[{
    "given":
        {"foo": {"bar": ["zero", "one", "two"]}},
     "cases": [
         {
            "expression": "foo.bar[0]",
            "result": "zero"
         },
         {
            "expression": "foo.bar[1]",
            "result": "one"
         },
         {
            "expression": "foo.bar[2]",
            "result": "two"
         },
         {
            "expression": "foo.bar[3]",
            "result": null
         },
         {
            "expression": "foo.bar[-1]",
            "result": "two"
         },
         {
            "expression": "foo.bar[-2]",
            "result": "one"
         },
         {
            "expression": "foo.bar[-3]",
            "result": "zero"
         },
         {
            "expression": "foo.bar[-4]",
            "result": null
         }
     ]
},
{
    "given":
        {"foo": [{"bar": "one"}, {"bar": "two"}, {"bar": "three"}, {"notbar": "four"}]},
     "cases": [
         {
            "expression": "foo.bar",
            "result": null
         },
         {
            "expression": "foo[0].bar",
            "result": "one"
         },
         {
            "expression": "foo[1].bar",
            "result": "two"
         },
         {
            "expression": "foo[2].bar",
            "result": "three"
         },
         {
            "expression": "foo[3].notbar",
            "result": "four"
         },
         {
            "expression": "foo[3].bar",
            "result": null
         },
         {
            "expression": "foo[0]",
            "result": {"bar": "one"}
         },
         {
            "expression": "foo[1]",
            "result": {"bar": "two"}
         },
         {
            "expression": "foo[2]",
            "result": {"bar": "three"}
         },
         {
            "expression": "foo[3]",
            "result": {"notbar": "four"}
         },
         {
            "expression": "foo[4]",
            "result": null
         }
     ]
},
{
    "given": [
        "one", "two", "three"
    ],
     "cases": [
         {
            "expression": "[0]",
            "result": "one"
         },
         {
            "expression": "[1]",
            "result": "two"
         },
         {
            "expression": "[2]",
            "result": "three"
         },
         {
            "expression": "[-1]",
            "result": "three"
         },
         {
            "expression": "[-2]",
            "result": "two"
         },
         {
            "expression": "[-3]",
            "result": "one"
         }
     ]
},
{
    "given": {"reservations": [
        {"instances": [{"foo": 1}, {"foo": 2}]}
    ]},
    "cases": [
        {
           "expression": "reservations[].instances[].foo",
           "result": [1, 2]
        },
        {
           "expression": "reservations[].instances[].bar",
           "result": []
        },
        {
           "expression": "reservations[].notinstances[].foo",
           "result": []
        },
        {
           "expression": "reservations[].notinstances[].foo",
           "result": []
        }
    ]
},
{
    "given": {"reservations": [{
        "instances": [
            {"foo": [{"bar": 1}, {"bar": 2}, {"notbar": 3}, {"bar": 4}]},
            {"foo": [{"bar": 5}, {"bar": 6}, {"notbar": [7]}, {"bar": 8}]},
            {"foo": "bar"},
            {"notfoo": [{"bar": 20}, {"bar": 21}, {"notbar": [7]}, {"bar": 22}]},
            {"bar": [{"baz": [1]}, {"baz": [2]}, {"baz": [3]}, {"baz": [4]}]},
            {"baz": [{"baz": [1, 2]}, {"baz": []}, {"baz": []}, {"baz": [3, 4]}]},
            {"qux": [{"baz": []}, {"baz": [1, 2, 3]}, {"baz": [4]}, {"baz": []}]}
        ],
        "otherkey": {"foo": [{"bar": 1}, {"bar": 2}, {"notbar": 3}, {"bar": 4}]}
      }, {
        "instances": [
            {"a": [{"bar": 1}, {"bar": 2}, {"notbar": 3}, {"bar": 4}]},
            {"b": [{"bar": 5}, {"bar": 6}, {"notbar": [7]}, {"bar": 8}]},
            {"c": "bar"},
            {"notfoo": [{"bar": 23}, {"bar": 24}, {"notbar": [7]}, {"bar": 25}]},
            {"qux": [{"baz": []}, {"baz": [1, 2, 3]}, {"baz": [4]}, {"baz": []}]}
        ],
        "otherkey": {"foo": [{"bar": 1}, {"bar": 2}, {"notbar": 3}, {"bar": 4}]}
      }
    ]},
    "cases": [
        {
           "expression": "reservations[].instances[].foo[].bar",
           "result": [1, 2, 4, 5, 6, 8]
        },
        {
