fix: make sure prefer-in-document only lint queries

[AntonNiklasson]

What:

Make sure the rule prefer-in-document only reports on what are actually queries from testing-library. If there's a variable passed to expect like so: expect(element).toBeDefined() we don't really know what the value is.

This change will make sure we only lint code like: expect(screen.findByText('lorem ipsum') and expect(findByTextId('list-item')

This solves #104

How:

If subject is anything other than CallExpression the checker method bails early.

Checklist:

• Documentation
• Tests
• Ready to be merged

[codecov]

Codecov Report

Merging #105 (2852d11) into master (f12acee) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #105   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           12        12           
  Lines          218       227    +9     
  Branches        27        31    +4     
=========================================
+ Hits           218       227    +9     

Impacted Files	Coverage Δ
src/rules/prefer-in-document.js	100.00% <100.00%> (ø)

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[benmonro]

@AntonNiklasson actually you'd peaked my interest so I implemented it in this PR: #107

going to close this PR in favor of that one as it handles more use cases. apologies for any duplicated effort. but would love to get your eyes on that PR if you don't mind.

[AntonNiklasson]

going to close this PR in favor of that one as it handles more use cases. apologies for any duplicated effort. but would love to get your eyes on that PR if you don't mind.

Ah, that makes sense. No worries on the duplicate effort, I just enjoy learning more about this. I'll take a look at your PR 👌