Elamur Groupantsmath-tests-understand
The groupant beside math/tests/understand.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 |
| 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.
| id | type | label | where |
|---|---|---|---|
behavior_complement | behavior_complement | partial source derived model | behavior_complement |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
effect_boundary | effect_boundary | partial source derived model | effect_boundary |
skip_observation | skip_observation | partial source derived model | skip_observation |
temporary_resource | temporary_resource | partial source derived model | temporary_resource |
validation_scope | validation_scope | partial source derived model | validation_scope |
Model text
descriptant
math-tests-understand
Model-gated English fixtures and bounded missing-path guard.
Epoch 2026-10-31: source-derived partial model; prospective hypotheses retained before changes. Existing behavior unchanged except test helper path extraction. New bounded fixtures avoid annotated text/model/corpus/teacher paths. Child scopes use the parent syntax projection; lexical AST has no macro expansion or semantic resolution. Numeric thresholds and adapter differences are observations, not mathematical correctness proofs.
approximant
Forward relation
load resolves path then load_path existence check; missing returns None before Annotator load; present invokes loader and expect. Original tests return on None; frozen TSV read occurs only after successful load.
Domain
Original passing early-return tests are skips, not semantic evidence. New test creates fresh empty temp dir, asserts absent child then removes; no environment mutation.
Executable approximant gap
No useful measured percentage surrogate is supplied for these categorical parse/search/effect observations. Supported future caps are 1%, 2%, 5%, 10% only, requiring an explicit metric and reference comparison. No speed or accuracy guarantee follows.
invariant
Invariants and cost
Original passing early-return tests are skips, not semantic evidence. New test creates fresh empty temp dir, asserts absent child then removes; no environment mutation.
Cost
Metadata check and diagnostic; synthetic test adds directory create/remove. Full original model/annotation/frozen-fixture costs unexecuted.
Allocation failure, deep recursion, malformed public structures and universal numerical bounds are not verified.
composition
Scoped composition
Model-gated English fixtures and bounded missing-path guard.
load resolves path then load_path existence check; missing returns None before Annotator load; present invokes loader and expect. Original tests return on None; frozen TSV read occurs only after successful load.
load_path guards actual Understander load before ans/eval; original full fixtures and suite remain unexecuted. Missing-file guard coverage is not English understanding.
models
Typed relations
behavior_complement
Missing path excludes loading/evaluation/suite read; existing invalid model may panic, untested.
reverse_reconstruction
None compatible with absent paths and other exists=false causes; output cannot recover model state or parsed text.
effect_boundary
Existence precedes model load, frozen TSV follows successful load.
skip_observation
Four original tests may pass by skip; none ran.
temporary_resource
create_dir is exclusive; prior directory causes failure. Negative assertion control may need cleanup.
validation_scope
Only exact wave28_missing_path_skips_before_model_load integration filter ran.
tests
Source execution evidence
Safe command: cargo test -p math --test understand wave28_missing_path_skips_before_model_load -- --exact --test-threads=1
Named outcomes (twice debug, twice release; sorted names equal; exits0):
test wave28_missing_path_skips_before_model_load ... ok
One compiled assertion control for this source: compilation0, false expectation test101, exact byte restore, focused positive rerun0. These are actual source assertions, not copied implementations or semantic proof. Controls ran before rustfmt-only test-block formatting.
Only actual load_path missing-file branch. Original four English/model/frozen-suite tests excluded.
Strict math lib Clippy reports113 pre-existing production lints. No executable percentage surrogate, speed claim, model/corpus/teacher/GPU/full-school or held-out execution.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/math/tests/understand.rs.groupant/