old_contents: var expect = require('chai').expect;
  var parse = require('../src/commands/parse');
  
  describe('YAML-to-commands parser', () => {
    var filename = 'test/test.usher.yml';
    var result = parse(filename);
    var tests = [
      {
        key: 'basic',
        expected: 'docker build -t usher .'
      },
      {
        key: 'custom',
        expected: 'do thing'
      },
      {
        key: 'sequence',
        expected: [
          'docker build -t usher .',
          'do thing'
        ]
      },
      {
        key: 'bogus',
        expected: false
      },
      {
        key: 'null',
        expected: false
      }
    ];
  
    tests.forEach( test =>
      it(`should make command ${test.key} ==> ${test.expected}`, () =>
        expect(result[test.key]).to.deep.equal(test.expected)));
  });
  
new_contents: "use strict";
  
  var expect = require('chai').expect;
  var parse = require('../src/commands/parse');
  
  describe('YAML-to-commands parser', () => {
    let filename = 'test/test.usher.yml';
    let result = parse(filename);
    let tests = [
      {
        key: 'basic',
        expected: 'docker build -t usher .'
      },
      {
        key: 'custom',
        expected: 'do thing'
      },
      {
        key: 'sequence',
        expected: [
          'docker build -t usher .',
          'do thing'
        ]
      },
      {
        key: 'bogus',
        expected: false
      },
      {
        key: 'null',
        expected: false
      }
    ];
  
    tests.forEach( test =>
      it(`should make command ${test.key} ==> ${test.expected}`, () =>
        expect(result[test.key]).to.deep.equal(test.expected)));
  });
  
subject: Make some vars lets for strictness purposes.