issue_entity_spec.rb

require 'spec_helper'

describe IssueEntity do
  let(:project)  { create(:project) }
  let(:resource) { create(:issue, project: project) }
  let(:user)     { create(:user) }

  let(:request) { double('request', current_user: user) }

  subject { described_class.new(resource, request: request).as_json }

  it 'has Issuable attributes' do
    expect(subject).to include(:id, :iid, :author_id, :description, :lock_version, :milestone_id,
                               :title, :updated_by_id, :created_at, :updated_at, :milestone, :labels)
  end

  it 'has time estimation attributes' do
    expect(subject).to include(:time_estimate, :total_time_spent, :human_time_estimate, :human_total_time_spent)
  end
end