import { describe, it, expect } from 'vitest';
import { layoutForest, type TidyNode } from './tidyTree';

// tidyTree is domain-agnostic: it lays out abstract { id, width, children }
// nodes, so these tests use hand-built trees with no PersonNodeDTO import.
const W = 160;
const GAP = 40;

function leaf(id: string, width = W): TidyNode {
	return { id, width, children: [] };
}

describe('tidyTree — leaf base case', () => {
	it('a single leaf lays out at x = 0', () => {
		const a = leaf('a');
		const x = layoutForest([a], GAP);
		expect(x.get('a')).toBe(0);
	});
});