parser_service_spec.rb

# frozen_string_literal: true

require 'rails_helper'

RSpec.describe Google::ParserService, type: :service do
  describe '#call' do
    context 'when parsing a page having 1 top ad' do
      it 'counts exactly 1 top ad', vcr: 'google_search/top_ads_1' do
        result = Google::ClientService.new(keyword: 'squarespace').call

        expect(described_class.new(html_response: result).call[:ads_top_count]).to eq(1)
      end
    end

    context 'when parsing a page having 3 top ads, 3 bottom ads and 14 non ad links' do
      it 'counts exactly 3 top ads', vcr: 'google_search/top_ads_6' do
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:ads_top_count]).to eq(3)
      end

      it 'counts exactly 6 ads in total', vcr: 'google_search/top_ads_6' do
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:ads_page_count]).to eq(6)
      end

      it 'finds exactly the 3 top ads urls', vcr: 'google_search/top_ads_6' do
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:ads_top_url]).to contain_exactly('https://cloud.google.com/free', 'https://www.expressvpn.com/', 'https://www.top10vpn.com/best-vpn-for-vietnam/')
      end

      it 'counts exactly 14 non ad results', vcr: 'google_search/top_ads_6' do
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:non_ads_result_count]).to eq(14)
      end

      it 'gets 14 results', vcr: 'google_search/top_ads_6' do
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:non_ads_url].count).to eq(14)
      end

      it 'gets exactly 113 links', vcr: 'google_search/top_ads_6' do
        # Counted from cassette html raw code
        result = Google::ClientService.new(keyword: 'vpn').call

        expect(described_class.new(html_response: result).call[:total_link_count]).to eq(113)
      end
    end
  end
end