| 1 | """Tests for transcript compaction and summary compression.""" |
| 2 | |
| 3 | from __future__ import annotations |
| 4 | |
| 5 | from loader.llm.base import Message, Role |
| 6 | from loader.runtime.compaction import ( |
| 7 | SummaryCompressionBudget, |
| 8 | compact_session_messages, |
| 9 | compress_summary, |
| 10 | ) |
| 11 | |
| 12 | |
| 13 | def test_compress_summary_dedupes_lines_and_collapses_whitespace() -> None: |
| 14 | summary = "\n".join( |
| 15 | [ |
| 16 | "Conversation summary:", |
| 17 | "- Scope: compact earlier messages.", |
| 18 | "- Scope: compact earlier messages.", |
| 19 | "- Current work: finish session persistence.", |
| 20 | "- Current work: finish session persistence.", |
| 21 | ] |
| 22 | ) |
| 23 | |
| 24 | result = compress_summary(summary, budget=SummaryCompressionBudget()) |
| 25 | |
| 26 | assert result.removed_duplicate_lines == 2 |
| 27 | assert "- Scope: compact earlier messages." in result.summary |
| 28 | assert " compact earlier" not in result.summary |
| 29 | |
| 30 | |
| 31 | def test_compact_session_messages_preserves_recent_messages() -> None: |
| 32 | messages = [ |
| 33 | Message(role=Role.USER, content="First task framing"), |
| 34 | Message(role=Role.ASSISTANT, content="Initial plan"), |
| 35 | Message(role=Role.USER, content="Focus on runtime quality"), |
| 36 | Message(role=Role.ASSISTANT, content="Tracked updated files"), |
| 37 | Message(role=Role.USER, content="Verify the result"), |
| 38 | Message(role=Role.ASSISTANT, content="Verification passed"), |
| 39 | ] |
| 40 | |
| 41 | result = compact_session_messages( |
| 42 | messages, |
| 43 | keep_last_messages=4, |
| 44 | current_task="Improve Loader runtime continuity", |
| 45 | ) |
| 46 | |
| 47 | assert result is not None |
| 48 | assert result.removed_message_count == 2 |
| 49 | assert [message.content for message in result.messages[-4:]] == [ |
| 50 | message.content for message in messages[-4:] |
| 51 | ] |
| 52 | assert result.messages[0].content.startswith("[COMPACTED CONTEXT]") |
| 53 | assert "Continuation instructions:" in result.messages[0].content |