Is ajax testing with therubyracer (or execjs) worth trying out?

I'm looking to challenge myself by integrating and testing JavaScript code within a Ruby environment. My main goal is to utilize Ruby to set up the database, interact with it using my JavaScript model, and verify the JavaScript state without resorting to mocking.

While attempting to load my client libraries into a v8 context, I encountered various issues with therubyracer such as 'window not defined' and 'userAgent not defined' errors.

In my efforts to test my JavaScript code, I've explored using headless browsers. However, they lack the necessary Ruby context required for these specific scenarios.

My current hypothesis suggests that I may need to integrate a browser or DOM simulator into a v8 context, but I am unsure about available libraries for this task. Do you have any alternative suggestions or insights?

How can I successfully achieve this integration and testing process?

javascriptrubyajaxtestingexecjs

Answer №1

I have experience using capybara-webkit for tasks like this. It's not necessary to rely on RSpec helpers; you can simply create a in-memory browser instance and interact with your HTML/JavaScript directly. One advantage is the availability of the evaluate_script method, which allows interaction with the browser's JavaScript context.

The decision to use this approach depends on the type of "ruby context" needed to be accessible from the JavaScript side.

If you're interested, there are other projects worth exploring:

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