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fix(learn): example rows skip null instrument entries when written and read

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Static-profile feature records carry the plane-only instruments as null; every
one of the 937 live example rows was unreadable (TypeError), which blocked
ousast learn evaluate and freezing exp-002 units.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
This commit is contained in:
Marius Ciepluch
2026-10-02 16:54:24 +02:00
co-authored by Claude Fable 5.1
parent ef1f4daa99
commit cb85542578
2 changed files with 21 additions and 2 deletions
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tests/test_learn_examples.py
+17
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@@ -212,3 +212,20 @@ def test_side_reader_reads_every_pair_kind_source(tmp_path: Path, monkeypatch: p
lab = label(source="pairs", source_ref=name, pin="")
assert reader(lab, "vulnerable") == ["def handler(request):", " return 1"]
assert reader.license(lab) == "MIT"
def test_null_instruments_are_skipped_when_reading_and_writing() -> None:
"""Static-profile feature records carry the plane-only instruments as null; an example row must load (the live
store had 937 unreadable rows on 2026-10-02) and never write such a null itself."""
from openultrasast.learn.examples import Example
row = {
"id": "x", "kind": "example", "repo": "o/r", "pin": "p", "run": "learn-memory", "task": "build", "population": "pairs",
"split": "train", "image": "host", "candidate": "a.py::f", "family": "injection", "language": "python",
"profile": "static", "label": 1, "source": "pairs", "group": "o/r", "frameworks": None, "unit": "pin",
"direction": None, "pin_role": "vulnerable", "weight": 1.0, "license": "MIT", "x": {},
"instruments": {"language": {"state": "ran"}, "verify": None, "agree": None, "model_sinks": None},
"roles": [], "excerpt_sha": "0" * 64, "label_set_digest": "1" * 64,
} # fmt: skip
example = Example.from_row(row)
assert set(example.instruments) == {"language"}