qunitjs / qunitjs/qunit

deepEqual should not compare constructors

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Component: Assert
Dominant language
JavaScript
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Description

Currently, deepEqual will do a strict equality comparison on the constructor of each value. This defeats the purpose of deepEqual in that it prevents it from matching structurally, and leads to the myriad of issue reported in qunit over the years around comparisons of Array vs TypedArray and the like.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Search the JavaScript source for the deepEqual implementation and read its nearby comparison tests first. Confirm the completed change by checking that structural comparisons no longer depend on constructors, including the Array versus TypedArray cases described in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
testing
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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