{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "A schema for files contained within this suite",

  "type": "object",
  "properties": {
    "$schema": {
      "type": "string",
      "pattern": "\\.\\./\\.\\./test-schema.json$"
    },
    "registry": {
      "description": "A collection of schemas, identified by (retrieval) URI which may be referenced in tests in this file.",
      "default": {},
      "type": "object",
      "propertyNames": { "format": "uri-reference" }
    },
    "tests": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": { "$ref": "#test" }
    }
  },
  "required": ["$schema", "tests"],
  "additionalProperties": false,

  "$defs": {
    "test": {
      "$anchor": "test",
      "type": "object",
      "properties": {
        "base_uri": { "type": "string", "format": "uri" },
        "why": {
          "description": "A human-readable explanation of the results of this test.",
          "type": "object",
          "unevaluatedProperties": false,
          "properties": {
            "summary": {
              "description": "A summary of the behavior specified in the linked specifications",
              "type": "string"
            },
            "specifications": {
              "description": "One or more releavnt specifications for this test.",
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "object",
                "oneOf": [{ "required": ["rfc"] }, { "required": ["name"] }],
                "properties": {
                  "rfc": {
                    "description": "An IETF RFC",
                    "type": "number"
                  },
                  "name": {
                    "description": "Any other specification",
                    "type": "string"
                  },
                  "section": { "type": "string" },
                  "link": { "type": "string", "format": "uri" }
                }
              }
            }
          }
        },
        "ref": { "type": "string" },
        "target": {},
        "then": {
          "title": "A further test to run which should maintain state from the initial lookup.",
          "$ref": "#test",
          "properties": { "base_uri": false }
        },
        "error": { "const": true }
      },
      "oneOf": [
        {
          "description": "A test with an expected result to the reference lookup.",
          "required": ["target"]
        },
        {
          "description": "A test with some form of invalid reference. How this is reported will be language-specific.",
          "required": ["error"]
        }
      ],
      "required": ["ref"],
      "unevaluatedProperties": false
    }
  }
}