text: const func = require('../src/wiggle-sort-2');
  const assert = require('assert');
  describe('wiggle-sort-2', function () {
      describe('#wiggleSort()', function () {
          it('should return [1,6,1,5,1,4] when given [1,5,1,1,6,4]', function () {
              let arr = [1, 5, 1, 1, 6, 4];
              func(arr);
              assert.deepEqual(arr, [1, 6, 1, 5, 1, 4]);
          });
          it('should return [5,6,4,5] when given [4,5,5,6]', function () {
              let arr = [4, 5, 5, 6];
              func(arr);
              assert.deepEqual(arr, [5, 6, 4, 5]);
          });
          it('should return [2,3,1,3,1,2] when given [1,3,2,2,3,1]', function () {
              let arr = [1, 3, 2, 2, 3, 1];
              func(arr);
              assert.deepEqual(arr, [2, 3, 1, 3, 1, 2]);
          });
      });
  });