Digital Drosophila Archive
29 lines
1.6 KiB
Markdown
29 lines
1.6 KiB
Markdown
# Pre-registration engineering checks
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No new brain trajectory or conditioning result existed during these repairs.
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Only the new, unregistered AM code was changed; all prior models remained
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read-only. The new experiment root was provisioned empty and owned by the
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existing project user before preparation.
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The first server-only unit test run had 74 tests: 73 passed, one failed
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(`test_static25_repeat_and_single_validation`, copied-input SHA mismatch).
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The local machine had not reproduced that failure. A direct synthetic probe
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established the cause, rather than changing a tolerance or expected result:
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- A temporary NPZ was overwritten with different, same-size (556-byte) data.
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- Its device, inode, length, mtime_ns and ctime_ns were identical before/after.
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- The fresh SHA changed from
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`38219e908f1b500423c9fe1a70b6070103f878903c5f005c79e387fca8b449c4` to
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`fa45373dd04bf5f9d574a5329d42f8259c99c70aa69b077673aaef8c95bf0a02`.
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- The timestamp-keyed digest cache returned the former SHA for the latter
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bytes. Both timestamps were `1790749632756475909` in the observed probe.
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The new comparator was corrected to read fresh bytes for SHA verification and
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to include content hashes in static cache identity. A deliberate same-stat,
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same-length rewrite test guards this issue. No waiting/sleep workaround, relaxed
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hash equality, modified old data, or scientific rerun is used to hide it.
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This note is a human-readable preparation record, not a saved raw unit-test
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transcript. The subsequent complete server test transcript is recorded during
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formal preparation and must pass without skipped Torch compatibility tests.
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