FA-46570 / Bounded deques / Member archive

Deque block view reports the parent directory length · case 05

Deque block view reports the parent directory length.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Create a read-only deque block-range view over a valid half-open block interval. Pin each selected block exactly once, allocate one view identity, and retain the parent owner ID.

Why this case matters

Controlled bounded deque implementation model with explicit storage and lifecycle observations.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
0	`[[4, 7], {"2": 1, "4": 6, "7": 3}, 9, 10, 8, false, 3]`	`[[4, 7], {"2": 1, "4": 6, "7": 3}, 9, 10, 8, false, 2]`	Failed

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