sentry/tests/js/spec/components/progressBar.spec.tsx

import {mountWithTheme} from 'sentry-test/enzyme';

import ProgressBar from 'app/components/progressBar';

describe('ProgressBar', function () {
  it('basic', function () {
    const progressBarValue = 50;
    const wrapper = mountWithTheme(<ProgressBar value={progressBarValue} />);

    // element exists
    expect(wrapper.length).toEqual(1);

    const elementProperties = wrapper.find('div').props();

    expect(elementProperties).toHaveProperty('role', 'progressbar');

    // check aria attributes
    expect(elementProperties).toHaveProperty('aria-valuenow', progressBarValue);
    expect(elementProperties).toHaveProperty('aria-valuemin', 0);
    expect(elementProperties).toHaveProperty('aria-valuemax', 100);
  });
});