FIX: When using Ember CLI, plugin admin code was not being loaded in tests (#16239)

app/assets/javascripts/admin-plugins.js.erb

@@ -1,6 +1,4 @@
 <%
-require_asset("main_include_admin.js")
-
 DiscoursePluginRegistry.admin_javascripts.each { |js| require_asset(js) }
 
 DiscoursePluginRegistry.each_globbed_asset(admin: true) do |f|

app/assets/javascripts/admin.js

@@ -0,0 +1,2 @@
+//= require main_include_admin
+//= require admin-plugins

app/assets/javascripts/discourse/lib/bootstrap-json/index.js

@@ -301,7 +301,10 @@ module.exports = {
 
   contentFor: function (type, config) {
     if (shouldLoadPluginTestJs() && type === "test-plugin-js") {
-      return `<script src="${config.rootURL}assets/discourse/tests/active-plugins.js"></script>`;
+      return `
+        <script src="${config.rootURL}assets/discourse/tests/active-plugins.js"></script>
+        <script src="${config.rootURL}assets/admin-plugins.js"></script>
+      `;
     } else if (shouldLoadPluginTestJs() && type === "test-plugin-tests-js") {
       return `<script id="plugin-test-script" src="${config.rootURL}assets/discourse/tests/plugin-tests.js"></script>`;
     }

app/assets/javascripts/discourse/testem.js

@@ -59,6 +59,9 @@ if (shouldLoadPluginTestJs()) {
     "/assets/discourse/tests/active-plugins.js": {
       target,
     },
+    "/assets/admin-plugins.js": {
+      target,
+    },
     "/assets/discourse/tests/plugin-tests.js": {
       target,
     },

app/assets/javascripts/discourse/tests/index.html

@@ -50,8 +50,8 @@
     <script src="{{rootURL}}assets/test-support.js"></script>
     <script src="{{rootURL}}assets/discourse.js"></script>
     <script src="{{rootURL}}assets/discourse-markdown.js"></script>
-    {{content-for "test-plugin-js"}}
     <script src="{{rootURL}}assets/admin.js"></script>
+    {{content-for "test-plugin-js"}}
     <script src="{{rootURL}}assets/test-helpers.js"></script>
     <script src="{{rootURL}}assets/core-tests.js"></script>
     {{content-for "test-plugin-tests-js"}}

app/views/qunit/theme.html.erb

@@ -11,6 +11,7 @@
       <%= preload_script @app_bundle %>
       <%= preload_script "admin" %>
       <%= preload_script "discourse/tests/active-plugins" %>
+      <%= preload_script "admin-plugins" %>
       <%= support_bundles %>
       <%= theme_translations_lookup %>
       <%= theme_js_lookup %>

config/application.rb

@@ -177,6 +177,7 @@ module Discourse
       onpopstate-handler.js
       embed-application.js
       discourse/tests/active-plugins.js
+      admin-plugins.js
       discourse/tests/test_starter.js
     }