text: const LinkedList = require ('../linked-list.js');
  let test = new LinkedList();
  
  describe ('tests our linked list implementation and methods', () => {
    beforeEach(() => {
      test = new LinkedList();
    })
  
  
    it ('will return true if a searched value exists in a linked list', () =>{
      test.append(4)
      test.append(6)
      test.append(7)
      test.append(8)
      test.includes(9)
      expect(test.firstOdd()).toBe(7);
    });
  
    it ('will return true if a searched value exists in a linked list', () =>{
      test.append(1)
      test.append(6)
      test.append(7)
      test.append(8)
      test.includes(9)
      expect(test.firstOdd()).toBe(1);
    });
  
    it ('will return true if a searched value exists in a linked list', () =>{
      test.insert(2)
      test.insert(2)
      test.insert(4)
      test.insert(4)
      test.insert(5)
      expect(test.firstOdd()).toBe(5);
    });
  
  });