Rename all test files from JS -> ES6

test/javascripts/acceptance/plugin-outlet-single-template-test.js

@@ -0,0 +1,28 @@
+import { acceptance } from "helpers/qunit-helpers";
+
+const CONNECTOR =
+  "javascripts/single-test/connectors/user-profile-primary/hello";
+acceptance("Plugin Outlet - Single Template", {
+  beforeEach() {
+    Ember.TEMPLATES[CONNECTOR] = Ember.HTMLBars.compile(
+      `<span class='hello-username'>{{model.username}}</span>`
+    );
+  },
+
+  afterEach() {
+    delete Ember.TEMPLATES[CONNECTOR];
+  }
+});
+
+QUnit.test("Renders a template into the outlet", async assert => {
+  await visit("/u/eviltrout");
+  assert.ok(
+    find(".user-profile-primary-outlet.hello").length === 1,
+    "it has class names"
+  );
+  assert.equal(
+    find(".hello-username").text(),
+    "eviltrout",
+    "it renders into the outlet"
+  );
+});