text: import join from "../join";
  
  describe("join function", () => {
    it("Joins elements with no separator.", () => {
      const array = [6, 7, 8, 9, 10];
      const joined = join(array);
  
      expect(joined).toEqual("6,7,8,9,10");
    });
  
    it("Joins elements with specific separator.", () => {
      const array = [11, 12, 13, 14, 15];
      const joined = join(array, "/");
  
      expect(joined).toEqual("11/12/13/14/15");
    });
  });
  