Implement Instance Moderation Notes (#31529)

spec/requests/admin/instances_spec.rb

@@ -4,9 +4,9 @@ require 'rails_helper'
 
 RSpec.describe 'Admin Instances' do
   describe 'GET /admin/instances/:id' do
-    context 'with an unknown domain' do
-      before { sign_in Fabricate(:admin_user) }
+    before { sign_in Fabricate(:admin_user) }
 
+    context 'with an unknown domain' do
       it 'returns http success' do
         get admin_instance_path(id: 'unknown.example')
 
@@ -14,5 +14,14 @@ RSpec.describe 'Admin Instances' do
           .to have_http_status(200)
       end
     end
+
+    context 'with an invalid domain' do
+      it 'returns http success' do
+        get admin_instance_path(id: ' ')
+
+        expect(response)
+          .to have_http_status(200)
+      end
+    end
   end
 end