WRQ-12037: Investigate how to mock core/platform and webos/platform i…

[vJIYEv]

Checklist

• I have read and understand the contribution guide
• A CHANGELOG entry is included
• At least one test case is included for this feature or bug fix
• Documentation was added or is not needed
• This is an API breaking change

Issue Resolved / Feature Added

Enact libraries like Sandstone have a few code to work on specific browser versions or specific platform environments but we don't test those logics in unit tests due to lack of mocking.
So we should investigate how to mock core/platform and webos/platform in unit tests

Resolution

We can mock "userAgent" of globalThis.navigator using "Object.defineProperty".
Because core/platform and webos/platform get platform information by parsing user agent, mocking user agent is same with mocking platform.
I added "InputField" unit test for example.

Additional Considerations

Links

WRQ-12037

Comments

Enact-DCO-1.0-Signed-off-by: Jiye Kim (jiye.kim@lge.com)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.58%. Comparing base (612b167) to head (fee4d3f).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1605      +/-   ##
===========================================
+ Coverage    81.51%   81.58%   +0.07%     
===========================================
  Files          148      148              
  Lines         6631     6631              
  Branches      1957     1957              
===========================================
+ Hits          5405     5410       +5     
+ Misses         933      930       -3     
+ Partials       293      291       -2     

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[vJIYEv]

Travis error occurs because enactjs/enact#3233 is not merged.