gitlab-org--gitlab-foss/spec/features/merge_requests/widget_spec.rb

require 'rails_helper'

describe 'Merge request', :feature, :js do
  include WaitForAjax

  let(:project) { create(:project) }
  let(:user) { create(:user) }
  let(:merge_request) { create(:merge_request, source_project: project) }

  before do
    project.team << [user, :master]
    login_as(user)
  end

  context 'new merge request' do
    before do
      visit new_namespace_project_merge_request_path(
        project.namespace,
        project,
        merge_request: {
          source_project_id: project.id,
          target_project_id: project.id,
          source_branch: 'feature',
          target_branch: 'master'
        }
      )
    end

    it 'shows widget status after creating new merge request' do
      click_button 'Submit merge request'

      wait_for_ajax

      expect(page).to have_selector('.accept_merge_request')
    end
  end

  context 'view merge request' do
    let!(:environment) { create(:environment, project: project) }
    let!(:deployment) { create(:deployment, environment: environment, ref: 'feature', sha: merge_request.diff_head_sha) }

    before do
      visit namespace_project_merge_request_path(project.namespace, project, merge_request)
    end

    it 'shows environments link' do
      wait_for_ajax

      page.within('.mr-widget-heading') do
        expect(page).to have_content("Deployed to #{environment.name}")
        expect(find('.js-environment-link')[:href]).to include(environment.formatted_external_url)
      end
    end
  end

  context 'merge error' do
    before do
      allow_any_instance_of(Repository).to receive(:merge).and_return(false)
      visit namespace_project_merge_request_path(project.namespace, project, merge_request)
      click_button 'Accept Merge Request'
      wait_for_ajax
    end

    it 'updates the MR widget' do
      page.within('.mr-widget-body') do
        expect(page).to have_content('Conflicts detected during merge')
      end
    end
  end
end