include GitTrend
RSpec.describe GitTrend::Scraper do
  let(:scraper) { Scraper.new }

  describe 'settings' do
    before do
      allow(ENV).to receive(:[]).with('http_proxy').and_return("http://#{proxy_user}:#{proxy_pass}@#{proxy_addr}:#{proxy_port}")
    end
    let(:proxy_addr) { '192.168.1.99' }
    let(:proxy_port) { 9999 }
    let(:proxy_user) { 'proxy_user' }
    let(:proxy_pass) { 'proxy_pass' }
    subject { scraper.instance_variable_get(:@agent) }
    it 'should use proxy settings of ENV' do
      aggregate_failures do
        expect(subject.proxy_addr).to eq proxy_addr
        expect(subject.proxy_user).to eq proxy_user
        expect(subject.proxy_pass).to eq proxy_pass
        expect(subject.proxy_port).to eq proxy_port
        expect(subject.user_agent).to eq "git-trend #{VERSION}"
      end
    end
  end

  describe '#get' do
    context 'when a network error occurred' do
      before do
        stub_request(:get, Scraper::BASE_URL)
          .to_return(status: 500, body: '[]')
      end
      it { expect { scraper.get }.to raise_error(Exception) }
    end

    context 'when a scraping error occurred' do
      before do
        stub_request(:get, Scraper::BASE_URL)
          .to_return(status: 200, headers: { content_type: 'text/html' }, body: '')
      end
      it { expect { scraper.get }.to raise_error(ScrapeException) }
    end
  end
end