undefined method `get' for #<RSpec::Core::ExampleGroup::Nested_1:0x00000106db51f8>

RSpec doesn't know that your spec is a controller spec, so your examples don't have access to a get method.

RSpec 2.x assumes that everything in the controllers directory is a controller spec.

This was changed in RSpec 3:

File-type inference disabled by default Previously we automatically inferred spec type from a file location, this was a surprising behaviour for new users and undesirable for some veteran users so from RSpec 3 onwards this behaviour must be explicitly opted into with:

RSpec.configure do |config|
  config.infer_spec_type_from_file_location!
end

https://www.relishapp.com/rspec/rspec-rails/docs/upgrade#file-type-inference-disabled

In the rspec-rails README:

Controller specs default to residing in the spec/controllers folder. Tagging any context with the metadata :type => :controller treats it's examples as controller specs.

An example of setting the controller context metadata for RSpec:

describe ToolsController, :type => :controller do
    # ...
end

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If at all you are using 'spec/features', you may need to add the following to your 'spec_helper.rb'

config.include RSpec::Rails::RequestExampleGroup, type: :feature

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In Rspec 3.x the spec type is not automatically inferred from a file location, and you must manually set it, add this to the spec_helper.rb

RSpec.configure do |config|
  config.infer_spec_type_from_file_location!
end

Rspec upgrade

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I was able to fix this issue in my app by adding require 'rspec/rails' to my spec_helper file.

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For others looking into this. I was trying to track down a undefined method 'get' error. My issue was that I had the get in a describe block make sure your get is in an it block.

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Solved by replacing the line
describe PagesController do with RSpec.describe PagesController, :type => :controller do
in the _spec.rb file in spec folder.
Also to prevent deprecation warning use expect(response).to be_success instead of response should be_success.
PS: Didn't have to add require "rails_helper".

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I got this error when I forgot to add require 'spec_helper' to the top of my spec file or --require spec_helper to my .rspec file.

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this can happen under the following conditions:

your spec does not have :type => :controller [type: :controller in newer Ruby] your spec is not in the controllers folder or you not have set config.infer_spec_type_from_file_location!

Either #1 or #2 must be setup for your spec. Also, this can happen under this condition as well:

you have written a spec using the old-style require 'spec_helper' instead of using the newer require 'rails_helper'. You will note that rails_helper now includes spec_helper (to generate both see the Rspec installation steps)

cross referencing GH issue https://github.com/rails/rails-controller-testing/issues/36

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If you used rspec to generate the .rspec file, you should change the content from:

--require spec_helper

to:

--require rails_helper

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An alternative is to specify type: :request for your spec. For example:

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

end

Example taken from here https://www.relishapp.com/rspec/rspec-rails/docs/request-specs/request-spec.

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I had this issue when I added

gem 'rspec'

to my Gemfile in the rails project. It should be

gem 'rspec'
gem 'rspec-rails'

(or just rspec-rails). After

bundle install

re-create the spec directory with

rspec --init

and put your xxx_spec.rb file in the appropriate directory (won't work if it is in the spec directory). Beginners error but maybe this helps somebody ;) Here's the link that helped me:

https://www.relishapp.com/rspec/rspec-rails/docs/gettingstarted

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For Access request get,post,patch and delete, You can use both request and controller in :type

I prefer :request type for API Rspec and simple :controller for controllers Rspec

Here For Request,

RSpec.describe ToolsController, type: 'request' do

   it "renders buttons_widgets partial" do
     get :buttons_widgets
     response.should render_template("buttons_widgets")
   end

end

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In Gemfile:

In ":Test" block, add

gem 'rspec'

gem 'rspec-rails'

In your Test file:

On top of the test file, you should also require 'rails-helper' library

**In the Test file, when you describe the controller, your should mention that the type of the class is "Controller" like this:

describe MyController, type: :controller do

note: Don't forget to use 'Bundle install' after changing the GemFile

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