Use embroider/macros

Author: NullVoxPopuli

files/tests/test-helper.__ext__

@@ -4,6 +4,7 @@ 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 { getGlobalConfig } from '@embroider/macros/src/addon/runtime';
 
 class Router extends EmberRouter {
   location = 'none';
@@ -21,6 +22,8 @@ class TestApp extends EmberApp {
 Router.map(function () {});
 
 export function start() {
+  const config = getGlobalConfig()['@embroider/macros'];
+  if (config) config.isTesting = true;
   setApplication(
     TestApp.create({
       autoboot: false,