Bad timing routing issue, failing test

Author: wagenet

packages/ember/tests/routing/substates_test.js

@@ -219,6 +219,38 @@ moduleFor('Loading/Error Substates', class extends ApplicationTestCase {
     return promise;
   }
 
+  ['@test Bad timing issue ☠️'](assert) {
+    let appDeferred = RSVP.defer();
+
+    this.router.map(function() {
+      this.route('dummy');
+    });
+
+    this.addTemplate('application_loading', `
+      <div id="toplevel-loading">TOPLEVEL LOADING</div>
+    `);
+    this.add('route:application', Route.extend({
+      model() {
+        return appDeferred.promise;
+      }
+    }));
+
+    this.add('route:dummy', Route.extend({
+      redirect() {
+        return RSVP.resolve()
+          .then(() => this.replaceWith('index'));
+      }
+    }));
+
+    let promise = this.visit('/dummy').then(() => {
+      assert.ok(true);
+    });
+
+    appDeferred.resolve();
+
+    return promise;
+  }
+
   ['@test Prioritized substate entry works with preserved-namespace nested routes'](assert) {
     let deferred = RSVP.defer();