Update dependency ember-qunit to v5 (#90)

* Update dependency ember-qunit to v5
* adjust setup for ember-qunit v5 and upgrade qunit-dom
* yarn upgrade

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Jeldrik Hanschke <admin@jhanschke.de>

package.json

@@ -29,6 +29,7 @@
   },
   "devDependencies": {
     "@ember/optional-features": "^2.0.0",
+    "@ember/test-helpers": "^2.5.0",
     "@glimmer/component": "^1.0.1",
     "@glimmer/tracking": "^1.0.1",
     "babel-eslint": "^10.1.0",
@@ -43,7 +44,7 @@
     "ember-export-application-global": "^2.0.1",
     "ember-load-initializers": "^2.1.1",
     "ember-maybe-import-regenerator": "^0.1.6",
-    "ember-qunit": "^4.6.0",
+    "ember-qunit": "^5.0.0",
     "ember-resolver": "^8.0.2",
     "ember-source": "~3.22.0",
     "ember-source-channel-url": "^3.0.0",
@@ -57,7 +58,8 @@
     "loader.js": "^4.7.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.0.0",
-    "qunit-dom": "^1.4.0",
+    "qunit": "^2.17.2",
+    "qunit-dom": "^2.0.0",
     "release-it": "^14.0.0",
     "release-it-lerna-changelog": "^4.0.0"
   },

tests/index.html

@@ -21,6 +21,13 @@
     {{content-for "body"}}
     {{content-for "test-body"}}
 
+    <div id="qunit"></div>
+    <div id="qunit-fixture">
+      <div id="ember-testing-container">
+        <div id="ember-testing"></div>
+      </div>
+    </div>
+
     <script src="/testem.js" integrity=""></script>
     <script src="{{rootURL}}assets/vendor.js"></script>
     <script src="{{rootURL}}assets/test-support.js"></script>

tests/test-helper.js

@@ -1,8 +1,12 @@
 import Application from 'dummy/app';
 import config from 'dummy/config/environment';
+import * as QUnit from 'qunit';
 import { setApplication } from '@ember/test-helpers';
+import { setup } from 'qunit-dom';
 import { start } from 'ember-qunit';
 
 setApplication(Application.create(config.APP));
 
+setup(QUnit.assert);
+
 start();