Enzyme's render
function is used to render react components to static HTML and analyze the
resulting HTML structure.
render
returns a wrapper very similar to the other renderers in enzyme, mount
and
shallow
; however, render
uses a third party HTML parsing and traversal library
Cheerio. We believe that Cheerio handles parsing and
traversing HTML extremely well, and duplicating this functionality ourselves would be a
disservice.
For the purposes of this documentation, we will refer to Cheerio's constructor as
CheerioWrapper
, which is to say that it is analogous to our ReactWrapper
and ShallowWrapper
constructors.
import { render } from 'enzyme';
describe('<Foo />', () => {
it('renders three `.foo-bar`s', () => {
const wrapper = render(<Foo />);
expect(wrapper.find('.foo-bar')).to.have.length(3);
});
it('rendered the title', () => {
const wrapper = render(<Foo title="unique" />);
expect(wrapper.text()).to.contain("unique");
});
});