text: // adds Manager constructor
  const Manager = require("../lib/manager");
  
  test("creates an Manager obj", () => {
    // make an instance of manager
    const manager = new Manager("Andy", 46, "andrew.j.currie0@gmail.com", 13);
  
    // check that Office Number is of correct constructor
    expect(manager.offNum).toEqual(expect.any(Number));
  });
  
  test("retrieves manager Role", () => {
    // make an instance of manager
    const manager = new Manager("Andy", 46, "andrew.j.currie0@gmail.com", 13);
  
    // testing getRole() method
    expect(manager.getRole()).toEqual("Manager");
  });
  