hermes-agent/tests/run_agent/test_compression_trigger_excludes_reasoning.py
Teknium 6b81590c55
test: prune low-value tests suite-wide (wave 1) — 46,820 → 28,106 test functions
Systematic prune per AGENTS.md test policy, one pass over every major
test tree (gateway, hermes_cli, tools, agent, run_agent, plugins, cli,
cron, tui_gateway, honcho/openviking, root-level):

- DELETE: source-reading tests (read_text/getsource on prod files),
  change-detector tests (exact catalog counts, model-name snapshots,
  config version literals), mock-echo tests (assert a mock returns what
  it was told), assertion-free/trivial tests, near-duplicate
  parametrizations (boundaries + one representative kept), async/sync
  twin duplicates, cosmetic within-file variations.
- KEEP (mandatory): security/redaction/approval guards, message-role
  alternation invariants, prompt-caching/deterministic-call-id
  invariants, issue-number regression tests (deduped), E2E tests.
- 6 test files deleted outright (script-style/no-assert or fully
  redundant); conftest.py, fakes/, fixtures/ untouched.
- tests/acp/conftest.py added: autouse fixture stubs the live
  models.dev/GitHub/Copilot/Anthropic inventory fetches that ACP server
  tests performed on every session create — test_server.py 147s → 3.4s,
  and the tests are now genuinely hermetic.
- Sleep-based slowness shrunk where safe (codex_ttfb_watchdog,
  compression_concurrent_fork, etc.); no wall-clock assertion tightened.

Verification: full hermetic suite via scripts/run_tests.sh —
2439 files, 31,130 tests passed, 0 failed, 0 flaky retries, 315s wall
(baseline: 583s wall, 13,564s subprocess CPU).
2026-07-29 13:10:23 -07:00

48 lines
1.8 KiB
Python

"""Verify compression trigger excludes reasoning/completion tokens (#12026).
Thinking models (GLM-5.1, QwQ, DeepSeek R1) inflate completion_tokens with
reasoning tokens that don't consume context window space. The compression
trigger must use only prompt_tokens so sessions aren't prematurely split.
"""
import types
def _make_agent_stub(prompt_tokens, completion_tokens, threshold_tokens):
"""Create a minimal stub that exercises the compression check path."""
compressor = types.SimpleNamespace(
last_prompt_tokens=prompt_tokens,
last_completion_tokens=completion_tokens,
threshold_tokens=threshold_tokens,
)
# Replicate the fixed logic from run_agent.py ~line 11273
if compressor.last_prompt_tokens > 0:
real_tokens = compressor.last_prompt_tokens # Fixed: no completion
else:
real_tokens = 0
return real_tokens, compressor
class TestCompressionTriggerExcludesReasoning:
def test_high_reasoning_tokens_should_not_trigger_compression(self):
"""With the old bug, 40k prompt + 80k reasoning = 120k > 100k threshold.
After the fix, only 40k prompt is compared — no compression."""
real_tokens, comp = _make_agent_stub(
prompt_tokens=40_000,
completion_tokens=80_000, # reasoning-heavy model
threshold_tokens=100_000,
)
assert real_tokens == 40_000
assert real_tokens < comp.threshold_tokens, (
"Should NOT trigger compression — only prompt tokens matter"
)
def test_zero_prompt_tokens_falls_back(self):
"""When provider returns 0 prompt tokens, real_tokens is 0 (fallback path)."""
real_tokens, _ = _make_agent_stub(
prompt_tokens=0,
completion_tokens=50_000,
threshold_tokens=100_000,
)
assert real_tokens == 0