Add tests to check if a new label is added

spec/features/issues/issue_sidebar_spec.rb

+require 'rails_helper'
+
+feature 'Issue Sidebar', feature: true do
+  let(:project) { create(:project) }
+  let(:issue) { create(:issue, project: project) }
+  let!(:user) { create(:user)}
+
+  before do
+    create(:label, project: project, title: 'bug')
+    login_as(user)
+  end
+
+  context 'as a allowed user' do
+    before do
+      project.team << [user, :developer]
+      visit_issue(project, issue)
+    end
+
+    describe 'when clicking on edit labels', js: true do
+      it 'dropdown has an option to create a new label' do
+        find('.block.labels .edit-link').click
+
+        page.within('.block.labels') do
+          expect(page).to have_content 'Create new'
+        end
+      end
+    end
+
+    context 'creating a new label', js: true do
+      it 'option to crate a new label is present' do
+        page.within('.block.labels') do
+          find('.edit-link').click
+
+          expect(page).to have_content 'Create new'
+        end
+      end
+
+      it 'dropdown switches to "create label" section' do
+        page.within('.block.labels') do
+          find('.edit-link').click
+          click_link 'Create new'
+
+          expect(page).to have_content 'Create new label'
+        end
+      end
+
+      it 'new label is added' do
+        page.within('.block.labels') do
+          find('.edit-link').click
+          sleep 1
+          click_link 'Create new'
+
+          fill_in 'new_label_name', with: 'wontfix'
+          page.find(".suggest-colors a", match: :first).click
+          click_button 'Create'
+
+          page.within('.dropdown-page-one') do
+            expect(page).to have_content 'wontfix'
+          end
+        end
+      end
+    end
+  end
+
+  context 'as a guest' do
+    before do
+      project.team << [user, :guest]
+      visit_issue(project, issue)
+    end
+
+    it 'does not have a option to edit labels' do
+      expect(page).not_to have_selector('.block.labels .edit-link')
+    end
+  end
+
+  def visit_issue(project, issue)
+    visit namespace_project_issue_path(project.namespace, project, issue)
+  end
+end