test: add unit tests for TokenAwareConversationManager#2039
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FlorentLa wants to merge 2 commits intostrands-agents:mainfrom
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test: add unit tests for TokenAwareConversationManager#2039FlorentLa wants to merge 2 commits intostrands-agents:mainfrom
FlorentLa wants to merge 2 commits intostrands-agents:mainfrom
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April 2, 2026 16:21
Token-based context management that uses actual inputTokens from model responses to decide when to compact, instead of counting messages. Four-pass compaction strategy: 1. Sanitize — strip ANSI escape codes, collapse repeated lines 2. Truncate — replace oversized tool results with placeholders 3. Summarize — use model.stream() to summarize older messages 4. Trim — remove oldest messages as last resort The first user message is always preserved so the agent never loses sight of its original task. Summarization calls model.stream() directly, avoiding re-entrant agent invocation and deadlocks on _invocation_lock.
35 tests covering all four compaction passes, hook callbacks, state persistence, role alternation after summarization, and edge cases (too few messages, summarization failure fallback).
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Superseded by a standalone tests PR based on main (to pass label-size check). |
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Motivation
Adds comprehensive test coverage for the
TokenAwareConversationManagerintroduced in #2038. This PR is the test-only companion to keep each PR under the size limit.Depends on: #2038
Public API Changes
No public API changes.
Testing
35 unit tests covering:
BeforeModelCallEventcallback (token capture fromcycles[-2])model.stream()(no agent re-entry)get_state/restore_from_session)assistantrole)removed_message_counttracking across multiple compactions