Add some boilerplate

Author: NullVoxPopuli

files/docs-app/app.gts

@@ -0,0 +1,21 @@
+import EmberApp from 'ember-strict-application-resolver';
+import EmberRouter from '@ember/routing/router';
+import PageTitleService from 'ember-page-title/services/page-title';
+
+class Router extends EmberRouter {
+  location = 'history';
+  rootURL = '/';
+}
+
+export const docsAppRegistry = {
+  './router': Router,
+  './services/page-title': PageTitleService,
+  // add any custom services here
+  // import.meta.glob('./services/*', { eager: true }),
+}
+
+export class App extends EmberApp {
+  modules = docsAppRegistry;
+}
+
+Router.map(function() { });

files/docs-app/templates/application.gts

@@ -0,0 +1,5 @@
+const greeting = 'hello';
+
+<template>
+  {{ greeting }}, world!
+</template>

files/tests/test-helper.__ext__

@@ -1,19 +1,21 @@
-import EmberApp from 'ember-strict-application-resolver';
 import EmberRouter from '@ember/routing/router';
 import * as QUnit from 'qunit';
 import { setApplication } from '@ember/test-helpers';
 import { setup } from 'qunit-dom';
 import { start as qunitStart, setupEmberOnerrorValidation } from 'ember-qunit';
 
+import { App, docsAppRegistry } from '#dosc-app/app';
+
 class Router extends EmberRouter {
   location = 'none';
   rootURL = '/';
 }
 
-class TestApp extends EmberApp {
+class TestApp extends App {
   modules = {
-    './router': { default: Router },
-    // add any custom services here
+    ...docsAppRegistry,
+    './router': Router,
+    // add any overrides here
     // import.meta.glob('./services/*', { eager: true }),
   };
 }