discourse/test/javascripts/controllers/avatar-selector-test.js.es6

import { mapRoutes } from 'discourse/mapping-router';

moduleFor("controller:avatar-selector", "controller:avatar-selector", {
  beforeEach() {
    this.registry.register('router:main', mapRoutes());
  },
  needs: ['controller:modal']
});

QUnit.test("avatarTemplate", function(assert) {
  const avatarSelectorController = this.subject();

  avatarSelectorController.setProperties({
    selected: "system",
    system_avatar_upload_id:1,
    gravatar_avatar_upload_id:2,
    custom_avatar_upload_id: 3
  });

  assert.equal(avatarSelectorController.get("selectedUploadId"), 1, "we are using system by default");

  avatarSelectorController.set('selected', 'gravatar');
  assert.equal(avatarSelectorController.get("selectedUploadId"), 2, "we are using gravatar when set");

  avatarSelectorController.set("selected", "custom");
  assert.equal(avatarSelectorController.get("selectedUploadId"), 3, "we are using custom when set");
});