CODEWITHSUNDEEP
ruby-on-railsrspec
Robin
Robin

Reputation: 915

Rspec test to render no layout

I can test my controller to render a certain layout with

expect { get :index }.to render_template(layout: 'my_layout')

But how can I test the controller to render NO layout?

The following first expectation passes, but be careful: the second expectation also passes! (testing the same code)

expect { get :index }.to render_template(layout: false)
expect { get :index }.to render_template(layout: true)

In Nov 2008, @david-chelimsky said:

One way I've handled this successfully is to integrate_views for this one example (in its own group) and specify that html elements from the layout are not present in the form. It's a brittle example, but it's only one.

I dont want to check the rendered view, but I did not find any better solution so far.

Does someone has a good approach?

Upvotes: 13

Views: 5384

Answers (3)

Prasanna
Prasanna

Reputation: 11544

I did it using this one liner

expect { get :index }.to render_template(layout: [])

Versions: Rspec = 3.4.0 , Rails ~> 4.2.5

Upvotes: 0

MrDanA
MrDanA

Reputation: 11647

While not a pretty one liner (you can always add a helper method), I've found that you can do this:

get :index
@templates.keys.should include(nil)

I tested this and it only works when I set layout false. Based on the implementation of assert_template it gathers some information in to instance variables. The relevant ones are @templates and @layouts - each is a hash keyed by a string corresponding with how many times it was rendered.

@templates will contain the template used for your action (e.g "users/show") but @layouts will only list layouts. If no layout was used, it looks like {nil=>1}. This seems the only thing you can tap in to.

So maybe it might be nice to make a helper method or custom matcher to do this.

Upvotes: 3

Anezio Campos
Anezio Campos

Reputation: 1555

In my tests when there is no layout I just check if it is not loading "application" layout

expect { get :index }.to_not render_template(layout: "application")

Upvotes: 4

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