@bbc/spartacus/src/helpers/tests/testHelpers.js

SPArtacus

import renderer from 'react-test-renderer'; // eslint-disable-line import/no-extraneous-dependencies
import 'jest-styled-components'; // eslint-disable-line import/no-extraneous-dependencies
import ShallowRenderer from 'react-test-renderer/shallow'; // eslint-disable-line import/no-extraneous-dependencies

export const shouldMatchSnapshot = (title, component) => {
  it(title, () => {
    const tree = renderer.create(component).toJSON();
    expect(tree).toMatchSnapshot();
  });
};

export const shallowRender = component => {
  const shallowRenderer = new ShallowRenderer();
  shallowRenderer.render(component);
  const result = shallowRenderer.getRenderOutput();

  return result;
};

export const shouldShallowMatchSnapshot = (title, component) => {
  it(title, () => {
    const tree = shallowRender(component);
    expect(tree).toMatchSnapshot();
  });
};

export const isNull = (title, component) => {
  it(title, () => {
    const tree = renderer.create(component).toJSON();
    expect(tree).toBeNull();
  });
};