| import { describe, it } from 'node:test'; | |
| import assert from 'node:assert/strict'; | |
| import { sha256, verifyHash, computeEntryHash } from '../src/hash.js'; | |
| describe('hash', () => { | |
| it('sha256 produces consistent output', () => { | |
| assert.equal(sha256('hello'), sha256('hello')); | |
| }); | |
| it('sha256 produces different output for different input', () => { | |
| assert.notEqual(sha256('hello'), sha256('world')); | |
| }); | |
| it('verifyHash returns true for matching hash', () => { | |
| const h = sha256('test data'); | |
| assert.equal(verifyHash('test data', h), true); | |
| }); | |
| it('verifyHash returns false for mismatched hash', () => { | |
| assert.equal(verifyHash('test data', '0000000000000000000000000000000000000000000000000000000000000000'), false); | |
| }); | |
| it('computeEntryHash produces deterministic output', () => { | |
| const entry = { seq: 1, prev_hash: 'GENESIS', event_id: 'ha_000001', agent: 'SCRIBE', action: 'query', verdict: 'approve', timestamp: '2026-01-01T00:00:00Z' }; | |
| assert.equal(computeEntryHash(entry), computeEntryHash(entry)); | |
| }); | |
| it('computeEntryHash changes with different seq', () => { | |
| const base = { seq: 1, prev_hash: 'GENESIS', event_id: 'ha_000001', agent: 'SCRIBE', action: 'query', verdict: 'approve', timestamp: '2026-01-01T00:00:00Z' }; | |
| assert.notEqual(computeEntryHash(base), computeEntryHash({ ...base, seq: 2 })); | |
| }); | |
| }); | |