add tests for pipeline quotas page

spec/features/groups/pipeline_quota.rb

+require 'spec_helper'
+
+feature 'Groups > Pipeline Quota', feature: true do
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let!(:project) { create(:project, namespace: group, shared_runners_enabled: true) }
+
+  before do
+    group.add_owner(user)
+    login_with(user)
+  end
+
+  context 'with no quota' do
+    let(:group) { create(:group, :with_build_minutes) }
+
+    it 'shows correct ratio and status' do
+      visit_pipeline_quota_page
+
+      page.within('.pipeline-quota') do
+        expect(page).to have_content("400 / Unlimited minutes")
+        expect(page).to have_selector('.progress-bar-success')
+      end
+    end
+  end
+
+  context 'with no projects using shared runners' do
+    let(:group) { create(:group, :with_not_used_build_minutes_limit) }
+    let!(:project) { create(:project, namespace: group, shared_runners_enabled: false) }
+
+    it 'shows correct ratio and status' do
+      visit_pipeline_quota_page
+
+      page.within('.pipeline-quota') do
+        expect(page).to have_content("300 / Unlimited minutes")
+        expect(page).to have_selector('.progress-bar-success')
+      end
+    end
+  end
+
+  context 'minutes under quota' do
+    let(:group) { create(:group, :with_not_used_build_minutes_limit) }
+
+    it 'shows correct ratio and status' do
+      visit_pipeline_quota_page
+
+      page.within('.pipeline-quota') do
+        expect(page).to have_content("300 / 500 minutes")
+        expect(page).to have_content("60% used")
+        expect(page).to have_selector('.progress-bar-success')
+      end
+    end
+  end
+
+  context 'minutes over quota' do
+    let(:group) { create(:group, :with_used_build_minutes_limit) }
+
+    it 'shows correct ratio and status' do
+      visit_pipeline_quota_page
+
+      page.within('.pipeline-quota') do
+        expect(page).to have_content("1000 / 500 minutes")
+        expect(page).to have_content("200% used")
+        expect(page).to have_selector('.progress-bar-danger')
+      end
+    end
+  end
+
+  def visit_pipeline_quota_page
+    visit group_pipeline_quota_path(group)
+  end
+end