Extract EE specific tests for protected branches/tags

We have the spec files containing EE specific code for
spec/features/protected_branches_spec.rb and
spec/features/protected_tags_spec.rb.
This commit deletes / extracts the CE part of it.

spec/features/protected_branches_spec.rb

 require 'spec_helper'
 
 describe 'Protected Branches', :js do
+  include ProtectedBranchHelpers
+
   let(:user) { create(:user) }
   let(:admin) { create(:admin) }
   let(:project) { create(:project, :repository) }
@@ -150,27 +152,11 @@ describe 'Protected Branches', :js do
     end
 
     describe "access control" do
-      include_examples "protected branches > access control > CE"
-    end
-  end
-
-  def set_protected_branch_name(branch_name)
-    find(".js-protected-branch-select").click
-    find(".dropdown-input-field").set(branch_name)
-    click_on("Create wildcard #{branch_name}")
-  end
-
-  def set_defaults
-    find(".js-allowed-to-merge").click
-    within('.qa-allowed-to-merge-dropdown') do
-      expect(first("li")).to have_content("Roles")
-      find(:link, 'No one').click
-    end
+      before do
+        stub_licensed_features(protected_refs_for_users: false)
+      end
 
-    find(".js-allowed-to-push").click
-    within('.qa-allowed-to-push-dropdown') do
-      expect(first("li")).to have_content("Roles")
-      find(:link, 'No one').click
+      include_examples "protected branches > access control > CE"
     end
   end
 end

spec/features/protected_tags_spec.rb

 require 'spec_helper'
 
 describe 'Protected Tags', :js do
+  include ProtectedTagHelpers
+
   let(:user) { create(:user, :admin) }
   let(:project) { create(:project, :repository) }
 
@@ -8,13 +10,6 @@ describe 'Protected Tags', :js do
     sign_in(user)
   end
 
-  def set_protected_tag_name(tag_name)
-    find(".js-protected-tag-select").click
-    find(".dropdown-input-field").set(tag_name)
-    click_on("Create wildcard #{tag_name}")
-    find('.protected-tags-dropdown .dropdown-menu', visible: false)
-  end
-
   describe "explicit protected tags" do
     it "allows creating explicit protected tags" do
       visit project_protected_tags_path(project)
@@ -92,6 +87,10 @@ describe 'Protected Tags', :js do
   end
 
   describe "access control" do
+    before do
+      stub_licensed_features(protected_refs_for_users: false)
+    end
+
     include_examples "protected tags > access control > CE"
   end
 end

spec/support/protected_branch_helpers.rb

+# frozen_string_literal: true
+
+module ProtectedBranchHelpers
+  def set_allowed_to(operation, option = 'Maintainers', form: '.js-new-protected-branch')
+    within form do
+      select_elem = find(".js-allowed-to-#{operation}")
+      select_elem.click
+
+      wait_for_requests
+
+      within('.dropdown-content') do
+        Array(option).each { |opt| click_on(opt) }
+      end
+
+      # Enhanced select is used in EE, therefore an extra click is needed.
+      select_elem.click if select_elem['aria-expanded'] == 'true'
+    end
+  end
+
+  def set_protected_branch_name(branch_name)
+    find('.js-protected-branch-select').click
+    find('.dropdown-input-field').set(branch_name)
+    click_on("Create wildcard #{branch_name}")
+  end
+
+  def set_defaults
+    set_allowed_to('merge')
+    set_allowed_to('push')
+  end
+end

spec/support/protected_tag_helpers.rb

+# frozen_string_literal: true
+
+require_relative 'protected_branch_helpers'
+
+module ProtectedTagHelpers
+  include ::ProtectedBranchHelpers
+
+  def set_allowed_to(operation, option = 'Maintainers', form: '.new-protected-tag')
+    super
+  end
+
+  def set_protected_tag_name(tag_name)
+    find('.js-protected-tag-select').click
+    find('.dropdown-input-field').set(tag_name)
+    click_on("Create wildcard #{tag_name}")
+    find('.protected-tags-dropdown .dropdown-menu', visible: false)
+  end
+end