119 lines
3.3 KiB
Python
119 lines
3.3 KiB
Python
import asyncio
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import sys
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from typing import (TYPE_CHECKING, Any, AsyncIterator, Awaitable, Protocol,
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Tuple, TypeVar)
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import pytest
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from vllm.utils import deprecate_kwargs, merge_async_iterators
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from .utils import error_on_warning
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if sys.version_info < (3, 10):
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if TYPE_CHECKING:
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_AwaitableT = TypeVar("_AwaitableT", bound=Awaitable[Any])
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_AwaitableT_co = TypeVar("_AwaitableT_co",
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bound=Awaitable[Any],
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covariant=True)
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class _SupportsSynchronousAnext(Protocol[_AwaitableT_co]):
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def __anext__(self) -> _AwaitableT_co:
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...
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def anext(i: "_SupportsSynchronousAnext[_AwaitableT]", /) -> "_AwaitableT":
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return i.__anext__()
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@pytest.mark.asyncio
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async def test_merge_async_iterators():
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async def mock_async_iterator(idx: int) -> AsyncIterator[str]:
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try:
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while True:
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yield f"item from iterator {idx}"
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await asyncio.sleep(0.1)
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except asyncio.CancelledError:
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pass
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iterators = [mock_async_iterator(i) for i in range(3)]
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merged_iterator: AsyncIterator[Tuple[int, str]] = merge_async_iterators(
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*iterators)
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async def stream_output(generator: AsyncIterator[Tuple[int, str]]):
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async for idx, output in generator:
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print(f"idx: {idx}, output: {output}")
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task = asyncio.create_task(stream_output(merged_iterator))
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await asyncio.sleep(0.5)
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task.cancel()
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with pytest.raises(asyncio.CancelledError):
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await task
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for iterator in iterators:
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try:
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await asyncio.wait_for(anext(iterator), 1)
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except StopAsyncIteration:
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# All iterators should be cancelled and print this message.
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print("Iterator was cancelled normally")
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except (Exception, asyncio.CancelledError) as e:
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raise AssertionError() from e
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def test_deprecate_kwargs_always():
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@deprecate_kwargs("old_arg", is_deprecated=True)
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def dummy(*, old_arg: object = None, new_arg: object = None):
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pass
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with pytest.warns(DeprecationWarning, match="'old_arg'"):
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dummy(old_arg=1)
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with error_on_warning():
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dummy(new_arg=1)
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def test_deprecate_kwargs_never():
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@deprecate_kwargs("old_arg", is_deprecated=False)
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def dummy(*, old_arg: object = None, new_arg: object = None):
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pass
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with error_on_warning():
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dummy(old_arg=1)
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with error_on_warning():
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dummy(new_arg=1)
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def test_deprecate_kwargs_dynamic():
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is_deprecated = True
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@deprecate_kwargs("old_arg", is_deprecated=lambda: is_deprecated)
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def dummy(*, old_arg: object = None, new_arg: object = None):
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pass
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with pytest.warns(DeprecationWarning, match="'old_arg'"):
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dummy(old_arg=1)
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with error_on_warning():
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dummy(new_arg=1)
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is_deprecated = False
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with error_on_warning():
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dummy(old_arg=1)
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with error_on_warning():
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dummy(new_arg=1)
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def test_deprecate_kwargs_additional_message():
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@deprecate_kwargs("old_arg", is_deprecated=True, additional_message="abcd")
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def dummy(*, old_arg: object = None, new_arg: object = None):
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pass
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with pytest.warns(DeprecationWarning, match="abcd"):
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dummy(old_arg=1)
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