[Rails5] Fix spec/services/applications/create_service_spec.rb

spec/services/applications/create_service_spec.rb

-require 'spec_helper'
+require "spec_helper"
 
 describe ::Applications::CreateService do
   let(:user) { create(:user) }
   let(:params) { attributes_for(:application) }
-  let(:request) { ActionController::TestRequest.new(remote_ip: '127.0.0.1') }
+  let(:request) do
+    if Gitlab.rails5?
+      ActionController::TestRequest.new({ remote_ip: "127.0.0.1" }, ActionController::TestSession.new)
+    else
+      ActionController::TestRequest.new(remote_ip: "127.0.0.1")
+    end
+  end
 
   subject { described_class.new(user, params) }
 
-  it 'creates an application' do
-    expect { subject.execute(request) }.to change { Doorkeeper::Application.count }.by(1)
-  end
+  it { expect { subject.execute(request) }.to change { Doorkeeper::Application.count }.by(1) }
 end