json-schema-validation-error.rb

#!/usr/bin/ruby

require 'json'
require 'json-schema'

schema = '{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "demo",
    "type": "object",
    "properties": {
        "formats": {
            "type": "array",
            "items": {
                "$ref": "#/definitions/format"
            }
        }
    },
    "definitions": {
        "format": {
            "oneOf": [
                {
                    "$ref": "#/definitions/format_ascii"
                },
                {
                    "$ref": "#/definitions/format_binary"
                }
            ]
        },
        "format_ascii": {
            "type": "object",
            "properties": {
                "encoding": {
                    "type": "string",
                    "enum": [
                        "ascii"
                    ],
                    "default": "ascii"
                },
                "scale": {
                    "type": "number",
                    "default": 1
                }
            },
            "additionalProperties": false
        },
        "format_binary": {
            "type": "object",
            "properties": {
                "encoding": {
                    "type": "string",
                    "enum": [
                        "binary"
                    ],
                    "default": "binary"
                },
                "order": {
                    "type": "string",
                    "enum": [
                        "little",
                        "big",
                        "network"
                    ]
                }
            },
            "required": [
                "order"
            ],
            "additionalProperties": false
        }
    }
}'


data = '{
    "formats": [ { "scale": 1}, { "order": "little"} ]
}'

json = JSON.parse(data)
JSON::Validator.fully_validate(schema, json, :insert_defaults => true)
puts json.inspect
puts JSON::Validator.fully_validate(schema, json)