Retry: Rename all test files from JS -> ES6

test/javascripts/controllers/preferences-second-factor-test.js

@@ -0,0 +1,13 @@
+moduleFor("controller:preferences/second-factor");
+
+QUnit.test("displayOAuthWarning when OAuth login methods are enabled", function(
+  assert
+) {
+  const controller = this.subject({
+    siteSettings: {
+      enable_google_oauth2_logins: true
+    }
+  });
+
+  assert.equal(controller.get("displayOAuthWarning"), true);
+});