---
title: "mlab-tests-suite-synthetic-suite — Mova code model"
description: "Mova code model of mlab/tests/suite.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/mlab/tests/suite.rs.groupant/synthetic-suite.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

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# mlab-tests-suite-synthetic-suite

The groupant beside mlab/tests/suite.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

- **kind:** groupant_fragment
- **status:** partial source bound model
- **source:** [`mlab/tests/suite.rs`](https://github.com/ElamurAI/mova-free/blob/main/mlab/tests/suite.rs)
- **source SHA-256:** `44bf1111361f38af…`
- **covers:** Synthetic parser normalization, fresh interpreter and comparator edge tests. (bytes 11368–12668)
- **part of:** [mlab-tests-suite](https://md.groupants.elamur.ai/free/en/mova/mlab/tests/suite.rs.groupant/)
- **repository folder:** [`mlab/tests/suite.rs.groupant/synthetic-suite.groupant`](https://github.com/ElamurAI/mova-free/tree/main/mlab/tests/suite.rs.groupant/synthetic-suite.groupant)
- **repository commit:** `855da7bd4a7b`

> **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](#approximant) |
| **ast** | partial | `../syntax.json` |
| **cost** | symbolic source derived | [invariant](#invariant) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant](#invariant) |
| **tests** | executed bounded checks | [tests](#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](#behavior-complement) |
| `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |
| `header_projection` | header_projection | partial source derived model | [header_projection](#header-projection) |
| `code_trim` | code_trim | partial source derived model | [code_trim](#code-trim) |
| `isolation` | isolation | partial source derived model | [isolation](#isolation) |
| `line_coordinates` | line_coordinates | partial source derived model | [line_coordinates](#line-coordinates) |

## Model text


### descriptant

#### mlab-tests-suite-synthetic-suite

Synthetic parser normalization, fresh interpreter and comparator edge tests.

##### Epoch 2026-10-31

Half-open source bytes [11368,12668); bound by parent source hash and scoped byte hash. Model covers only this fragment; parent composition explains joins.

### approximant

#### Scoped forward relation

Parse two small scenarios, run each mode with counted memory FS factory, assert all pass and calls4; inspect empty/prefix/extra/missing/earliest line checks.

##### Domain and gap

Source-generated states within resource limits. Categorical relation has no executable percent surrogate.

### invariant

#### Scoped invariant

Fourth header field ignored and absent category becomes empty.

##### Cost

Two tiny scenarios per mode, four filesystem factory calls; finite fixed comparator cases.

### models

## Scoped typed relations

### behavior_complement

Factory-count oracle excludes fewer/more than four calls; second-scenario output excludes leaked x; comparator oracle excludes treating a second LF as absent.

### reverse_reconstruction

Four calls imply count, not identity of arbitrary filesystem implementations; green comparator fixtures do not exhaust strings.

### header_projection

Fourth header field ignored and absent category becomes empty.

### code_trim

Trailing whitespace-only code line removed.

### isolation

x assigned in first scenario absent in second.

### line_coordinates

Mismatch reports1-based line and <end> sentinel.


### tests

#### Evidence scope

Parent selected tests: sha256_self_check, parse_error_runs_nothing, wave30_synthetic_suite_boundaries. This fragment shares parent syntax and finite checks; no separate test count or complete fragment coverage claim. Assertion-control association and unexecuted paths are in parent tests.md and source-test-map.json.