Add option to also validate the schema

README.md

@@ -188,6 +188,7 @@ third argument to `Validator::validate()`, or can be provided as the third argum
 | `Constraint::CHECK_MODE_COERCE_TYPES` | Convert data types to match the schema where possible |
 | `Constraint::CHECK_MODE_APPLY_DEFAULTS` | Apply default values from the schema if not set |
 | `Constraint::CHECK_MODE_EXCEPTIONS` | Throw an exception immediately if validation fails |
+| `Constraint::CHECK_MODE_VALIDATE_SCHEMA` | Validate the schema as well as the provided document |
 
 Please note that using `Constraint::CHECK_MODE_COERCE_TYPES` or `Constraint::CHECK_MODE_APPLY_DEFAULTS`
 will modify your original data.

schema-validation/json-schema-draft-03.json

@@ -0,0 +1,193 @@
+{
+  "$schema": "http://json-schema.org/draft-03/schema#",
+  "id": "http://json-schema.org/draft-03/schema#",
+  "type": "object",
+  "properties": {
+    "type": {
+      "type": [
+        "string",
+        "array"
+      ],
+      "items": {
+        "type": [
+          "string",
+          {
+            "$ref": "#"
+          }
+        ]
+      },
+      "uniqueItems": true,
+      "default": "any"
+    },
+    "properties": {
+      "type": "object",
+      "additionalProperties": {
+        "$ref": "#"
+      },
+      "default": {}
+    },
+    "patternProperties": {
+      "type": "object",
+      "additionalProperties": {
+        "$ref": "#"
+      },
+      "default": {}
+    },
+    "additionalProperties": {
+      "type": [
+        {
+          "$ref": "#"
+        },
+        "boolean"
+      ],
+      "default": {}
+    },
+    "items": {
+      "type": [
+        {
+          "$ref": "#"
+        },
+        "array"
+      ],
+      "items": {
+        "$ref": "#"
+      },
+      "default": {}
+    },
+    "additionalItems": {
+      "type": [
+        {
+          "$ref": "#"
+        },
+        "boolean"
+      ],
+      "default": {}
+    },
+    "required": {
+      "type": "boolean",
+      "default": false
+    },
+    "dependencies": {
+      "type": "object",
+      "additionalProperties": {
+        "type": [
+          "string",
+          "array",
+          {
+            "$ref": "#"
+          }
+        ],
+        "items": {
+          "type": "string"
+        }
+      },
+      "default": {}
+    },
+    "minimum": {
+      "type": "number"
+    },
+    "maximum": {
+      "type": "number"
+    },
+    "exclusiveMinimum": {
+      "type": "boolean",
+      "default": false
+    },
+    "exclusiveMaximum": {
+      "type": "boolean",
+      "default": false
+    },
+    "minItems": {
+      "type": "integer",
+      "minimum": 0,
+      "default": 0
+    },
+    "maxItems": {
+      "type": "integer",
+      "minimum": 0
+    },
+    "uniqueItems": {
+      "type": "boolean",
+      "default": false
+    },
+    "pattern": {
+      "type": "string",
+      "format": "regex"
+    },
+    "minLength": {
+      "type": "integer",
+      "minimum": 0,
+      "default": 0
+    },
+    "maxLength": {
+      "type": "integer"
+    },
+    "enum": {
+      "type": "array",
+      "minItems": 1,
+      "uniqueItems": true
+    },
+    "default": {
+      "type": "any"
+    },
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "format": {
+      "type": "string"
+    },
+    "divisibleBy": {
+      "type": "number",
+      "minimum": 0,
+      "exclusiveMinimum": true,
+      "default": 1
+    },
+    "disallow": {
+      "type": [
+        "string",
+        "array"
+      ],
+      "items": {
+        "type": [
+          "string",
+          {
+            "$ref": "#"
+          }
+        ]
+      },
+      "uniqueItems": true
+    },
+    "extends": {
+      "type": [
+        {
+          "$ref": "#"
+        },
+        "array"
+      ],
+      "items": {
+        "$ref": "#"
+      },
+      "default": {}
+    },
+    "id": {
+      "type": "string",
+      "format": "uri"
+    },
+    "$ref": {
+      "type": "string",
+      "format": "uri"
+    },
+    "$schema": {
+      "type": "string",
+      "format": "uri"
+    }
+  },
+  "dependencies": {
+    "exclusiveMinimum": "minimum",
+    "exclusiveMaximum": "maximum"
+  },
+  "default": {}
+}