           "expression": "reservations[].instances[].foo[].baz",
           "result": []
        },
        {
           "expression": "reservations[].instances[].notfoo[].bar",
           "result": [20, 21, 22, 23, 24, 25]
        },
        {
           "expression": "reservations[].instances[].notfoo[].notbar",
           "result": [[7], [7]]
        },
        {
           "expression": "reservations[].notinstances[].foo",
           "result": []
        },
        {
           "expression": "reservations[].instances[].foo[].notbar",
           "result": [3, [7]]
        },
        {
           "expression": "reservations[].instances[].bar[].baz",
           "result": [[1], [2], [3], [4]]
        },
        {
           "expression": "reservations[].instances[].baz[].baz",
           "result": [[1, 2], [], [], [3, 4]]
        },
        {
           "expression": "reservations[].instances[].qux[].baz",
           "result": [[], [1, 2, 3], [4], [], [], [1, 2, 3], [4], []]
        },
        {
           "expression": "reservations[].instances[].qux[].baz[]",
           "result": [1, 2, 3, 4, 1, 2, 3, 4]
        }
    ]
},
{
    "given": {
        "foo": [
            [["one", "two"], ["three", "four"]],
            [["five", "six"], ["seven", "eight"]],
            [["nine"], ["ten"]]
        ]
     },
    "cases": [
        {
           "expression": "foo[]",
           "result": [["one", "two"], ["three", "four"], ["five", "six"],
                      ["seven", "eight"], ["nine"], ["ten"]]
        },
        {
           "expression": "foo[][0]",
           "result": ["one", "three", "five", "seven", "nine", "ten"]
        },
        {
           "expression": "foo[][1]",
           "result": ["two", "four", "six", "eight"]
        },
        {
           "expression": "foo[][0][0]",
           "result": []
        },
         {
            "expression": "foo[][2][2]",
            "result": []
         },
         {
            "expression": "foo[][0][0][100]",
            "result": []
         }
    ]
},
{
    "given": {
      "foo": [{
          "bar": [
            {
              "qux": 2,
              "baz": 1
            },
            {
              "qux": 4,
              "baz": 3
            }
          ]
        },
        {
          "bar": [
            {
              "qux": 6,
              "baz": 5
            },
            {
              "qux": 8,
              "baz": 7
            }
          ]
        }
      ]
    },
    "cases": [
        {
           "expression": "foo",
           "result": [{"bar": [{"qux": 2, "baz": 1}, {"qux": 4, "baz": 3}]},
                      {"bar": [{"qux": 6, "baz": 5}, {"qux": 8, "baz": 7}]}]
        },
        {
           "expression": "foo[]",
           "result": [{"bar": [{"qux": 2, "baz": 1}, {"qux": 4, "baz": 3}]},
                      {"bar": [{"qux": 6, "baz": 5}, {"qux": 8, "baz": 7}]}]
        },
        {
           "expression": "foo[].bar",
           "result": [[{"qux": 2, "baz": 1}, {"qux": 4, "baz": 3}],
                      [{"qux": 6, "baz": 5}, {"qux": 8, "baz": 7}]]
        },
        {
           "expression": "foo[].bar[]",
           "result": [{"qux": 2, "baz": 1}, {"qux": 4, "baz": 3},
                      {"qux": 6, "baz": 5}, {"qux": 8, "baz": 7}]
        },
        {
           "expression": "foo[].bar[].baz",
           "result": [1, 3, 5, 7]
        }
    ]
},
{
    "given": {
        "string": "string",
        "hash": {"foo": "bar", "bar": "baz"},
        "number": 23,
        "nullvalue": null
     },
     "cases": [
         {
            "expression": "string[]",
            "result": null
         },
         {
            "expression": "hash[]",
            "result": null
         },
         {
            "expression": "number[]",
            "result": null
         },
         {
            "expression": "nullvalue[]",
            "result": null
         },
         {
            "expression": "string[].foo",
            "result": null
         },
         {
            "expression": "hash[].foo",
            "result": null
         },
         {
            "expression": "number[].foo",
            "result": null
         },
         {
            "expression": "nullvalue[].foo",
            "result": null
         },
         {
            "expression": "nullvalue[].foo[].bar",
            "result": null
         }
     ]
}
]