Elamur Groupantsmova-elephant-lsm-tests
The groupant beside tools/elephant/tests/lsm.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| Approximant | partial | Forward approximant |
| Ast | partial | syntax.json |
| Composition | partial | Composition |
| Cost | partial | Cost |
| Descriptant | present | Descriptant |
| Invariant | partial | Invariant |
| Tests | finite evidence | Tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| relation | type | label | where |
|---|---|---|---|
| Behavior complement | behavior complement | partial source derived model | Behavior complement |
| Reverse reconstruction | reverse reconstruction | partial source derived model | Reverse reconstruction |
Model text
Descriptant
The store against the full rebuild on synthetic passes: equality section by section, order and merge-tree freedom, exact retraction, reprogramming, and the refusals. Source: tools/elephant/tests/lsm.rs.
Forward approximant
Two passes over six CoNLL-U files; stores tamped in different trees; graphs compared with every section but provenance.
Invariant
Each assertion is a finite check.
Cost
Under a second.
Composition
Parent: elephant.
Behavior complement
Skips nothing; no model needed. Evidence status: source-derived model with finite checks, not a proof.
Reverse reconstruction
Assertion messages name the property.
Tests
Checks
Itself. These are finite fixtures and measurements; not a proof.
History
2026-11-06 · document
Epoch 2026-11-06
First model, written with the source (the Elephant made incremental and an animal on Mova).
Provenance
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/elephant/tests/lsm.rs.groupant/