Files
aiturk-hermes-ide/tests/agent/test_context_compressor_reasoning_fallback.py
T

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Python

"""Reasoning-model summaries must not trip the empty-content failure path.
Local / thinking backends (DeepSeek, Qwen, Kimi) often return content=""
with the usable text in reasoning / reasoning_content. _generate_summary
should accept that via extract_content_or_reasoning, bound the fallback
so a CoT dump cannot grow the transcript, and still fail closed when
both fields are empty (#11978).
"""
from types import SimpleNamespace
from unittest.mock import MagicMock, patch
from agent.context_compressor import ContextCompressor, SUMMARY_PREFIX
def _compressor(**overrides):
kwargs = dict(model="test/model", quiet_mode=True, tail_mode="legacy")
kwargs.update(overrides)
with patch("agent.context_compressor.get_model_context_length", return_value=100000):
return ContextCompressor(**kwargs)
def _turns():
return [
{"role": "user", "content": "do something"},
{"role": "assistant", "content": "ok"},
]
def test_empty_content_uses_reasoning_content():
response = SimpleNamespace(
choices=[SimpleNamespace(message=SimpleNamespace(
content="",
reasoning_content="kept reasoning summary",
))]
)
with patch("agent.context_compressor.call_llm", return_value=response):
out = _compressor()._generate_summary(_turns())
assert out is not None
assert "kept reasoning summary" in out
assert out.startswith(SUMMARY_PREFIX)
def test_whitespace_content_falls_back_for_dict_and_object():
class _Msg:
content = " "
reasoning_content = "object reasoning"
for message, needle in (
({"content": " ", "reasoning_content": "dict reasoning"}, "dict reasoning"),
(_Msg(), "object reasoning"),
):
response = {"choices": [{"message": message}]}
with patch("agent.context_compressor.call_llm", return_value=response):
out = _compressor()._generate_summary(_turns())
assert out is not None
assert needle in out
def test_oversized_reasoning_fallback_is_truncated():
reasoning = "t" * 20_000
response = SimpleNamespace(
choices=[SimpleNamespace(message=SimpleNamespace(
content="",
reasoning_content=reasoning,
))]
)
with patch("agent.context_compressor.call_llm", return_value=response):
out = _compressor()._generate_summary(_turns())
assert out is not None
assert reasoning not in out
assert len(out) < 15_000
def test_empty_content_without_reasoning_still_fails():
mock_response = MagicMock()
mock_response.choices = [MagicMock()]
mock_response.choices[0].message.content = None
with patch("agent.context_compressor.call_llm", return_value=mock_response):
out = _compressor()._generate_summary(_turns())
assert out is None