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import pytest
from vllm.engine.async_llm_engine import RequestTracker
from vllm.outputs import RequestOutput
class DummyEvent:
def __init__(self):
self.flag = False
def set(self):
self.flag = True
def clear(self):
self.flag = False
def test_request_tracker():
tracker = RequestTracker()
tracker.new_requests_event = DummyEvent()
stream_1 = tracker.add_request("1")
assert tracker.new_requests_event.flag
new, finished = tracker.get_new_and_finished_requests()
assert not tracker.new_requests_event.flag
assert len(new) == 1
assert new[0]["request_id"] == "1"
assert not finished
assert not stream_1.finished
stream_2 = tracker.add_request("2")
stream_3 = tracker.add_request("3")
assert tracker.new_requests_event.flag
new, finished = tracker.get_new_and_finished_requests()
assert not tracker.new_requests_event.flag
assert len(new) == 2
assert new[0]["request_id"] == "2"
assert new[1]["request_id"] == "3"
assert not finished
assert not stream_2.finished
assert not stream_3.finished
# request_ids must be unique
with pytest.raises(KeyError):
tracker.add_request("1")
assert not tracker.new_requests_event.flag
tracker.abort_request("1")
new, finished = tracker.get_new_and_finished_requests()
assert len(finished) == 1
assert "1" in finished
assert not new
assert stream_1.finished
stream_4 = tracker.add_request("4")
tracker.abort_request("4")
assert tracker.new_requests_event.flag
new, finished = tracker.get_new_and_finished_requests()
assert len(finished) == 1
assert "4" in finished
assert not new
assert stream_4.finished
stream_5 = tracker.add_request("5")
assert tracker.new_requests_event.flag
tracker.process_request_output(
RequestOutput("2", "output", [], [], [], finished=True))
new, finished = tracker.get_new_and_finished_requests()
assert not tracker.new_requests_event.flag
assert len(finished) == 1
assert "2" in finished
assert len(new) == 1
assert new[0]["request_id"] == "5"
assert stream_2.finished
assert not stream_5.finished
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