react-native-komect-uikit/src/icons/__tests__/Icon.js

React Native UI Toolkit

import React from 'react';
import { shallow } from 'enzyme';
import toJson from 'enzyme-to-json';
import Icon from '../Icon';

describe('Icon component', () => {
  it('should render without issues', () => {
    const component = shallow(<Icon name="wifi" />);

    expect(component.length).toBe(1);
    expect(toJson(component)).toMatchSnapshot();
  });

  it('should render with icon type', () => {
    const component = shallow(
      <Icon
        name="alert"
        type="octicon"
        reverse
        color="red"
        iconStyle={{ backgroundColor: 'peru' }}
      />
    );

    expect(component.length).toBe(1);
    expect(toJson(component)).toMatchSnapshot();
  });

  it('should have onPress event', () => {
    const onPress = jest.fn();
    const component = shallow(<Icon onPress={onPress} name="wifi" />);

    component.simulate('press');
    expect(onPress).toHaveBeenCalledTimes(1);
  });
});