[
  {
    "description": "\"contains\" allows empty array when ref is used in sibling property (#502)",
    "schema": {
      "type": "object",
      "properties": {
        "str": { "$ref": "#/definitions/str" },
        "arr": {
          "type": "array",
          "contains": { "type": "number" }
        }
      },
      "definitions": {
        "str": { "type": "string" }
      }
    },
    "tests": [
      {
        "description": "valid object 1",
        "data": {
          "str": "a",
          "arr": [1]
        },
        "valid": true
      },
      {
        "description": "valid object 2",
        "data": {
          "arr": [1]
        },
        "valid": true
      },
      {
        "description": "invalid object 1",
        "data": {
          "str": "a",
          "arr": ["b"]
        },
        "valid": false
      },
      {
        "description": "invalid object 2",
        "data": {
          "arr": ["b"]
        },
        "valid": false
      },
      {
        "description": "invalid object 3",
        "data": {
          "arr": []
        },
        "valid": false
      },
      {
        "description": "invalid object 4 (fails in #502)",
        "data": {
          "str": "a",
          "arr": []
        },
        "valid": false
      }
    ]
  }
]