discourse/test/javascripts/admin/models/theme-test.js.es6

import Theme from 'admin/models/theme';

QUnit.module("model:theme");

QUnit.test('can add an upload correctly', function(assert) {
  let theme = Theme.create();

  assert.equal(theme.get("uploads.length"), 0, "uploads should be an empty array");

  theme.setField('common', 'bob', '', 999, 2);
  let fields = theme.get("theme_fields");
  assert.equal(fields.length, 1, 'expecting 1 theme field');
  assert.equal(fields[0].upload_id, 999, 'expecting upload id to be set');
  assert.equal(fields[0].type_id, 2, 'expecting type id to be set');

  assert.equal(theme.get("uploads.length"), 1, "expecting an upload");
});