FEATURE: Make staff action logs page support infinite loading

spec/requests/admin/staff_action_logs_controller_spec.rb

@@ -31,6 +31,26 @@ describe Admin::StaffActionLogsController do
       )
     end
 
+    it 'generates logs with pages' do
+      1.upto(4).each do |idx|
+        StaffActionLogger.new(Discourse.system_user).log_site_setting_change("title", "value #{idx - 1}", "value #{idx}")
+      end
+
+      get "/admin/logs/staff_action_logs.json", params: { limit: 3 }
+
+      json = JSON.parse(response.body)
+      expect(response.status).to eq(200)
+      expect(json["staff_action_logs"].length).to eq(3)
+      expect(json["staff_action_logs"][0]["new_value"]).to eq("value 4")
+
+      get "/admin/logs/staff_action_logs.json", params: { limit: 3, page: 1 }
+
+      json = JSON.parse(response.body)
+      expect(response.status).to eq(200)
+      expect(json["staff_action_logs"].length).to eq(1)
+      expect(json["staff_action_logs"][0]["new_value"]).to eq("value 1")
+    end
+
     context 'When staff actions are extended' do
       let(:plugin_extended_action) { :confirmed_ham }
       before { UserHistory.stubs(:staff_actions).returns([plugin_extended_action]) }