60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
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import { describe, test } from 'node:test';
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import assert from 'node:assert/strict';
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import fc from 'fast-check';
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import { Arbiter } from '../../src/core/Arbiter.js';
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function keyFor(srcId, dstId) {
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return `${srcId}->${dstId}`;
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}
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describe('Fast-check: direct relations invariants', () => {
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test('direct checks match add/remove sequence', () => {
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fc.assert(
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fc.property(
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fc.integer({ min: 1, max: 5 }),
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fc.integer({ min: 1, max: 5 }),
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fc.array(
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fc.record({
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src: fc.integer({ min: 0, max: 4 }),
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dst: fc.integer({ min: 0, max: 4 }),
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op: fc.constantFrom('add', 'remove')
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}),
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{ minLength: 1, maxLength: 50 }
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),
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(userCount, docCount, ops) => {
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const arbiter = new Arbiter();
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arbiter.setRelationConfig('owner', { type: 'direct' });
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for (let u = 0; u < userCount; u++) {
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arbiter.addNode(`user:${u}`, 'user');
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}
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for (let d = 0; d < docCount; d++) {
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arbiter.addNode(`doc:${d}`, 'doc');
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}
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const model = new Set();
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for (const op of ops) {
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const src = op.src % userCount;
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const dst = op.dst % docCount;
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if (op.op === 'add') {
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arbiter.addRelation(`user:${src}`, 'owner', `doc:${dst}`, 1.0);
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model.add(keyFor(src, dst));
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} else {
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arbiter.removeRelation(`user:${src}`, 'owner', `doc:${dst}`);
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model.delete(keyFor(src, dst));
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}
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}
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for (let u = 0; u < userCount; u++) {
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for (let d = 0; d < docCount; d++) {
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const result = arbiter.check(`user:${u}`, 'owner', `doc:${d}`);
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const hasEdge = model.has(keyFor(u, d));
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assert.strictEqual(result.possibility > 0, hasEdge);
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}
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}
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}
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),
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{ numRuns: 50 }
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);
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});
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});
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