[fatso83]

Summary

• add a regression test for equal Buffer instances in deepEqual
• keep prototype enumerable-key comparison for URL-like objects while using own keys for array-like values such as Buffer and typed arrays
• document in code and commit history that Buffer offset reflects pooled backing-store layout rather than logical content

Test Plan

• npx mocha ./lib/deep-equal.test.js --grep "returns true for buffers with identical content"
• npm test -- --grep "array to arguments|arguments to array like object|buffers with identical content|prototype|typed array"
• npm test
• node - <<'NODE'
  const assert = require('node:assert');
  const deepEqual = require('./lib/deep-equal');
  assert(deepEqual(Buffer.from('Hello'), Buffer.from('Hello')));
  console.log('buffer reproduction passes');
  NODE

fixes #289 and sinonjs/sinon#2678

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (5f88086) to head (c17b9aa).
⚠️ Report is 45 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##              main      #291     +/-   ##
===========================================
  Coverage   100.00%   100.00%             
===========================================
  Files           28        29      +1     
  Lines          532      1624   +1092     
===========================================
+ Hits           532      1624   +1092     

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