draft-06: $ref to boolean schemas

Author: epoberezkin

tests/draft6/ref.json

@@ -208,5 +208,37 @@
                 "valid": false
             }
         ]
+    },
+    {
+        "description": "$ref to boolean schema true",
+        "schema": {
+            "$ref": "#/definitions/bool",
+            "definitions": {
+                "bool": true
+            }
+        },
+        "tests": [
+            {
+                "description": "any value is valid",
+                "data": "foo",
+                "valid": true
+            }
+        ]
+    },
+    {
+        "description": "$ref to boolean schema false",
+        "schema": {
+            "$ref": "#/definitions/bool",
+            "definitions": {
+                "bool": false
+            }
+        },
+        "tests": [
+            {
+                "description": "any value is invalid",
+                "data": "foo",
+                "valid": false
+            }
+        ]
     }
 ]