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path: root/spec/controllers/explore/projects_controller_spec.rb
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# frozen_string_literal: true

require 'spec_helper'

describe Explore::ProjectsController do
  shared_examples 'explore projects' do
    describe 'GET #index.json' do
      render_views

      before do
        get :index, format: :json
      end

      it { is_expected.to respond_with(:success) }
    end

    describe 'GET #trending.json' do
      render_views

      before do
        get :trending, format: :json
      end

      it { is_expected.to respond_with(:success) }
    end

    describe 'GET #starred.json' do
      render_views

      before do
        get :starred, format: :json
      end

      it { is_expected.to respond_with(:success) }
    end

    describe 'GET #trending' do
      context 'sorting by update date' do
        let(:project1) { create(:project, :public, updated_at: 3.days.ago) }
        let(:project2) { create(:project, :public, updated_at: 1.day.ago) }

        before do
          create(:trending_project, project: project1)
          create(:trending_project, project: project2)
        end

        it 'sorts by last updated' do
          get :trending, params: { sort: 'updated_desc' }

          expect(assigns(:projects)).to eq [project2, project1]
        end

        it 'sorts by oldest updated' do
          get :trending, params: { sort: 'updated_asc' }

          expect(assigns(:projects)).to eq [project1, project2]
        end
      end
    end
  end

  shared_examples "blocks high page numbers" do
    let(:page_limit) { 200 }

    context "page number is too high" do
      [:index, :trending, :starred].each do |endpoint|
        describe "GET #{endpoint}" do
          render_views

          before do
            get endpoint, params: { page: page_limit + 1 }
          end

          it { is_expected.to respond_with(:bad_request) }
          it { is_expected.to render_template("explore/projects/page_out_of_bounds") }

          it "assigns the page number" do
            expect(assigns[:max_page_number]).to eq(page_limit.to_s)
          end
        end

        describe "GET #{endpoint}.json" do
          render_views

          before do
            get endpoint, params: { page: page_limit + 1 }, format: :json
          end

          it { is_expected.to respond_with(:bad_request) }
        end

        describe "metrics recording" do
          after do
            get endpoint, params: { page: page_limit + 1 }
          end

          it "records the interception" do
            expect(Gitlab::Metrics).to receive(:counter).with(
              :gitlab_page_out_of_bounds,
              controller: "explore/projects",
              action: endpoint.to_s,
              bot: false
            )
          end
        end
      end
    end

    context "page number is acceptable" do
      [:index, :trending, :starred].each do |endpoint|
        describe "GET #{endpoint}" do
          render_views

          before do
            get endpoint, params: { page: page_limit }
          end

          it { is_expected.to respond_with(:success) }
          it { is_expected.to render_template("explore/projects/#{endpoint}") }
        end

        describe "GET #{endpoint}.json" do
          render_views

          before do
            get endpoint, params: { page: page_limit }, format: :json
          end

          it { is_expected.to respond_with(:success) }
        end
      end
    end
  end

  context 'when user is signed in' do
    let(:user) { create(:user) }

    before do
      sign_in(user)
    end

    include_examples 'explore projects'
    include_examples "blocks high page numbers"

    context 'user preference sorting' do
      let(:project) { create(:project) }

      it_behaves_like 'set sort order from user preference' do
        let(:sorting_param) { 'created_asc' }
      end
    end
  end

  context 'when user is not signed in' do
    include_examples 'explore projects'
    include_examples "blocks high page numbers"

    context 'user preference sorting' do
      let(:project) { create(:project) }
      let(:sorting_param) { 'created_asc' }

      it 'does not set sort order from user preference' do
        expect_any_instance_of(UserPreference).not_to receive(:update)

        get :index, params: { sort: sorting_param }
      end
    end
  end
end