expected and actual look the same when unsing some emojis.

[jendrikw]

Try this:

import { assert } from 'chai';

assert.strictEqual('️✅', '✅');

Output:

AssertionError: expected '️✅' to equal '✅'
    at _AssertionError (file:///home/projects/stackblitz-starters-o5akycef/node_modules/chai/index.js:182:13)
    at assert (file:///home/projects/stackblitz-starters-o5akycef/node_modules/chai/index.js:1538:13)
    at assertEqual (file:///home/projects/stackblitz-starters-o5akycef/node_modules/chai/index.js:2276:10)
    at <anonymous> (file:///home/projects/stackblitz-starters-o5akycef/node_modules/chai/index.js:1722:25)
    at assert.strictEqual (file:///home/projects/stackblitz-starters-o5akycef/node_modules/chai/index.js:3439:56)
    at  (file:///home/projects/stackblitz-starters-o5akycef/index.js:14:14)
    at _0x49baf9 (https://stackblitzstarterso5akycef-o1x1.w-corp-staticblitz.com/blitz.cf284e50.js:31:819814)
    at run (https://stackblitzstarterso5akycef-o1x1.w-corp-staticblitz.com/blitz.cf284e50.js:31:820546)
    at _0x39c6d6 (https://stackblitzstarterso5akycef-o1x1.w-corp-staticblitz.com/blitz.cf284e50.js:31:835720)
    at _evaluate (https://stackblitzstarterso5akycef-o1x1.w-corp-staticblitz.com/blitz.cf284e50.js:31:836069)
    at evaluate (https://stackblitzstarterso5akycef-o1x1.w-corp-staticblitz.com/blitz.cf284e50.js:31:832499)
    at run (node:internal/modules/esm/module_job:158:3371) {
  actual: '️✅',
  expected: '✅',
  showDiff: true,
  operator: 'strictEqual'
}

I don't know how I'm supposed to fix the issue. Is there an option to print the code points of each string?

[keithamus]

We could probably try to output particular non-printables as their unicode equivalents to help with this, e.g.

'️✅'.replace(/([\p{C}\p{Z}\p{M}])/u, (_, c) => `\\u${c.charCodeAt(0).toString(16)}`)
// "\\ufe0f✅" 

PRs welcome to that effect, though it would be good to have a litany of tests to test characters in those ranges to ensure we're not converting legitimate printable characters.