Add invite members link on issues

- to entice more user expansion into
  collaboration

app/views/shared/issuable/_sidebar_assignees.html.haml

@@ -40,4 +40,13 @@
   - data['max-select'] = dropdown_options[:data][:'max-select'] if dropdown_options[:data][:'max-select']
   - options[:data].merge!(data)
 
+  - if experiment_enabled?(:invite_members_version_a) && can_import_members?
+    - options[:dropdown_class] += ' dropdown-extended-height'
+    - options[:footer_content] = true
+
+    = dropdown_tag(title, options: options) do
+      %ul.dropdown-footer-list
+        %li
+          = link_to _('Invite Members'), project_project_members_path(@project), title: _('Invite Members'), :"data-is-link" => true
+  - else
     = dropdown_tag(title, options: options)

ee/spec/views/projects/merge_requests/show.html.haml_spec.rb

@@ -3,6 +3,10 @@
 require 'spec_helper'
 
 RSpec.describe 'projects/merge_requests/show.html.haml' do
+  before do
+    allow(view).to receive(:experiment_enabled?).and_return(false)
+  end
+
   include_context 'merge request show action'
 
   context 'when merge request is created by a GitLab team member' do

lib/gitlab/experimentation.rb

@@ -47,6 +47,9 @@ module Gitlab
       },
       upgrade_link_in_user_menu_a: {
         tracking_category: 'Growth::Expansion::Experiment::UpgradeLinkInUserMenuA'
+      },
+      invite_members_version_a: {
+        tracking_category: 'Growth::Expansion::Experiment::InviteMembersVersionA'
       }
     }.freeze
 

locale/gitlab.pot

@@ -12100,6 +12100,9 @@ msgstr ""
 msgid "Invite \"%{trimmed}\" by email"
 msgstr ""
 
+msgid "Invite Members"
+msgstr ""
+
 msgid "Invite group"
 msgstr ""
 

spec/features/issues/issue_sidebar_spec.rb

@@ -7,12 +7,13 @@ describe 'Issue Sidebar' do
 
   let(:group) { create(:group, :nested) }
   let(:project) { create(:project, :public, namespace: group) }
-  let!(:user) { create(:user)}
+  let!(:user) { create(:user) }
   let!(:label) { create(:label, project: project, title: 'bug') }
   let(:issue) { create(:labeled_issue, project: project, labels: [label]) }
   let!(:xss_label) { create(:label, project: project, title: '<script>alert("xss");</script>') }
 
   before do
+    stub_feature_flags(save_issuable_health_status: false)
     sign_in(user)
   end
 
@@ -20,6 +21,48 @@ describe 'Issue Sidebar' do
     let(:user2) { create(:user) }
     let(:issue2) { create(:issue, project: project, author: user2) }
 
+    context 'when invite_members_version_a experiment is enabled' do
+      before do
+        stub_experiment_for_user(invite_members_version_a: true)
+      end
+
+      context 'when user can not see invite members' do
+        before do
+          project.add_developer(user)
+          visit_issue(project, issue2)
+
+          find('.block.assignee .edit-link').click
+
+          wait_for_requests
+        end
+
+        it 'does not see link to invite members' do
+          page.within '.dropdown-menu-user' do
+            expect(page).not_to have_link('Invite Members')
+          end
+        end
+      end
+
+      context 'when user can see invite members' do
+        before do
+          project.add_maintainer(user)
+          visit_issue(project, issue2)
+
+          find('.block.assignee .edit-link').click
+
+          wait_for_requests
+        end
+
+        it 'sees link to invite members' do
+          page.within '.dropdown-menu-user' do
+            expect(page).to have_link('Invite Members', href: project_project_members_path(project))
+          end
+        end
+      end
+    end
+
+    context 'when invite_members_version_a experiment is not enabled' do
+      context 'when user is a developer' do
         before do
           project.add_developer(user)
           visit_issue(project, issue2)
@@ -79,6 +122,25 @@ describe 'Issue Sidebar' do
         end
       end
 
+      context 'when user is a maintainer' do
+        before do
+          project.add_maintainer(user)
+          visit_issue(project, issue2)
+
+          find('.block.assignee .edit-link').click
+
+          wait_for_requests
+        end
+
+        it 'shows author in assignee dropdown and no invite link' do
+          page.within '.dropdown-menu-user' do
+            expect(page).not_to have_link('Invite Members')
+          end
+        end
+      end
+    end
+  end
+
   context 'as a allowed user' do
     before do
       project.add_developer(user)

spec/features/merge_request/user_edits_assignees_sidebar_spec.rb

@@ -20,6 +20,7 @@ describe 'Merge request > User edits assignees sidebar', :js do
   let(:sidebar_assignee_dropdown_item) { sidebar_assignee_block.find(".dropdown-menu li[data-user-id=\"#{assignee.id}\"]") }
   let(:sidebar_assignee_dropdown_tooltip) { sidebar_assignee_dropdown_item.find('a')['data-title'] || '' }
 
+  context 'when invite_members_version_a experiment is not enabled' do
     before do
       stub_const('Autocomplete::UsersFinder::LIMIT', users_find_limit)
 
@@ -51,6 +52,12 @@ describe 'Merge request > User edits assignees sidebar', :js do
         it "shows assignee tooltip '#{expected_tooltip}" do
           expect(sidebar_assignee_dropdown_tooltip).to eql(expected_tooltip)
         end
+
+        it 'does not show invite link' do
+          page.within '.dropdown-menu-user' do
+            expect(page).not_to have_link('Invite Members')
+          end
+        end
       end
     end
 
@@ -65,4 +72,48 @@ describe 'Merge request > User edits assignees sidebar', :js do
 
       it_behaves_like 'when assigned', expected_tooltip: 'Cannot merge'
     end
+  end
+
+  context 'when invite_members_version_a experiment is enabled' do
+    let_it_be(:user) { create(:user) }
+
+    before do
+      stub_experiment_for_user(invite_members_version_a: true)
+      sign_in(user)
+    end
+
+    context 'when user can not see invite members' do
+      before do
+        project.add_developer(user)
+        visit project_merge_request_path(project, merge_request)
+
+        find('.block.assignee .edit-link').click
+
+        wait_for_requests
+      end
+
+      it 'does not see link to invite members' do
+        page.within '.dropdown-menu-user' do
+          expect(page).not_to have_link('Invite Members')
+        end
+      end
+    end
+
+    context 'when user can see invite members' do
+      before do
+        project.add_maintainer(user)
+        visit project_merge_request_path(project, merge_request)
+
+        find('.block.assignee .edit-link').click
+
+        wait_for_requests
+      end
+
+      it 'sees link to invite members' do
+        page.within '.dropdown-menu-user' do
+          expect(page).to have_link('Invite Members', href: project_project_members_path(project))
+        end
+      end
+    end
+  end
 end

spec/views/projects/merge_requests/show.html.haml_spec.rb

@@ -3,6 +3,10 @@
 require 'spec_helper'
 
 describe 'projects/merge_requests/show.html.haml' do
+  before do
+    allow(view).to receive(:experiment_enabled?).and_return(false)
+  end
+
   include_context 'merge request show action'
 
   describe 'merge request assignee sidebar' do