mjackson / mjackson/expect

Support tmatch in toHaveBeenCalledWith

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#107 4 comments 1 reaction 0 assignees View on GitHub

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Dominant language
JavaScript
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Description

Is there a way to do something like this:

expect(mySpy).toHaveBeenCalledWith('foo', 'bar', anythingOfType(Function));

Seems like we would have to modify the isEqual test helper.

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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

Start with the isEqual test helper mentioned in the issue and trace how toHaveBeenCalledWith compares arguments. Reproduce the anythingOfType(Function) example, then add coverage showing the requested matcher works while existing argument comparisons remain unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
testing
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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