More controller specs (#2561)

* Add render_views in more places

* Delegate methods from account to user with allow nil true, so that admin accounts show view renders when missing a user

* Use actual account instances in authorize follow controller spec

spec/controllers/authorize_follows_controller_spec.rb

@@ -3,6 +3,8 @@
 require 'rails_helper'
 
 describe AuthorizeFollowsController do
+  render_views
+
   describe 'GET #show' do
     describe 'when signed out' do
       it 'redirects to sign in page' do
@@ -38,7 +40,7 @@ describe AuthorizeFollowsController do
       end
 
       it 'sets account from url' do
-        account = double
+        account = Account.new
         service = double
         allow(FetchRemoteAccountService).to receive(:new).and_return(service)
         allow(service).to receive(:call).with('http://example.com').and_return(account)
@@ -50,7 +52,7 @@ describe AuthorizeFollowsController do
       end
 
       it 'sets account from acct uri' do
-        account = double
+        account = Account.new
         service = double
         allow(FollowRemoteAccountService).to receive(:new).and_return(service)
         allow(service).to receive(:call).with('found@hostname').and_return(account)