Use Capybara on any HTML fragment or page
I think this pattern is really useful not just for upgrading suites from Webrat, but really anywhere you have an HTML fragment or string that you’d like to use Capybara’s matchers on.
Related cards:
Async control flow in JavaScript: Promises, Microtasks, async/await
Slides for Henning's talk on Sep 21st 2017.
Understanding sync vs. async control flow
Talking to synchronous (or "blocking") API
print('script start')
html = get('/foo')
print(html)
print('s...
Configuring User Agents with Capybara + Selenium Webdriver
A while ago we were working on an application that had an entire version specially created for mobiles, such as the iPhone. This specific application was entirely tested with Capybara, Steak and Selenium Webdriver. Although the test suite wasn’t t...
Lightning Talk: Coverage based Test Case Prioritization in Ruby on Rails
For my computer science bachelor's thesis I programmed and evaluated a CLI Test Case Prioritization (TCP) tool for makandra. It has been written as a Ruby Gem and was tested and evaluated against one Ruby on Rails project....
JavaScript without jQuery (presentation from 2019-01-21)
Summary
- We want to move away from jQuery in future projects
- Motivations are performance, bundle size and general trends for the web platform.
- The native DOM API is much nicer than it used to be, and we can polyfill the missing pieces
- Un...
JavaScript: Testing whether the browser is online or offline
You can use the code below to check whether the browser can make connections to the current site:
await isOnline() // resolves to true or false
Limitations of navigator.onLine
While you can use the...
How to use html_safe correctly
Back in the war, Rails developers had to manually HTML-escape user-supplied text before it was rendered in a view. If only a single piece of user-supplied text was rendered without prior escaping, it enabled [XSS attacks](http://en.wikipedia.org/w...
Capybara: Testing file downloads
Download buttons can be difficult to test, especially with Selenium. Depending on browser, user settings and response headers, one of three things can happen:
- The browser shows a "Save as..." dialog. Since it is a modal dialog, we can no longer...
Matching elements on complex web pages with Webrat
XPath matchers can be combined with CSS-selector matchers. This is really useful if not, for example, the content of an element should be matched but the element itself like in the following example. Here a form is used to display data as default ...
RSpec: Leverage the power of Capybara Finders and Matchers for view specs
View specs are a powerful tool to test several rendering paths by their cases instead of using a more costing feature spec. This is especially useful because they become quite co...
Click on a piece of text in Cucumber / Capyabra
The step definition below lets you write:
When I click on "Foo"
This is useful in Selenium features where the element you click on is not necessarily a link or button, but could be any HTML element with a Javascript event binding.
The e...