36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
from __future__ import annotations
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import unittest
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from backend.llm.stream import OpenAIStreamAccumulator
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class OpenAIStreamAccumulatorTests(unittest.TestCase):
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def test_repeated_delta_chunks_are_preserved_as_model_output(self) -> None:
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accumulator = OpenAIStreamAccumulator()
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self.assertEqual(accumulator.feed({"delta": {"content": "yes"}}), "yes")
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self.assertEqual(accumulator.feed({"delta": {"content": "yes"}}), "yes")
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self.assertEqual(accumulator.text, "yesyes")
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def test_final_snapshot_can_add_a_missing_suffix(self) -> None:
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accumulator = OpenAIStreamAccumulator()
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self.assertEqual(accumulator.feed({"delta": {"content": "first"}}), "first")
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self.assertEqual(
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accumulator.feed({"message": {"content": "first second"}}),
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" second",
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)
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self.assertEqual(accumulator.text, "first second")
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def test_incompatible_final_snapshot_is_not_appended_twice(self) -> None:
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accumulator = OpenAIStreamAccumulator()
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accumulator.feed({"delta": {"content": "streamed answer"}})
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self.assertEqual(
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accumulator.feed({"message": {"content": "rewritten final answer"}}),
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"",
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)
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self.assertEqual(accumulator.text, "streamed answer")
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if __name__ == "__main__":
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unittest.main()
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