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Feature: `render_template` matcher
The `render_template` matcher is used to specify that a request renders a
given template or layout. It delegates to
[`assert_template`](https://api.rubyonrails.org/v5.2/classes/ActionController/TemplateAssertions.html#method-i-assert_template)
It is available in controller specs (spec/controllers) and request
specs (spec/requests).
NOTE: use `redirect_to(:action => 'new')` for redirects, not `render_template`.
Scenario: Using `render_template` with three possible options
Given a file named "spec/controllers/gadgets_spec.rb" with:
"""ruby
require "rails_helper"
RSpec.describe GadgetsController , type: :controller do
describe "GET #index" do
subject { get :index }
it "renders the index template" do
expect(subject).to render_template(:index)
expect(subject).to render_template("index")
expect(subject).to render_template("gadgets/index")
end
it "does not render a different template" do
expect(subject).to_not render_template("gadgets/show")
end
end
end
"""
When I run `rspec spec/controllers/gadgets_spec.rb`
Then the examples should all pass
Scenario: Specify that a request renders a given layout
Given a file named "spec/controllers/gadgets_spec.rb" with:
"""ruby
require "rails_helper"
RSpec.describe GadgetsController , type: :controller do
describe "GET #index" do
subject { get :index }
it "renders the application layout" do
expect(subject).to render_template("layouts/application")
end
it "does not render a different layout" do
expect(subject).to_not render_template("layouts/admin")
end
end
end
"""
When I run `rspec spec/controllers/gadgets_spec.rb`
Then the examples should all pass
Scenario: Using `render_template` in a view spec
Given a file named "spec/views/gadgets/index.html.erb_spec.rb" with:
"""ruby
require "rails_helper"
RSpec.describe "gadgets/index" , type: :view do
it "renders the index template" do
assign(:gadgets, [Gadget.create!])
render
expect(view).to render_template(:index)
expect(view).to render_template("index")
expect(view).to render_template("gadgets/index")
end
it "does not render a different template" do
expect(view).to_not render_template("gadgets/show")
end
end
"""
When I run `rspec spec/views`
Then the examples should all pass
|
