Show reviewers in MR list

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/237922

app/views/projects/merge_requests/_merge_request.html.haml

@@ -55,6 +55,9 @@
         - if merge_request.assignees.any?
           %li.d-flex
             = render 'shared/issuable/assignees', project: merge_request.project, issuable: merge_request
+        - if Feature.enabled?(:merge_request_reviewers, @project) && merge_request.reviewers.any?
+          %li.gl-display-flex.issuable-reviewers
+            = render 'shared/issuable/reviewers', project: merge_request.project, issuable: merge_request
         = render 'projects/merge_requests/approvals_count', merge_request: merge_request
 
         = render 'shared/issuable_meta_data', issuable: merge_request

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

+- max_render = 4
+- reviewers_rendering_overflow = issuable.reviewers.size > max_render
+- render_count = reviewers_rendering_overflow ? max_render - 1 : max_render
+- more_reviewers_count = issuable.reviewers.size - render_count
+
+- issuable.reviewers.take(render_count).each do |reviewer| # rubocop: disable CodeReuse/ActiveRecord
+  = link_to_member(@project, reviewer, name: false, title: _("Review requested from %{name}") % { name: reviewer.name})
+
+- if more_reviewers_count > 0
+  %span{ class: 'avatar-counter has-tooltip', data: { container: 'body', placement: 'bottom', 'line-type' => 'old' }, title: _("+%{more_reviewers_count} more reviewers") % { more_reviewers_count: more_reviewers_count} }
+    = _("+%{more_reviewers_count}") % { more_reviewers_count: more_reviewers_count}

locale/gitlab.pot

@@ -997,6 +997,12 @@ msgstr[1] ""
 msgid "+%{approvers} more approvers"
 msgstr ""
 
+msgid "+%{more_reviewers_count}"
+msgstr ""
+
+msgid "+%{more_reviewers_count} more reviewers"
+msgstr ""
+
 msgid "+%{tags} more"
 msgstr ""
 
@@ -22196,6 +22202,9 @@ msgstr ""
 msgid "Review App|View latest app"
 msgstr ""
 
+msgid "Review requested from %{name}"
+msgstr ""
+
 msgid "Review the process for configuring service providers in your identity provider — in this case, GitLab is the \"service provider\" or \"relying party\"."
 msgstr ""
 

spec/features/merge_requests/user_lists_merge_requests_spec.rb

@@ -8,6 +8,10 @@ RSpec.describe 'Merge requests > User lists merge requests' do
 
   let(:project) { create(:project, :public, :repository) }
   let(:user) { create(:user) }
+  let(:user2) { create(:user) }
+  let(:user3) { create(:user) }
+  let(:user4) { create(:user) }
+  let(:user5) { create(:user) }
 
   before do
     @fix = create(:merge_request,
@@ -15,6 +19,7 @@ RSpec.describe 'Merge requests > User lists merge requests' do
                   source_project: project,
                   source_branch: 'fix',
                   assignees: [user],
+                  reviewers: [user, user2, user3, user4, user5],
                   milestone: create(:milestone, project: project, due_date: '2013-12-11'),
                   created_at: 1.minute.ago,
                   updated_at: 1.minute.ago)
@@ -23,6 +28,7 @@ RSpec.describe 'Merge requests > User lists merge requests' do
            source_project: project,
            source_branch: 'markdown',
            assignees: [user],
+           reviewers: [user, user2, user3, user4],
            milestone: create(:milestone, project: project, due_date: '2013-12-12'),
            created_at: 2.minutes.ago,
            updated_at: 2.minutes.ago)
@@ -34,6 +40,37 @@ RSpec.describe 'Merge requests > User lists merge requests' do
            updated_at: 10.seconds.ago)
   end
 
+  context 'when merge_request_reviewers is turned on' do
+    before do
+      stub_feature_flags(merge_request_reviewers: true)
+      visit_merge_requests(project, reviewer_id: user.id)
+    end
+
+    it 'has reviewers in MR list' do
+      expect(page).to have_css('.issuable-reviewers')
+    end
+
+    it 'shows reviewers avatar count badge if more_reviewers_count > 4' do
+      first_issuable_reviewers = first('.issuable-reviewers')
+
+      expect(first_issuable_reviewers).to have_content('2')
+      expect(first_issuable_reviewers).to have_css('.avatar-counter')
+    end
+
+    it 'does not show reviewers avatar count badge if more_reviewers_count <= 4' do
+      expect(page.all('.issuable-reviewers')[1]).not_to have_css('.avatar-counter')
+    end
+  end
+
+  context 'when merge_request_reviewers is turned false' do
+    it 'has no reviewers in MR list' do
+      stub_feature_flags(merge_request_reviewers: false)
+      visit_merge_requests(project, reviewer_id: user.id)
+
+      expect(page).not_to have_css('.issuable-reviewers')
+    end
+  end
+
   it 'filters on no assignee' do
     visit_merge_requests(project, assignee_id: IssuableFinder::Params::FILTER_NONE)