Restful refactor of accounts/ routes (#2133)

* Add routing specs for accounts followers and following actions

* Use more restful route naming for public account follow pages

Moves two actions:
- accounts#followers to accounts/follower_accounts#index
- accounts#following to accounts/following_accounts#index

Adds routing spec to ensure prior URLs are preserved.

spec/controllers/account_follow_controller_spec.rb

@@ -0,0 +1,24 @@
+require 'rails_helper'
+
+describe AccountFollowController do
+  render_views
+  let(:user) { Fabricate(:user) }
+  let(:alice) { Fabricate(:account, username: 'alice') }
+
+  describe 'POST #create' do
+    before do
+      sign_in(user)
+    end
+
+    it 'redirects to account path' do
+      service = double
+      allow(FollowService).to receive(:new).and_return(service)
+      allow(service).to receive(:call)
+
+      post :create, params: { account_username: alice.username }
+
+      expect(service).to have_received(:call).with(user.account, 'alice')
+      expect(response).to redirect_to(account_path(alice))
+    end
+  end
+end

spec/controllers/account_unfollow_controller_spec.rb

@@ -0,0 +1,24 @@
+require 'rails_helper'
+
+describe AccountUnfollowController do
+  render_views
+  let(:user) { Fabricate(:user) }
+  let(:alice) { Fabricate(:account, username: 'alice') }
+
+  describe 'POST #create' do
+    before do
+      sign_in(user)
+    end
+
+    it 'redirects to account path' do
+      service = double
+      allow(UnfollowService).to receive(:new).and_return(service)
+      allow(service).to receive(:call)
+
+      post :create, params: { account_username: alice.username }
+
+      expect(service).to have_received(:call).with(user.account, alice)
+      expect(response).to redirect_to(account_path(alice))
+    end
+  end
+end

spec/controllers/accounts_controller_spec.rb

@@ -44,18 +44,4 @@ RSpec.describe AccountsController, type: :controller do
       end
     end
   end
-
-  describe 'GET #followers' do
-    it 'returns http success' do
-      get :followers, params: { username: alice.username }
-      expect(response).to have_http_status(:success)
-    end
-  end
-
-  describe 'GET #following' do
-    it 'returns http success' do
-      get :following, params: { username: alice.username }
-      expect(response).to have_http_status(:success)
-    end
-  end
 end

spec/controllers/follower_accounts_controller_spec.rb

@@ -0,0 +1,14 @@
+require 'rails_helper'
+
+describe FollowerAccountsController do
+  render_views
+  let(:alice) { Fabricate(:account, username: 'alice') }
+
+  describe 'GET #index' do
+    it 'returns http success' do
+      get :index, params: { account_username: alice.username }
+
+      expect(response).to have_http_status(:success)
+    end
+  end
+end

spec/controllers/following_accounts_controller_spec.rb

@@ -0,0 +1,14 @@
+require 'rails_helper'
+
+describe FollowingAccountsController do
+  render_views
+  let(:alice) { Fabricate(:account, username: 'alice') }
+
+  describe 'GET #index' do
+    it 'returns http success' do
+      get :index, params: { account_username: alice.username }
+
+      expect(response).to have_http_status(:success)
+    end
+  end
+end

spec/requests/link_headers_spec.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe 'Link headers' do
+  describe 'on the account show page' do
+    let(:account) { Fabricate(:account, username: 'test') }
+
+    before do
+      get short_account_path(username: account)
+    end
+
+    it 'contains webfinger url in link header' do
+      link_header = link_header_with_type('application/xrd+xml')
+
+      expect(link_header.href).to match 'http://www.example.com/.well-known/webfinger?resource=acct%3Atest%40cb6e6126.ngrok.io'
+      expect(link_header.attr_pairs.first).to eq %w[rel lrdd]
+    end
+
+    it 'contains atom url in link header' do
+      link_header = link_header_with_type('application/atom+xml')
+
+      expect(link_header.href).to eq 'http://www.example.com/users/test.atom'
+      expect(link_header.attr_pairs.first).to eq %w[rel alternate]
+    end
+
+    def link_header_with_type(type)
+      response.headers['Link'].links.find do |link|
+        link.attr_pairs.any? { |pair| pair == ['type', type] }
+      end
+    end
+  end
+end

spec/routing/accounts_routing_spec.rb

@@ -0,0 +1,31 @@
+require 'rails_helper'
+
+describe 'Routes under accounts/' do
+  describe 'the route for accounts who are followers of an account' do
+    it 'routes to the followers action with the right username' do
+      expect(get('/users/name/followers')).
+        to route_to('follower_accounts#index', account_username: 'name')
+    end
+  end
+
+  describe 'the route for accounts who are followed by an account' do
+    it 'routes to the following action with the right username' do
+      expect(get('/users/name/following')).
+        to route_to('following_accounts#index', account_username: 'name')
+    end
+  end
+
+  describe 'the route for following an account' do
+    it 'routes to the follow create action with the right username' do
+      expect(post('/users/name/follow')).
+        to route_to('account_follow#create', account_username: 'name')
+    end
+  end
+
+  describe 'the route for unfollowing an account' do
+    it 'routes to the unfollow create action with the right username' do
+      expect(post('/users/name/unfollow')).
+        to route_to('account_unfollow#create', account_username: 'name')
+    end
+  end
+end