Elamur Groupantswordgraph-test-build
The groupant beside wordgraph/tests/build.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 | Approximant |
| Ast | partial | syntax.json |
| Composition | partial | Composition |
| Cost | partial | Cost |
| Descriptant | present | Descriptant |
| Invariant | partial | Invariant |
| Tests | executed bounded checks | 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
End-to-end check on a synthetic corpus of 2 × 3000 sentences (four noun–verb pairs at 90 %, two isa classes, a frequent out-of-dictionary name): two builds byte-identical, reversed pass order identical, every list within its bound, the expected top subjects, isa(dog, pet), the registry line, the hint, and the negative control.
Approximant
signal(G) = mean PMI of the 4 true nsubj pairs − mean PMI of the 12 false ones. Asserts signal(real) > 1 bit and |signal(shuffled)| < 0.3 bit.
Invariant
The synthetic corpus is a pure function of its seeds (splitmix64), so the test is deterministic; each run uses a fresh directory under the cargo target tmp dir.
Cost
About 20 ms (2026-11-06).
Composition
Drives pass::run, compile::build and Graph as a user would.
Tests
This file is the test.
Behavior complement
Does not check real-corpus quality, memory, or the CLI; does not clean its temporary directories.
Reverse reconstruction
Not applicable: a check, not a transformation.
Provenance
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/wordgraph/tests/build.rs.groupant/