In a controller spec, how to find a specific tag in the generated view?

Question

I know integration tests are preferred but I need this to be ran in a controller test, I'm testing a gem injecting html code in the view, especially with xhr so this can't be run in a feature spec (if it can, please explain me how :) )

So with rspec controller tests you can assert a selector is present (with capybara) :

response.body.should have_selector('#foobar')

has_selector? will call the all method from capybara to find the selector.

What I want to do is get the last child of body and then assert that its id is something in particular.

AFAIK it's not possible to do this with have_selector.

What I would do is :

all('body:first-child').first.id.should == '#foobar'

However, with Capybara DSL, all is defined like this (more or less):

def all(*args)
  page.all(*args)
end

And the page will be empty unless I use visit but it's for integrations specs.

How can I use capybara all method inside an rspec controller test ?

Intrepidd Intrepidd · Accepted Answer · 2014-03-10T12:12:23

I can't test it right now but after some googling it seems like this would do the trick

def page
  Capybara::Node::Simple.new(response.body)
end

Source

In a controller spec, how to find a specific tag in the generated view?

1 Answers