27 lines
1014 B
Python
27 lines
1014 B
Python
"""Tests for fallback-eviction gating on failed runs (#7130).
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When a run fails, the gateway must NOT evict the cached agent — doing so
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forces MCP reinit on the next message, creating a CPU-burning restart loop.
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Eviction should only happen on successful runs where fallback activated.
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"""
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import sys
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from pathlib import Path
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sys.path.insert(0, str(Path(__file__).resolve().parent.parent.parent))
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class TestFallbackEvictionGating:
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"""The fallback-eviction code path should skip eviction on failed runs."""
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def test_failed_run_does_not_evict_cached_agent(self):
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"""When result has failed=True, the cached agent should NOT be evicted."""
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# The fix: `and not _run_failed` guard on the eviction check.
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# Simulate the variables that the eviction block uses.
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result = {"failed": True, "final_response": None, "error": "400 invalid model"}
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_run_failed = result.get("failed") if result else False
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assert _run_failed is True, "Failed run should be detected"
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