run", AsyncMock(side_effect=interrupt_type)
)
@task
async def my_task():
pass
@flow
async def my_flow():
await my_task()
with pytest.raises(interrupt_type):
await begin_flow_run(
flow=my_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_crashed()
assert flow_run.state.type == StateType.CRASHED
assert "Execution was aborted" in flow_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await flow_run.state.result()
task_runs = await orion_client.read_task_runs()
assert len(task_runs) == 1
task_run = task_runs[0]
assert task_run.state.is_crashed()
assert task_run.state.type == StateType.CRASHED
assert "Execution was aborted" in task_run.state.message
with pytest.raises(CrashedRun, match="Execution was aborted"):
await task_run.state.result()
async def test_error_in_task_orchestration_crashes_task_but_not_flow(
self, flow_run, orion_client, monkeypatch
):
exception = ValueError("Boo!")
monkeypatch.setattr(
"prefect.engine.orchestrate_task_run", AsyncMock(side_effect=exception)
)
@task
async def my_task():
pass
@flow
async def my_flow():
await my_task._run()
# Note exception should not be re-raised
state = await begin_flow_run(
flow=my_flow, flow_run=flow_run, parameters={}, client=orion_client
)
flow_run = await orion_client.read_flow_run(flow_run.id)
assert flow_run.state.is_failed()
assert flow_run.state.name == "Failed"
assert "1/1 states failed" in flow_run.state.message
task_run_states = await state.result(raise_on_failure=False)
assert len(task_run_states) == 1
task_run_state = task_run_states[0]
assert task_run_state.is_crashed()
assert task_run_state.type == StateType.CRASHED
assert (
"Execution was interrupted by an unexpected exception"
in task_run_state.message
)
assert exceptions_equal(
await task_run_state.result(raise_on_failure=False), exception
)
# Check that the state was reported to the server
task_run = await orion_client.read_task_run(
task_run_state.state_details.task_run_id
)
compare_fields = {"name", "type", "message"}
assert task_run_state.dict(include=compare_fields) == task_run.state.dict(
include=compare_fields
)
class TestDeploymentFlowRun:
async def create_deployment(self, client, flow):
flow_id = await client.create_flow(flow)
return await client.create_deployment(
flow_id,
name="test",
manifest_path="file.json",
)
async def test_completed_run(self, orion_client, patch_manifest_load):
@flow
def my_flow(x: int):
return x
await patch_manifest_load(my_flow)
deployment_id = await self.create_deployment(orion_client, my_flow)
flow_run = await orion_client.create_flow_run_from_deployment(
deployment_id, parameters={"x": 1}
)
state = await retrieve_flow_then_begin_flow_run(
flow_run.id, client=orion_client
)
assert await state.result() == 1
async def test_retries_loaded_from_flow_definition(
self, orion_client, patch_manifest_load, mock_anyio_sleep
):
@flow(retries=2, retry_delay_seconds=3)
def my_flow(x: int):
raise ValueError()
await patch_manifest_load(my_flow)
deployment_id = await self.create_deployment(orion_client, my_flow)
flow_run = await orion_client.create_flow_run_from_deployment(
deployment_id, parameters={"x": 1}
)
assert flow_run.empirical_policy.retries == None
assert flow_run.empirical_policy.retry_delay == None
with mock_anyio_sleep.assert_sleeps_for(
my_flow.retries * my_flow.retry_delay_seconds,
# Allow an extra second tolerance per retry to account for rounding
extra_tolerance=my_flow.retries,