[
  {
    "description": "parent and child must be declared and",
    "code": "equal(typeof parent, 'object')\nequal(typeof child, 'object')"
  },
  {
    "description": "parent.child must be equal to child",
    "code": "equal(parent.child, child)"
  },
  {
    "description": "child.parent must be equal to parent",
    "code": "equal(child.parent, parent)"
  },
  {
    "description": "child.parent.child must be equal to itself",
    "code": "equal(child.parent.child, child)"
  }
]