By default, it will run in headless mode using Rack:: Sign In You must be logged in to comment. For example, if you’re working on a component which has a sign up button, when there’s already a sign up button further up the page, you might end up never testing the second one unless you scope your page lookup query. The first one matches on exact count. To fix it, you need to make sure Capybara is waiting for results, and willing to wait long enough. Which test was the previously run test will vary every run with a different seed, using rspec random testing. So your JS feature test is simulating interactions with a web page, making all sorts of Javascript happen.

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Rails itself in multiple versions; Capybara, with rspec, or even minitest; with DatabaseCleaner probably not but not presumedly; with your choice of JS browser simulator driver.

If you want to dapybara a single test with WebKit, add js: Capybara-webkit is where I eventually landed for running my own tests, after having issues accessing other windows with Poltergeist.

selenium – Is there a capybara for ? – Stack Overflow

Jarl 2, 3 17 Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. This is pretty easy to do as all the js tests are tagged I was using Cucumber, I assume the same can be done in rspec. Capybara is an acceptance testing framework for capybar applications. What if, at this point, there iavascript still code running in the Rails app?


Capybara’s find method waits by default for an element to appear for a certain amount of time. I have struggled many times, trying capybarz fix randomly breaking tests. The main thread in the main process that is executing your tests in order.

Javascript Testing With Capybara and Cucumber – Larry Price

In the second scenario, Capybara knows to use the webdriver we set up previously when it sees the javascript tag. So I abandoned it. The time is measured in seconds and the default value is two.

There is a good talk at http: For this post, I assume you already have a capybara-cucumber project set up. You know what did it?

By continuing to use this website, you agree to their use. The amount of time the Javascript takes to produce the expected change on the page can slightly or significantly differ each time you run the tests, with no code changes.

To subscribe javasxript need to have a Semaphore account. I guess I appreciate that Rails is trying to improve this by making Capybara testing an officially supported feature.

One tip I would like to add, is to also check the test. No, I was talking about a generic web acceptance testing framework.

Go back and look at the DatabaseCleaner docs and see if you are set up as currently recommended. These could also be performed in Minitest’s setup and teardown methods, if every test in this file requires JavaScript.


Leave a Reply Cancel reply Enter your comment here To install either run gem install selenium-webdriver or toss selenium-webdriver into your Gemfile javasxript run bundle install.

This also adds some safety for websites that use some JavaScript but not on all pages.

If only there were a real browser that we could run without the GUI! Using this setting can prevent many tests from breaking without your knowledge, javascipt of more than one of the same elements on a page. And similarly, in the main thread, moving from one rspec instruction do a click to another see if page body has content does not happen instantaneously.

Javascript Testing With Capybara and Cucumber

I have not ultimately solved capygara intermittent failuresbut I have significantly decreased their frequency, making the test suite more usable.

If you have a set of examples to run with JavaScript, wrap them in a describe block with a before-all and after-all like this:.

I just set them both. We get almost all the speed of being headless with Rack:: By default Capybara uses Rack:: Notify me of new posts via email.