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https://github.com/NousResearch/hermes-agent.git
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c75789f245
Three tests for the #61099 salvage: OpenRouter attribution headers present after switching to openrouter.ai, Kimi User-Agent sentinel present after switching to api.kimi.com, and stale headers cleared when switching to a provider with no URL-specific headers. 2/3 fail on unpatched main (DID NOT ATTACH), confirming the bug.
100 lines
3.5 KiB
Python
100 lines
3.5 KiB
Python
"""Regression tests for #61099: switch_model must reapply provider-specific
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default headers when it rebuilds _client_kwargs from scratch.
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Without _apply_client_headers_for_base_url() in the rebuild path, a /model
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switch drops OpenRouter attribution headers (HTTP-Referer / X-Title → logs
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show "Unknown") and, worse, functional headers like Kimi's User-Agent
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sentinel (403 without it).
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"""
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from unittest.mock import MagicMock, patch
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from run_agent import AIAgent
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from agent.context_compressor import ContextCompressor
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def _make_agent(provider="copilot", base_url="https://api.githubcopilot.com") -> AIAgent:
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"""Minimal AIAgent with a context_compressor, skipping __init__."""
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agent = AIAgent.__new__(AIAgent)
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agent.model = "claude-opus-4.8"
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agent.provider = provider
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agent.base_url = base_url
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agent.api_key = "sk-primary"
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agent.api_mode = "chat_completions"
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agent.client = MagicMock()
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agent.quiet_mode = True
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agent._config_context_length = None
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agent._client_kwargs = {"api_key": "sk-primary", "base_url": base_url}
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compressor = ContextCompressor(
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model=agent.model,
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threshold_percent=0.50,
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base_url=base_url,
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api_key="sk-primary",
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provider=provider,
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quiet_mode=True,
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config_context_length=None,
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)
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agent.context_compressor = compressor
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agent._primary_runtime = {}
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return agent
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@patch("agent.model_metadata.get_model_context_length", return_value=131_072)
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def test_switch_to_openrouter_reapplies_attribution_headers(mock_ctx_len):
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"""Switching to an openrouter.ai base_url must attach the OpenRouter
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attribution headers (HTTP-Referer / X-Title) to the rebuilt client
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kwargs — not ship a bare api_key+base_url client (#61099)."""
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agent = _make_agent(provider="copilot", base_url="https://api.githubcopilot.com")
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agent.switch_model(
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"deepseek/deepseek-chat",
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"openrouter",
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api_key="sk-or-new",
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base_url="https://openrouter.ai/api/v1",
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)
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headers = agent._client_kwargs.get("default_headers") or {}
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assert "HTTP-Referer" in headers
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assert headers.get("X-Title")
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@patch("agent.model_metadata.get_model_context_length", return_value=131_072)
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def test_switch_to_kimi_reapplies_user_agent_sentinel(mock_ctx_len):
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"""Kimi requires a User-Agent sentinel; a switch to api.kimi.com must
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carry it or every request 403s."""
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agent = _make_agent(provider="openrouter", base_url="https://openrouter.ai/api/v1")
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agent.switch_model(
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"kimi-k2",
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"kimi",
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api_key="sk-kimi",
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base_url="https://api.kimi.com/v1",
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)
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headers = agent._client_kwargs.get("default_headers") or {}
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assert headers.get("User-Agent", "").startswith("claude-code/")
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@patch("agent.model_metadata.get_model_context_length", return_value=131_072)
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def test_switch_away_from_headered_provider_clears_stale_headers(mock_ctx_len):
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"""Switching FROM a headered provider TO one with no URL-specific headers
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must not carry the old provider's headers along."""
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agent = _make_agent(provider="openrouter", base_url="https://openrouter.ai/api/v1")
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agent._client_kwargs["default_headers"] = {
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"HTTP-Referer": "https://hermes-agent.nousresearch.com",
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"X-Title": "Hermes Agent",
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}
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agent.switch_model(
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"MiniMax-M3",
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"custom:minimax",
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api_key="sk-minimax",
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base_url="https://api.minimax.io/v1",
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)
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headers = agent._client_kwargs.get("default_headers") or {}
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assert "HTTP-Referer" not in headers
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assert "X-Title" not in headers
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