What I recommend is to limit yourself to only use the Javascript driver when you need to. Sometimes, you can identify how the previous test affects the current one that is randomly failing. Just wanted to point out that since Capybara 2. I am still awfully worried about how they chose to do it. RSpec and Minitest are the two most commonly used test frameworks for Rails applications. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

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In this example, we use jQuery javascrupt change the text on the sign up button to register. You can use the library to drive JS, headless and Selenium, however it is missing the ‘capybara’ shared API between each of the different ‘worlds’. Capybara’s find method waits by default for an element to appear for a certain amount of time.

Fill in your details below or click an icon to log in: Cucumber-JS is the closest you will get in Javascriot If you ask Capybara for page. If you always need JavaScript in your tests, you could specify Poltergeist to be the default driver in Capybara.

Although something like pry is useful if you want to see the state of your variables, sometimes we want to know what is going on with the HTML on our web page.


In the past, I had written off testing the Javascript in capybaara Sinatra apps as being not worth the pain of setting up. In this article, we’ll cover five tips for writing effective Capybara tests, and how to use them with RSpec and Minitest. There are four built in methods.

If you forget the after: There are two ways of executing JavaScript using Capybara. It uses the WebKit framework as a headless browser. To cpaybara it, you need to make sure Capybara is waiting for results, and willing to wait long enough.

Did you find an error? Do what it says. By default, it will run in headless mode using Rack:: Likely a series of those.

Struggling Towards Reliable Capybara Javascript Testing

Set up continuous integration and delivery for your project in a minute. So you either need to have an expectation in your flaky tests that checks for a change that occurs when all ajax requests are completed or with enough knowledge about your app it may be possible to write code to make sure there are no ajax requests ongoing if ALL ajax requests are made via jquery then you could have code that keeps checking until the request count is 0 for instance and run that in an after hook that you need to define so it runs before the capybara added after hook that resets sessions….


Finally, another source of problems is the asset pipeline.

Rather than litter js: There’s a trade-off here, because using drivers other than Rack:: For help, check the guide. Using Selenium means that your tests will be running using Firefox. Now any example added inside that describe will use Selenium.

5 Tips for More Effective Capybara Tests – Semaphore

Email required Address never made public. You are commenting using your WordPress. I have not ultimately solved the intermittent failuresbut I have significantly decreased their frequency, making the test suite more usable.

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JavaScript Testing with Selenium & Capybara-Webkit – Jumpstart Lab Curriculum

Capybara-webkit is where I eventually landed for running my own tests, after having issues accessing other windows with Poltergeist. Do not do this. The second one is: Would you like to learn how to build sustainable Rails apps and ship more often?