hermes-agent/tests/agent/test_compressor_media_stripping.py

56 lines
2.1 KiB
Python

"""Tests for MEDIA directive stripping in context compaction (#14665).
MEDIA directives in assistant messages must not leak into compaction
summaries — if they do, the downstream model re-emits them as active
directives on the next turn.
"""
import pytest
from unittest.mock import patch
from agent.context_compressor import ContextCompressor
@pytest.fixture()
def compressor():
with patch("agent.context_compressor.get_model_context_length", return_value=100000):
return ContextCompressor(
model="test/model",
threshold_percent=0.85,
protect_first_n=2,
protect_last_n=2,
quiet_mode=True,
)
class TestMediaDirectiveStripping:
"""MEDIA directives must be stripped before summarization (#14665)."""
def test_media_directive_stripped_from_assistant(self, compressor):
turns = [
{"role": "assistant", "content": "Here is the audio MEDIA:/tmp/voice.ogg done."},
]
result = compressor._serialize_for_summary(turns)
assert "MEDIA:/tmp/voice.ogg" not in result
assert "[media attachment]" in result
def test_media_directive_stripped_from_tool_result(self, compressor):
turns = [
{"role": "tool", "tool_call_id": "t1", "content": "Generated MEDIA:/tmp/out.mp3 successfully"},
]
result = compressor._serialize_for_summary(turns)
assert "MEDIA:/tmp/out.mp3" not in result
assert "[media attachment]" in result
def test_non_media_content_preserved(self, compressor):
turns = [
{"role": "assistant", "content": "The file path is /tmp/test.txt and it works."},
]
result = compressor._serialize_for_summary(turns)
assert "/tmp/test.txt" in result
def test_multiple_media_directives(self, compressor):
turns = [
{"role": "assistant", "content": "MEDIA:/a.ogg and MEDIA:/b.mp3"},
]
result = compressor._serialize_for_summary(turns)
assert "MEDIA:" not in result
assert result.count("[media attachment]") == 2