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106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
"""Tests for hermes_cli.context_switch_guard."""
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from __future__ import annotations
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from types import SimpleNamespace
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from hermes_cli.context_switch_guard import merge_preflight_compression_warning
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from hermes_cli.model_switch import ModelSwitchResult
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def _result(*, model: str = "small-model") -> ModelSwitchResult:
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return ModelSwitchResult(
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success=True,
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new_model=model,
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target_provider="openrouter",
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provider_changed=False,
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api_key="k",
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base_url="https://example.com/v1",
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api_mode="chat_completions",
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provider_label="openrouter",
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model_info={"context_length": 32_000},
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)
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def _compressor(monkeypatch, *, context_length: int = 200_000):
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from agent.context_compressor import ContextCompressor
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monkeypatch.setattr(
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"agent.context_compressor.get_model_context_length",
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lambda *a, **k: context_length,
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)
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return ContextCompressor(
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model="big-model",
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threshold_percent=0.5,
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protect_first_n=3,
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protect_last_n=20,
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quiet_mode=True,
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config_context_length=context_length,
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)
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def test_no_warning_when_below_new_threshold(monkeypatch):
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monkeypatch.setattr(
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"hermes_cli.context_switch_guard.resolve_display_context_length",
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lambda *a, **k: 32_000,
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)
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cc = _compressor(monkeypatch)
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cc.last_prompt_tokens = 10_000
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agent = SimpleNamespace(
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context_compressor=cc,
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compression_enabled=True,
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conversation_history=[],
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base_url="",
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api_key="",
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)
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result = _result()
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merge_preflight_compression_warning(result, agent=agent)
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assert not result.warning_message
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def test_warns_when_estimate_exceeds_new_threshold(monkeypatch):
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monkeypatch.setattr(
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"hermes_cli.context_switch_guard.resolve_display_context_length",
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lambda *a, **k: 32_000,
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)
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monkeypatch.setattr(
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"hermes_cli.context_switch_guard._estimate_tokens",
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lambda *a, **k: 90_000,
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)
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cc = _compressor(monkeypatch)
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agent = SimpleNamespace(
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context_compressor=cc,
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compression_enabled=True,
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conversation_history=[],
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base_url="",
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api_key="",
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)
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result = _result()
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merge_preflight_compression_warning(result, agent=agent)
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assert result.warning_message
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assert "preflight compression" in result.warning_message
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assert "shrinks" in result.warning_message
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def test_merge_appends_to_existing_warning(monkeypatch):
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monkeypatch.setattr(
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"hermes_cli.context_switch_guard._estimate_tokens",
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lambda *a, **k: 90_000,
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)
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monkeypatch.setattr(
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"hermes_cli.context_switch_guard.resolve_display_context_length",
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lambda *a, **k: 32_000,
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)
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cc = _compressor(monkeypatch)
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agent = SimpleNamespace(
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context_compressor=cc,
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compression_enabled=True,
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base_url="",
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api_key="",
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)
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result = _result()
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result.warning_message = "expensive"
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merge_preflight_compression_warning(result, agent=agent)
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assert "expensive" in result.warning_message
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assert "preflight compression" in result.warning_message
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