Design: KeyForge Testing

Responsibility: Hermetic Test Harness & Fixtures. Tier: 3 (The Tooling)

1. The Hermetic Workspace

The HermeticWorkspace struct provides an isolated, file-based environment for integration tests. It creates a temporary directory and populates it with "Golden Data" (Corpus, Keyboards, Weights).

use keyforge_testing::HermeticWorkspace;

#[test]
fn test_full_lifecycle() {
    let ws = HermeticWorkspace::new()
        .with_keyboard("ansi", default_ansi())
        .with_corpus("english", "the", 100);

    // Run test against ws.data_root
}

2. Golden Data

This crate contains the canonical "Truth" for testing: * Standard Keyboards: ANSI, ISO, ErgoDox. * Standard Corpora: English, Code. * Standard Rubrics: Default weights.