Add backend tests for #new epic page

ee/spec/controllers/groups/epics_controller_spec.rb

@@ -27,6 +27,12 @@ RSpec.describe Groups::EpicsController do
       it_behaves_like '404 status'
     end
 
+    describe 'GET #new' do
+      subject { get :new, params: { group_id: group } }
+
+      it_behaves_like '404 status'
+    end
+
     describe 'GET #show' do
       subject { get :show, params: { group_id: group, id: epic.to_param } }
 
@@ -248,6 +254,23 @@ RSpec.describe Groups::EpicsController do
       end
     end
 
+    describe 'GET #new' do
+      it 'renders template' do
+        group.add_developer(user)
+        get :new, params: { group_id: group }
+
+        expect(response).to render_template 'groups/epics/new'
+      end
+
+      context 'with unauthorized user' do
+        it 'returns a not found 404 response' do
+          get :new, params: { group_id: group }
+
+          expect(response).to have_gitlab_http_status(:not_found)
+        end
+      end
+    end
+
     describe 'GET #show' do
       def show_epic(format = :html)
         get :show, params: { group_id: group, id: epic.to_param }, format: format

ee/spec/helpers/epics_helper_spec.rb

@@ -5,6 +5,23 @@ require 'spec_helper'
 RSpec.describe EpicsHelper, type: :helper do
   include ApplicationHelper
 
+  describe '#epic_new_app_data' do
+    let(:group) { create(:group) }
+
+    it 'returns the correct data for a new epic' do
+      expected_data = {
+        group_path: group.full_path,
+        group_epics_path: "/groups/#{group.full_path}/-/epics",
+        labels_fetch_path: "/groups/#{group.full_path}/-/labels.json?include_ancestor_groups=true&only_group_labels=true",
+        labels_manage_path: "/groups/#{group.full_path}/-/labels",
+        markdown_preview_path: "/groups/#{group.full_path}/preview_markdown",
+        markdown_docs_path: help_page_path('user/markdown')
+      }
+
+      expect(helper.epic_new_app_data(group)).to match(hash_including(expected_data))
+    end
+  end
+
   describe '#epic_endpoint_query_params' do
     let(:endpoint_data) do
       {