FA-10434 / Caching / Member archive
A successful read resets LFU frequency instead of accumulating it · case 04
A successful read resets LFU frequency instead of accumulating it.
Case contract
Increment the count only for a resident key; a lookup miss must not insert a frequency entry.
Why this case matters
A deterministic cache state transformation. Inputs are copied or treated as immutable; no remote storage, real clock, or concurrent interleaving is simulated.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| fixture 1 | {"a": 1} | {"a": 4} | Failed |
MEMBER ARCHIVE
The complete case is available to members.
This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
Member access is invitation-based. Sign in with your invited account to inspect the sources.
Sign in to the archive ↗