Organizing Tests in Jest – Jeff Lombard – Medium

Organizing Tests in Jest  #jest #javascript #react #softwaretesting #reactjs

  • This includes organization.I’ve seen two popular ways suggested for organizing tests in Jest:Putting all of your test code into a neatly organized /tests directory.Putting your test code next to the files they are testing.Both of these suggestions are valid, but to have the elegance of a master craftsman, we should consider the level of the test that is being written.Testing LevelsThere are many testing levels, but for simplicity we’re just going to talk about two here.
  • “Unit testing refers to tests that verify the functionality of a specific section of code, usually at the function level.
  • |- /main| |- index.js| |- index.test.jsIntegration tests run against many lines of code in many files.
  • So include the type of test right in the name of the and api.int.test.jsConclusionAn ideal set up would look something like this:|- /main| |- index.js| |- index.unit.test.js|- /supporting| |- fetch.js|- /tests| |- /int| | |- api.int.test.jsThat way you can easily find your tests.
  • For unit testing run jest unit and for integration testing run jest int.As with anything, there is no single way of doing this.

If you haven’t already tried out Jest, you should. Even if you’re not using React. It’s dead simple and loaded with some cool features like snapshot testing. Jest does a great job of keeping reports…
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React Native: Build Your Own Mobile Apps

React Native: Build Your Own Mobile Apps
☞

  • The discussions about the concepts of React Native will be supplemented by you building three great example applications .
  • So you should take this course if you would love to learn how to make mobile applications quickly and effectively.
  • Please keep in mind that this course is meant to show you as much React Native code as possible.
  • Overall, it should take around 4 hours to complete.
  • If you’re looking for a thorough exploration of es6 or javascript syntax, this course may be too advanced for you though.

React Native Tutorial: Learn to create the iOS and Android applications of your dreams.
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