FilterBar-test.js

import React from 'react';
import sinon from 'sinon';
import { shallow } from 'enzyme';

import FilterBar from 'components/filter/FilterBar';

const sampleFilters = { ids: [1, 2] };

describe('Testing FilterBar', () => {
  it('removeFilters removes filters as expected', () => {
    const onFiltersChangeSpy = sinon.spy();
    const render = shallow(
      <FilterBar filters={sampleFilters} onFiltersChange={onFiltersChangeSpy} />
    );
    
    render.instance().removeFilter({ id: 1 });
    render.instance().removeFilter({ id: 2 });
    
    expect(onFiltersChangeSpy.args).toMatchSnapshot();
  });
});