Adds style failing test case for Vue Testing Library #439
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
Test case reproducing issue #438.
From master, I ran
yarn add @testing-library/vue --dev, and also had to bump@vue/test-utilsto1.3.0otherwise it wouldn't work. I probably messed up something in theyarn.lockfile so apologies for that.I believe
window.getComputedStyleAPI would work to assert this behavior based on it working here (https://codesandbox.io/s/vue-testing-sample-input-forked-drjsm?file=/src/components/Button.test.js). Let me know if there's a better way of testing that.I'm not sure if this is the reproducible case you were looking for so if there's something else I can/should do please let me know so I can improve this PR. Thank you!