import SomeComponent from '../SomeComponent';
import Enzyme, { render, shallow, mount } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
import React from 'react';

describe("enzyme tests life cycles", () => {
  Enzyme.configure({adapter: new Adapter()});

  let renderSpy, getDerivedStateFromPropsSpy, componentDidMountSpy,
    shouldComponentUpdateSpy, componentDidUpdateSpy, componentWillUnmountSpy, componentWillMountSpy,
    componentWillUpdateSpy, componentWillReceivePropsSpy;
  beforeEach(() => {
    renderSpy = jest.spyOn(SomeComponent.prototype, 'render');
    getDerivedStateFromPropsSpy = jest.spyOn(SomeComponent, 'getDerivedStateFromProps');
    componentDidMountSpy = jest.spyOn(SomeComponent.prototype, 'componentDidMount');
    shouldComponentUpdateSpy = jest.spyOn(SomeComponent.prototype, 'shouldComponentUpdate');
    componentDidUpdateSpy = jest.spyOn(SomeComponent.prototype, 'componentDidUpdate');
    componentWillUnmountSpy = jest.spyOn(SomeComponent.prototype, 'componentWillUnmount');
    componentWillMountSpy = jest.spyOn(SomeComponent.prototype, 'componentWillMount');
    componentWillUpdateSpy = jest.spyOn(SomeComponent.prototype, 'componentWillUpdate');
    componentWillReceivePropsSpy = jest.spyOn(SomeComponent.prototype, 'componentWillReceiveProps');
  });
  afterEach(() => {
    jest.clearAllMocks();
  });


  it('shallow called hooks', async () => {
    const wrapper = shallow(<SomeComponent/>);
    expect(renderSpy).toHaveBeenCalledTimes(1);
    expect(getDerivedStateFromPropsSpy).toHaveBeenCalledTimes(1);
    expect(componentWillMountSpy).not.toHaveBeenCalled();
    expect(componentDidMountSpy).toHaveBeenCalledTimes(1);
    expect(shouldComponentUpdateSpy).not.toHaveBeenCalled();
    expect(componentDidUpdateSpy).not.toHaveBeenCalled();
    expect(componentWillUnmountSpy).not.toHaveBeenCalled();

    await wrapper.setProps({a: 1});
    expect(getDerivedStateFromPropsSpy).toHaveBeenCalledTimes(2);
    expect(componentWillReceivePropsSpy).not.toHaveBeenCalled();
    expect(shouldComponentUpdateSpy).toHaveBeenCalledTimes(1);
    expect(componentWillUpdateSpy).not.toHaveBeenCalled();
    expect(componentDidUpdateSpy).toHaveBeenCalledTimes(1);
    expect(componentWillUnmountSpy).not.toHaveBeenCalled();

  });
});