# frozen_string_literal: true

require 'spec_helper'

describe AnalyticsSummarySerializer do
  subject do
    described_class.new.represent(resource)
  end

  let(:project) { create(:project) }
  let(:user) { create(:user) }

  let(:resource) do
    Gitlab::CycleAnalytics::Summary::Issue
      .new(project: double, from: 1.day.ago, current_user: user)
  end

  before do
    allow_next_instance_of(Gitlab::CycleAnalytics::Summary::Issue) do |instance|
      allow(instance).to receive(:value).and_return(1.12)
    end
  end

  it 'generates payload for single object' do
    expect(subject).to be_kind_of Hash
  end

  it 'contains important elements of AnalyticsStage' do
    expect(subject).to include(:title, :value)
  end

  it 'does not include unit' do
    expect(subject).not_to include(:unit)
  end

  context 'when representing with unit' do
    let(:resource) do
      Gitlab::CycleAnalytics::Summary::DeploymentFrequency
        .new(deployments: 10, from: 1.day.ago)
    end

    subject { described_class.new.represent(resource, with_unit: true) }

    it 'contains unit' do
      expect(subject).to include(:unit)
    end
  end
end
