Add `data-testid` selector to user search form

app/views/groups/group_members/index.html.haml

@@ -55,7 +55,7 @@
         = render 'groups/group_members/tab_pane/header' do
           = render 'groups/group_members/tab_pane/title' do
             = html_escape(_("Members with access to %{strong_start}%{group_name}%{strong_end}")) % { group_name: @group.name, strong_start: '<strong>'.html_safe, strong_end: '</strong>'.html_safe }
-          = form_tag group_group_members_path(@group), method: :get, class: 'user-search-form gl-display-flex gl-md-align-items-center gl-flex-wrap gl-flex-direction-column gl-md-flex-direction-row gl-mx-n3 gl-my-n3' do
+          = form_tag group_group_members_path(@group), method: :get, class: 'user-search-form gl-display-flex gl-md-align-items-center gl-flex-wrap gl-flex-direction-column gl-md-flex-direction-row gl-mx-n3 gl-my-n3', data: { testid: 'user-search-form' } do
             .gl-px-3.gl-py-2
               .search-control-wrap.gl-relative
                 = render 'shared/members/search_field'
@@ -84,7 +84,7 @@
           = render 'groups/group_members/tab_pane/header' do
             = render 'groups/group_members/tab_pane/title' do
               = html_escape(_("Members with pending access to %{strong_start}%{group_name}%{strong_end}")) % { group_name: @group.name, strong_start: '<strong>'.html_safe, strong_end: '</strong>'.html_safe }
-            = form_tag group_group_members_path(@group), method: :get, class: 'user-search-form' do
+            = form_tag group_group_members_path(@group), method: :get, class: 'user-search-form', data: { testid: 'user-search-form' } do
               = render 'shared/members/search_field', name: 'search_invited'
           %ul.content-list.members-list
             = render partial: 'shared/members/member', collection: @invited_members, as: :member

spec/features/groups/members/search_members_spec.rb

@@ -19,7 +19,7 @@ RSpec.describe 'Search group member' do
   end
 
   it 'renders member users' do
-    page.within '.user-search-form' do
+    page.within '[data-testid="user-search-form"]' do
       fill_in 'search', with: member.name
       find('.user-search-btn').click
     end

spec/features/groups/members/tabs_spec.rb

@@ -62,7 +62,7 @@ RSpec.describe 'Groups > Members > Tabs' do
 
       click_link 'Pending'
 
-      page.within '.user-search-form' do
+      page.within '[data-testid="user-search-form"]' do
         fill_in 'search_invited', with: 'email'
         find('button[type="submit"]').click
       end
@@ -74,7 +74,7 @@ RSpec.describe 'Groups > Members > Tabs' do
       before do
         click_link 'Members'
 
-        page.within '.user-search-form' do
+        page.within '[data-testid="user-search-form"]' do
           fill_in 'search', with: 'test'
           find('button[type="submit"]').click
         end