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test: restored wrapped ring continues like the live ring - #209
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Covers resuming a wrapped RotatingKVCache from a hybrid-cache snapshot and then prefilling a chunk and decoding, with keep=0 and keep=2. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Summary
Add a regression test for the hybrid prompt cache with
--ctx-size(#207): aRotatingKVCacherestored from a wrapped snapshot must keep behaving like the uninterrupted live ring.The test saves a ring that has wrapped (maxSize 16, 40 tokens), restores it through
restoreExactPrefix, then feeds the restored ring and the live ring the same 5-token prefill chunk plus 6 single-token decode steps, and asserts identicaloffset,metaStateand state window. It runs withkeep = 0andkeep = 2.Tests only; no source changes.
Test plan
HybridPromptCacheTestspasses locally on currentmainAI disclosure
This PR was prepared with AI assistance (Claude Code).
🤖 Generated with Claude Code