old_contents: var assert = require('assert');
  var configMergeLoader = require('../index.js');
  
  describe('configMergeLoader', function() {
    it('should return an function', function() {
      assert.equal(typeof configMergeLoader, 'function');
    });
  });
  
new_contents: var assert = require('assert');
  var configMergeLoader = require('../index.js');
  
  describe('configMergeLoader', function() {
    it('should return an function', function() {
      assert.equal(typeof configMergeLoader, 'function');
    });
  
    describe('the function', function() {
      var mergedObj = configMergeLoader();
  
      it('should return an object', function() {
        assert.equal(typeof mergedObj, 'object');
      });
    });
  });
  
subject: Test that function returns and object