timmy-talking-turd/tests/domain.test.js

import test from 'node:test';
import assert from 'node:assert/strict';

import {
  bucketForBristolType,
  buildTimmySummary,
  detectUrgentFlags,
  detectUrgentText,
  exportLedger,
  hasUrgentLedgerContext,
  photoQualityMessage,
  sanitizeEntry,
} from '../src/domain.js';

test('maps Bristol types to clinically grounded buckets', () => {
  assert.equal(bucketForBristolType(1), 'constipation');
  assert.equal(bucketForBristolType(2), 'constipation');
  assert.equal(bucketForBristolType(3), 'typical');
  assert.equal(bucketForBristolType(4), 'typical');
  assert.equal(bucketForBristolType(5), 'loose');
  assert.equal(bucketForBristolType(7), 'loose');
  assert.equal(bucketForBristolType(0), 'unknown');
});

test('escalates reported blood, black stool, severe pain, vomiting, fever, or inability to pass gas', () => {
  const result = detectUrgentFlags({
    blood: true,
    blackOrDarkRed: false,
    severePain: true,
    vomiting: false,
    fever: false,
    cannotPassGas: false,
  });
  assert.equal(result.urgent, true);
  assert.deepEqual(result.flags, ['blood', 'severePain']);
  assert.match(result.message, /medical care/i);
});

test('does not invent reassurance when no urgent flags are reported', () => {
  const result = detectUrgentFlags({});
  assert.equal(result.urgent, false);
  assert.deepEqual(result.flags, []);
  assert.match(result.message, /not a diagnosis/i);
});

test('detects common urgent symptom language without matching unrelated blood wording', () => {
  for (const message of [
    'I have rectal bleeding',
    'There is blood in my stool',
    'My stool is black',
    'I have severe stomach pain',
    'I am throwing up and have a fever',
    'I threw up',
    'I puked twice',
    'I am barfing',
    'I barfed',
    'I hurled',
    'She hurls',
    'I am upchucking',
    'I spewed',
    'She spews',
    'I tossed my cookies',
    'She tosses her cookies',
    'He tossed his cookies',
    'Someone is tossing their cookies',
    'I lost my lunch',
    'She loses her lunch',
    'He lost his lunch',
    'Someone is losing their lunch',
    'I have emesis',
    'I am unable to pass gas',
  ]) assert.equal(detectUrgentText(message).urgent, true, message);
  assert.equal(detectUrgentText('My blood pressure was checked').urgent, false);
  for (const nonVomiting of [
    'She hurled the javelin across the field.',
    'He hurls insults when angry.',
    'They are hurling rocks at the wall.',
    'He spewed hateful rhetoric.',
    'The volcano spews ash.',
    'The pipe is spewing water.',
  ]) assert.equal(detectUrgentText(nonVomiting).urgent, false, nonVomiting);
});

test('detects urgent flags or language in confirmed ledger context', () => {
  assert.equal(hasUrgentLedgerContext([{ symptoms: { cannotPassGas: true }, note: '' }]), true);
  assert.equal(hasUrgentLedgerContext([{ symptoms: {}, note: 'I have rectal bleeding' }]), true);
  assert.equal(hasUrgentLedgerContext([{ symptoms: {}, note: 'ordinary entry' }]), false);
});

test('Timmy summary reports patterns without clearing food or diagnosing disease', () => {
  const entries = [
    { bristolType: 3, occurredAt: '2026-08-15T08:00:00.000Z' },
    { bristolType: 4, occurredAt: '2026-08-16T08:00:00.000Z' },
    { bristolType: 6, occurredAt: '2026-08-17T08:00:00.000Z' },
  ];
  const summary = buildTimmySummary(entries);
  assert.match(summary, /3 logs/);
  assert.match(summary, /2 typical/);
  assert.doesNotMatch(summary, /safe|diagnos|Taco Bell|clear/i);
});

test('sanitizes a user entry to the MVP data contract', () => {
  const entry = sanitizeEntry({
    id: 'abc',
    occurredAt: '2026-08-17T12:00:00.000Z',
    bristolType: 4,
    color: 'brown',
    urgency: 2,
    discomfort: 1,
    note: 'After lunch',
    photoDataUrl: 'data:image/jpeg;base64,abc',
    unexpected: 'drop me',
  });
  assert.deepEqual(Object.keys(entry).sort(), [
    'bristolType', 'color', 'discomfort', 'id', 'note', 'occurredAt',
    'photoDataUrl', 'symptoms', 'urgency'
  ].sort());
  assert.equal(entry.unexpected, undefined);
});

test('photo quality guidance is deterministic and does not claim visual diagnosis', () => {
  assert.match(photoQualityMessage({ width: 300, height: 300, brightness: 0.5 }), /closer/i);
  assert.match(photoQualityMessage({ width: 1200, height: 900, brightness: 0.02 }), /light/i);
  assert.match(photoQualityMessage({ width: 1200, height: 900, brightness: 0.5 }), /review/i);
  assert.doesNotMatch(photoQualityMessage({ width: 1200, height: 900, brightness: 0.5 }), /type [1-7]|disease|diagnos/i);
});

test('export ledger is portable JSON with version and entries', () => {
  const text = exportLedger([{ id: 'a', bristolType: 4 }], '2026-08-18T00:00:00.000Z');
  const parsed = JSON.parse(text);
  assert.equal(parsed.schemaVersion, 1);
  assert.equal(parsed.exportedAt, '2026-08-18T00:00:00.000Z');
  assert.equal(parsed.entries.length, 1);
});