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hermes-webui/tests
nesquena-hermes 880350312a fix(streaming): fallback to model_metadata for context_length when compressor missing (#1318 follow-up) (#1348)
* fix(streaming): fallback to model_metadata for context_length when compressor missing (#1318 follow-up)

PR #1318 (shipped in v0.50.246 via PR #1341 + commit a5c10d5) persisted
context_length on the session so the context-ring indicator survives
page reloads. But the writer only fired when agent.context_compressor
was present and reported a non-zero value. Fresh agents, interrupted
streams, or compressors without the attribute would still leave
s.context_length=0 — and the indicator would still show 0% on reload.

This follow-up adds a fallback that calls
agent.model_metadata.get_model_context_length(model, base_url) when the
compressor didn't populate the value. The function returns a sensible
static context window for any known model (with a 256K default for
unknown models). Wrapped in a broad try/except because older
hermes-agent builds may not expose the helper.

Sourced from PR #1344 (@jasonjcwu) — extracted into this focused
follow-up after #1344 was closed as superseded by #1341.

Adds 6 structural tests covering: import + call presence, falsy-gate,
agent.model/base_url passing, exception swallowing, save() ordering,
result assignment.

Closes the data-flow gap in #1318 for the compressor-missing case.

* test: relax pr1341 block-size assertion to accommodate the new fallback

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Co-authored-by: nesquena-hermes <nesquena-hermes@users.noreply.github.com>
2026-04-30 10:27:56 -07:00
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