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Project: RSpec Rails 3.9

Publisher: RSpec

request spec

Request specs provide a thin wrapper around Rails' integration tests, and are
designed to drive behavior through the full stack, including routing
(provided by Rails) and without stubbing (that's up to you).

Request specs are marked by :type => :request or if you have set
config.infer_spec_type_from_file_location! by placing them in spec/requests.

With request specs, you can:

  • specify a single request
  • specify multiple requests across multiple controllers
  • specify multiple requests across multiple sessions

Check the rails documentation on integration tests for more information.

RSpec provides two matchers that delegate to Rails assertions:

render_template # delegates to assert_template
redirect_to     # delegates to assert_redirected_to

Check the Rails docs for details on these methods as well.

Capybara is no longer supported in
request specs as of Capybara 2.0.0. The recommended way to use Capybara is
with feature specs.

Scenarios
  1. specify managing a Widget with Rails integration methods
  2. specify managing a Widget with Rails integration methods
  3. requesting a JSON response
  4. requesting a JSON response
  5. providing JSON data
  6. providing JSON data
  • @rails_pre_5
specify managing a Widget with Rails integration methods
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget and redirects to the Widget's page" do
    get "/widgets/new"
    expect(response).to render_template(:new)

    post "/widgets", :widget => {:name => "My Widget"}

    expect(response).to redirect_to(assigns(:widget))
    follow_redirect!

    expect(response).to render_template(:show)
    expect(response.body).to include("Widget was successfully created.")
  end

  it "does not render a different template" do
    get "/widgets/new"
    expect(response).to_not render_template(:show)
  end
end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass
  • @rails_post_5
specify managing a Widget with Rails integration methods
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget and redirects to the Widget's page" do
    get "/widgets/new"
    expect(response).to render_template(:new)

    post "/widgets", :params => { :widget => {:name => "My Widget"} }

    expect(response).to redirect_to(assigns(:widget))
    follow_redirect!

    expect(response).to render_template(:show)
    expect(response.body).to include("Widget was successfully created.")
  end

  it "does not render a different template" do
    get "/widgets/new"
    expect(response).to_not render_template(:show)
  end
end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass
  • @unsupported-on-rails-3-0
  • @rails_pre_5
requesting a JSON response
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget" do
    headers = {
      "ACCEPT" => "application/json",     # This is what Rails 4 accepts
      "HTTP_ACCEPT" => "application/json" # This is what Rails 3 accepts
    }
    post "/widgets", { :widget => {:name => "My Widget"} }, headers

    expect(response.content_type).to eq("application/json")
    expect(response).to have_http_status(:created)
  end

end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass
  • @rails_post_5
requesting a JSON response
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget" do
    headers = {
      "ACCEPT" => "application/json",     # This is what Rails 4 accepts
      "HTTP_ACCEPT" => "application/json" # This is what Rails 3 accepts
    }
    post "/widgets", :params => { :widget => {:name => "My Widget"} }, :headers => headers

    expect(response.content_type).to eq("application/json")
    expect(response).to have_http_status(:created)
  end

end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass
  • @rails_pre_5
providing JSON data
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget and redirects to the Widget's page" do
    headers = { "CONTENT_TYPE" => "application/json" }
    post "/widgets", '{ "widget": { "name":"My Widget" } }', headers
    expect(response).to redirect_to(assigns(:widget))
  end

end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass
  • @rails_post_5
providing JSON data
Given
a file named "spec/requests/widget_management_spec.rb" with: 
require "rails_helper"

RSpec.describe "Widget management", :type => :request do

  it "creates a Widget and redirects to the Widget's page" do
    headers = { "CONTENT_TYPE" => "application/json" }
    post "/widgets", :params => '{ "widget": { "name":"My Widget" } }', :headers => headers
    expect(response).to redirect_to(assigns(:widget))
  end

end
When
I run rspec spec/requests/widget_management_spec.rb
Then
the example should pass

Last published over 2 years ago by Jon Rowe.