Auto merge of #4296 - Turbo87:dev-mode, r=Turbo87

Add "Development Mode" application test

This can be used during development of pages that are only available if authenticated.

Author: bors

tests/acceptance/dev-mode-test.js

@@ -0,0 +1,37 @@
+import { module, test } from 'qunit';
+
+import { setupApplicationTest } from 'cargo/tests/helpers';
+
+import { visit } from '../helpers/visit-ignoring-abort';
+
+let s = new URLSearchParams(window.location.search);
+if (s.has('devmode')) {
+  /**
+   * This module will only be available if the "Development Mode" option of QUnit is chosen
+   * @link http://localhost:4200/tests/?notrycatch&devmode&filter=Development%20Mode
+   */
+  module('Development Mode', function (hooks) {
+    setupApplicationTest(hooks);
+
+    test('authenticated', async function () {
+      let user = this.server.create('user');
+      this.authenticateAs(user);
+
+      let crate = this.server.create('crate', { name: 'foo' });
+      this.server.create('version', { crate, num: '0.1.0' });
+      this.server.create('crate-ownership', { crate, user });
+
+      crate = this.server.create('crate', { name: 'bar' });
+      this.server.create('version', { crate, num: '1.0.0' });
+
+      let router = this.owner.lookup('service:router');
+      router.on('routeDidChange', () => {
+        console.log(`URL: ${router.currentURL}`);
+      });
+
+      await visit('/');
+      // eslint-disable-next-line ember/no-pause-test
+      await this.pauseTest();
+    });
+  });
+}