DoorkeeperのAccessTokenが必要なリクエストをテストする #Rails

doorkeeper-gem を使用している環境で、発行される AccessToken を Header に必要とする API アクセス (Request Spec) をテストするときの設定方法を備忘録として残します。

前提の環境

Doorkeeper
RSpec
FactoryBot

コントローラとルーティング例はこんな感じ ※ 公式 Doc から少しいじってます

app/controllers/api/v1/credentials_controller.rb

class Api::V1::CredentialsController < Api::V1::ApiController
  before_action :doorkeeper_authorize!
  respond_to :json

  # GET /api/v1/credential
  def show
    respond_with current_resource_owner
  end

  private

  def current_resource_owner
    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
  end
end

config/routes.rb

Rails.application.routes.draw do
  use_doorkeeper
  namespace :api do
    namespace :v1 do
      resource :credential, only: [:show]
    end
  end
end

Factory を用意

ディレクトリ構成

spec
└── factories
    └── doorkeeper
        ├── access_grants.rb # 今回は使わない
        ├── access_tokens.rb
        └── applications.rb

spec/factories/access_grants/applications.rb

FactoryBot.define do
  factory :doorkeeper_application, class: 'Doorkeeper::Application' do
    sequence(:name) { |n| "Application #{n}" }
    redirect_uri { 'https://app.com/callback' }
  end
end

spec/factories/access_grants/access_grants.rb

FactoryBot.define do
  factory :doorkeeper_access_grant, class: 'Doorkeeper::AccessGrant' do
    transient do
      user { build :user }
    end

    association :application, factory: :doorkeeper_application
    resource_owner_id { user.id }
    redirect_uri { 'https://app.com/callback' }
    expires_in { 100 }
    scopes { 'read public' }
  end
end

spec/factories/access_grants/access_tokens.rb

FactoryBot.define do
  factory :doorkeeper_access_token, class: 'Doorkeeper::AccessToken' do
    transient do
      user { build :user }
    end

    association :application, factory: :doorkeeper_application
    resource_owner_id { user.id }
    expires_in { 2.hours }
    scopes { 'read public' }
  end
end

リクエストをテスト

Request Spec を書く

spec/requests/api/v0/credential_spec.rb

require 'rails_helper'

RSpec.describe 'Credential API', type: :request do
  let(:user) { create :user }
  let(:oauth_app) { create :doorkeeper_application }
  let(:access_token) { create :doorkeeper_access_token, application: oauth_app, user: user, scopes: 'read' }

  describe 'GET /api/v1/credential' do
    context 'with authorized access' do
      let(:headers) {{ 'Authorization': "Bearer #{access_token.token}" }}
      before { get api_v1_credential_path(format: :json), headers: headers }

      it 'responds with 200' do
        expect(response).to have_http_status '200'
      end
    end
  end
end

$ bundle exec rspec spec/requests/api/v1/credential_spec.rb
1 example, 0 failures

以上です。