jira-cli/test/unit/utils/file-api.spec.js

A JIRA Command Line Interface

/*globals, jest, describe*/
const utils = require('../../../lib/utils');
const fs = require('fs');
jest.mock('fs');

describe('utils module', function () {
  beforeEach(() => {
    jest.clearAllMocks();
  });
  describe('createDirectory', function () {
    it('should create directory, when directory not exist', () => {
      //Arrange
      fs.existsSync.mockReturnValue(false);
      //Action
      utils.createDirectory('directoryToCreate');
      //Assert
      expect(fs.mkdir).toHaveBeenCalled();
    });

    it('should not create directory, when directory exist', () => {
      //Arrange
      fs.existsSync.mockReturnValue(true);
      //Action
      utils.createDirectory('directoryToCreate');
      //Assert
      expect(fs.mkdir).not.toHaveBeenCalled();
    });
  });

  describe('deleteFile', function () {
    it('should delete file, when file exist', () => {
      //Arrange
      fs.existsSync.mockReturnValue(true);

      //Action
      utils.deleteFile('aaa/filetodelete');

      //Assert
      expect(fs.unlinkSync).toHaveBeenCalled();
      expect(fs.unlinkSync).toHaveBeenCalledWith('aaa/filetodelete');
    });

    it('should not try to delete file, when file not exist', () => {
      //Arrange
      fs.existsSync.mockReturnValue(false);

      //Action
      utils.deleteFile('aaa/filetodelete');

      //Assert
      expect(fs.unlinkSync).not.toHaveBeenCalled();
    });
  });
});