[rspec-users] View Specs

David Chelimsky dchelimsky at gmail.com
Fri Dec 24 06:03:34 EST 2010


On Wed, Dec 22, 2010 at 12:58 PM, Daryn <darynholmes at gmail.com> wrote:
> Hi,
>
> I was using WebRat and I had view specs that looked like this:
>
> describe "expenses/new.html.erb" do
>  it "displays 'New Expense'" do
>    render
>    rendered.should include("New Expense")
>  end
> end
>
> I am now using Capybara and you cannot use those matchers in View
> Specs.
> What should my view specs look like?
>
> If I try using: get "expenses/edit"
> I end up with: undefined method `get' for
> #<RSpec::Core::ExampleGroup::Nested_1:0xaf364ac>
>
>
> Am I meant to keep using render, rendered?
> How should the spec above be re-written?
> And the nested one below?
>
> it "renders a form to create an expense" do
>      render
>    rendered.should have_selector("form",
>      :method => "post",
>      :action => expenses_path
>      ) do |form|
>
>        form.should have_selector("input",
>          :type => "text",
>          :name => "expense[name]")
>
>        form.should have_selector("input",
>          :type => "text",
>          :name => "expense[limit]")
>
>        form.should have_selector("input",
>          :type => "submit",
>          :value => "Add")
>
>        form.should have_selector("a",
>            :content => "Cancel",
>            :href => expenses_path)
>      end
>    end

render(), rendered(), and the include() matcher all come from rspec or
rails, not Webrat or Capybara.

get() is from rails, but only used in controller and request specs
(which are thin wrappers for rails' functional and integration tests).

The only thing you've lost for now is Webrat's have_selector()
matcher. For right now your best bet is rails' assert_select:

http://api.rubyonrails.org/classes/ActionDispatch/Assertions/SelectorAssertions.html#method-i-assert_select

Sometime soon, Capybara's counterparts, have_selector() and
have_xpath() will also be available in view specs. How soon, I'm not
sure, but Jonas and I worked on this a bit together last month at
RubyConf.

HTH,
David


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