Is it more advantageous to load the entire Backbone+RequireJS application upfront during testing?

In the process of selecting a setup for testing a web application that incorporates Backbone and RequireJS.

I plan to focus primarily on conducting unit tests from JavaScript, but I'm unsure whether it's more effective to load the entire app prior to invoking the testing framework or utilize RequireJS to dynamically load only the modules being tested in each scenario.

Since this platform is aimed solely at Q&A and doesn't facilitate discussions, let me rephrase: Are there any compelling arguments against loading the entire app upfront when conducting unit tests?

javascriptunit-testingrequirejsmocha.js

Answer №1

To ensure the reliability of your code, it is recommended to conduct unit tests on each individual Model/Collection/View. Attempting to test the entire application in a single unit test can prove challenging when trying to cover all possible scenarios for a module. If you are utilizing requireJS, consider using squireJS to mock most of the module's dependencies.

In addition to unit testing, it is advisable to incorporate integration tests that assess the overall functionality of the application in a headless browser with tools such as selenium, casperJS, or capybara.

Answer №2

If you're using requirejs, there are two approaches to consider when it comes to loading upfront:

  • During the development phase, without utilizing r.js, and relying solely on the configuration set in requirejs.config
  • After optimizing with r.js, allowing for module restructuring based on r.js configuration

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