Agent: hopper
Adds 56 new integration tests covering the observable end-of-turn
behaviors in the streaming module:
- Timing footer formatting (5 tests): verifies user-facing timing display
with various durations, token counts, and context percentages
- Tool call duplicate detection (6 tests): ensures identical sequential
tool calls are detected while different tools/args are not
- Empty response detection (9 tests): validates detection of empty,
whitespace-only, and timing-only responses that trigger auto-continue
- Connection error classification (5 tests): verifies EOF, connection,
chunk, and body errors are correctly identified for graceful recovery
- Tool output summary formatting (17 tests): covers read_file, write_file,
str_replace, remember, screenshot, coverage, and rehydrate summaries
- Duration formatting (4 tests): milliseconds, seconds, minutes, zero
- Text truncation (4 tests): short/long strings, multiline, flag behavior
- LLM token cleaning (3 tests): removal of stop tokens like <|im_end|>
- Edge cases (4 tests): empty inputs, unicode handling, large numbers
All tests are blackbox/characterization style - they test observable
outputs through stable public interfaces without encoding internal
implementation details. Tests remain stable under refactoring that
preserves behavior.
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