todoist/src/__tests__/Projects.spec.js

import React from 'react';
import { render, fireEvent, cleanup } from '@testing-library/react';
import { Projects } from '../components/Projects';

beforeEach(cleanup);

jest.mock('../context', () => ({
  useSelectedProjectValue: jest.fn(() => ({
    setSelectedProject: jest.fn(() => 'INBOX'),
  })),
  useProjectsValue: jest.fn(() => ({
    projects: [
      {
        name: '🙌 THE OFFICE',
        projectId: '1',
        userId: 'jlIFXIwyAL3tzHMtzRbw',
        docId: 'michael-scott',
      },
    ],
  })),
}));

describe('<ProjectOverlay', () => {
  afterEach(() => {
    jest.clearAllMocks();
  });

  describe('Success', () => {
    it('renders the projects', () => {
      const { queryByTestId } = render(<Projects />);
      expect(queryByTestId('project-action')).toBeTruthy();
    });

    it('renders the projects and selects an active project using onClick', () => {
      const { queryByTestId } = render(<Projects activeValue="1" />);
      expect(queryByTestId('project-action')).toBeTruthy();

      fireEvent.click(queryByTestId('project-action'));
      expect(
        queryByTestId('project-action-parent').classList.contains('active')
      ).toBeTruthy();
    });

    it('renders the projects and selects an active project using onKeyDown', () => {
      const { queryByTestId } = render(<Projects activeValue="0" />);
      expect(queryByTestId('project-action')).toBeTruthy();

      fireEvent.keyDown(queryByTestId('project-action'), {
        key: 'a',
        code: 65,
      });
      expect(
        queryByTestId('project-action-parent').classList.contains('active')
      ).toBeFalsy();

      fireEvent.keyDown(queryByTestId('project-action'), {
        key: 'Enter',
        code: 13,
      });
      expect(
        queryByTestId('project-action-parent').classList.contains('active')
      ).toBeTruthy();
    });

    it('renders the projects with no active value', () => {
      const { queryByTestId } = render(<Projects activeValue="0" />);
      expect(queryByTestId('project-action')).toBeTruthy();

      fireEvent.keyDown(queryByTestId('project-action'), {
        key: 'a',
        code: 65,
      });
      expect(
        queryByTestId('project-action-parent').classList.contains('active')
      ).toBeFalsy();

      fireEvent.keyDown(queryByTestId('project-action'), {
        key: 'Enter',
        code: 13,
      });
      expect(
        queryByTestId('project-action-parent').classList.contains('active')
      ).toBeTruthy();
    });
  });
});