Testing singular resource controller with RSpec

Question

I have defined a singular resource in my routes.rb which looks like this

Rails.application.routes.draw do
  resource :dog, only: [:create], to: "dog#create", controller: "dog"
end

After that I've defined a controller with a create action like this

class DogController < ApplicationController
  def create
    render json: {}, status: :ok
  end
end

And now I'm trying to test it out with RSpec like this

require "rails_helper"

describe DogController do
  it "works" do
    post :create, params: { foo: :bar }
  end
end

This is throwing this error instead of passing:

ActionController::UrlGenerationError:
       No route matches {:action=>"create", :controller=>"dog", :foo=>:bar}

What am I doing wrong?

shime · Accepted Answer · 2016-12-05 17:09:16Z

1

Change your route to

resource :dog, only: [:create], :controller => "dog"

It is better to use plural controllers even if its a singular resource

http://edgeguides.rubyonrails.org/routing.html#singular-resources

edited Dec 5, 2016 at 17:09

shime

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answered Dec 5, 2016 at 16:43

usha

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2 Comments

shime Over a year ago

it's passing if I change controller name to DogsController, but I would really like to keep it singular and I would hate to change names of my controllers just to appease testing framework

shime Over a year ago

removing to: argument makes it work as a singular, so I edited your question

Arisah Ijeoma · Accepted Answer · 2016-12-07 22:59:34Z

0

Your create action is not taking in any parameter. It's just rendering json and returning a status code

answered Dec 7, 2016 at 22:59

Arisah Ijeoma

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