React API jest test for error handling

import React from 'react';
import { shallow } from 'enzyme';
import Dashboard from './Dashboard';
import moxios from 'moxios';

describe('111', () => {
  const errorMsg = 'Group already exist';

  const event = {
    preventDefault: () => {},
    target: {
      group: '',
      country: ''
    }
  };
  beforeEach(() => {
    moxios.install();
    moxios.stubRequest('/api/dashboard', {
      status: 400,
      response: {
        message: errorMsg
      }
    });
  });

  afterEach(() => {
    moxios.uninstall();
  });

  it('(await for a method) should set error state when dashboard api returns error', async () => {
    const wrapper = shallow(<Dashboard />);
    await wrapper.instance().onFormSubmit(event);
    expect(wrapper.state('error')).toBe(errorMsg);
  });

  it(
    '(promise) should set error state when dashboard api returns error',
    () => {
      const wrapper = shallow(<Dashboard />);
      wrapper.find('form').simulate('submit', event);
      return new Promise(resolve =>
        setImmediate(() => {
          expect(wrapper.state('error')).toBe(errorMsg);
          resolve();
        })
      );
    },
    1000
  );
  it('(await tick) should set error state when dashboard api returns error', async () => {
    const wrapper = shallow(<Dashboard />);
    wrapper.find('form').simulate('submit', event);
    await tick();
    expect(wrapper.state('error')).toBe(errorMsg);
  });

  it('(done) should set error state when dashboard api returns error', done => {
    const wrapper = shallow(<Dashboard />);
    wrapper.find('form').simulate('submit', event);
    setImmediate(() => {
      expect(wrapper.state('error')).toBe(errorMsg);
      done();
    });
  });
});

function tick() {
  return new Promise(resolve => {
    setTimeout(resolve, 1);
  });
}