text: const assert = require('assert');
  
  // Naive approach
  describe('.pop', () => {
      it('returns the last element in the array [naive]', () => {
          assert.ok(['padawan', 'knight'].pop() === 'knight');
      });
  });
  
  // 3 phase approach
  describe('.pop', () => {
      it('returns the last element in the array [3phase]', () => {
          // Setup
          const knightString = 'knight';
          const jediPath = ['padawan', knightString];
  
          // Exercise
          const popped = jediPath.pop();
  
          // Verify
          assert.ok(popped === knightString);
      });
  });
  