How to run cucumber scenario with and without javascript avoiding code duplication

Question

I was wondering if there is any way to run cucumber scenario with and without javascript without duplicating code.

I develop website that utilizes html5 navigation. However it should work find if browser doesn't support html5 features.

I would like to write cucumber test that would test navigation. I know I can test basic html navigation with simple cucumber scenario. And I can test html5 navigation with same scenario but with @javascript tag.

I would really love to avoid this code duplication. I was experimenting with around hooks, hoping that I could simple call block, then call same block with

Capybara.using_driver(Capybara.javascript_driver) { block.call }

However this doesn't work.

Anyone have any idea how to implement this?

P.S. I'm quite new to Ruby, and just started working with cucumber.

lucapette · Accepted Answer · 2012-06-06 07:40:09Z

1

It looks like you need two different scenarios. I'd use the Background feature to avoid step definitions but it's a matter of taste.

answered Jun 6, 2012 at 7:40

lucapette

20.7k6 gold badges67 silver badges59 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Luke Smith · Accepted Answer · 2012-10-23 15:49:57Z

1

Based on the solution by Jon M of using the environment variable, you need to set the current_driver before each scenario runs (which seems better than changing the default_driver).

Before do
  if ENV['USE_JS_DRIVER']
    Capybara.current_driver = Capybara.javascript_driver
  end
end

And then running

cucumber .
USE_JS_DRIVER=1 cucumber .

answered Oct 23, 2012 at 15:49

Luke Smith

24.4k8 gold badges32 silver badges29 bronze badges

Comments

Jon M · Accepted Answer · 2012-06-06 08:29:23Z

0

If you don't want to create separate features to deal with both types of browser, then one solution is to use an environment variable to tell cucumber which type of browser driver to use, and invoke cucumber twice.

You'd need to query the environment variable to set the correct driver, probably in env.rb:

if ENV['USE_JS_DRIVER']
    Capybara.current_driver = Capybara.javascript_driver
end

And then you could run either/both of:

cucumber .
USE_JS_DRIVER=1 cucumber .

You'd have to find some useful way of merging the results from both cucumber runs, but depending on your needs this could be a simpler solution than duplicating your scenarios.

answered Jun 6, 2012 at 8:29

Jon M

11.7k3 gold badges43 silver badges48 bronze badges

2 Comments

acube Over a year ago

I think I rather write preprocessor, that can extract steps that need be executed with and without @javascript. That way coverage would be consistent

Luke Smith Over a year ago

Just been banging my head against a table for the last few hours using this method. Only the first Scenario gets run using the javascript_driver (if you don't have @javascript tags) as the current_driver gets reset back to the default_driver before the next scenario runs. If you want all scenarios to run with the javascript_driver then you need to set the default_driver Capybara.default_driver = Capybara.javascript_driver

Collectives™ on Stack Overflow

How to run cucumber scenario with and without javascript avoiding code duplication

3 Answers 3

Comments

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related