diff --git a/json/README.md b/json/README.md
index d0b4640..7c4cfbf 100644
--- a/json/README.md
+++ b/json/README.md
@@ -76,6 +76,7 @@ This suite is being used by:
   * [json_schema (Dart)](https://github.com/patefacio/json_schema) 
   * [tv4 (JavaScript)](https://github.com/geraintluff/tv4)
   * [Jsonary (JavaScript)](https://github.com/jsonary-js/jsonary)
+  * [json-schema (Ruby)](https://github.com/hoxworth/json-schema)
 
 If you use it as well, please fork and send a pull request adding yourself to
 the list :).
diff --git a/json/tests/draft3/default.json b/json/tests/draft3/default.json
new file mode 100644
index 0000000..1762977
--- /dev/null
+++ b/json/tests/draft3/default.json
@@ -0,0 +1,49 @@
+[
+    {
+        "description": "invalid type for default",
+        "schema": {
+            "properties": {
+                "foo": {
+                    "type": "integer",
+                    "default": []
+                }
+            }
+        },
+        "tests": [
+            {
+                "description": "valid when property is specified",
+                "data": {"foo": 13},
+                "valid": true
+            },
+            {
+                "description": "still valid when the invalid default is used",
+                "data": {},
+                "valid": true
+            }
+        ]
+    },
+    {
+        "description": "invalid string value for default",
+        "schema": {
+            "properties": {
+                "bar": {
+                    "type": "string",
+                    "minLength": 4,
+                    "default": "bad"
+                }
+            }
+        },
+        "tests": [
+            {
+                "description": "valid when property is specified",
+                "data": {"bar": "good"},
+                "valid": true
+            },
+            {
+                "description": "still valid when the invalid default is used",
+                "data": {},
+                "valid": true
+            }
+        ]
+    }
+]
diff --git a/json/tests/draft4/default.json b/json/tests/draft4/default.json
new file mode 100644
index 0000000..1762977
--- /dev/null
+++ b/json/tests/draft4/default.json
@@ -0,0 +1,49 @@
+[
+    {
+        "description": "invalid type for default",
+        "schema": {
+            "properties": {
+                "foo": {
+                    "type": "integer",
+                    "default": []
+                }
+            }
+        },
+        "tests": [
+            {
+                "description": "valid when property is specified",
+                "data": {"foo": 13},
+                "valid": true
+            },
+            {
+                "description": "still valid when the invalid default is used",
+                "data": {},
+                "valid": true
+            }
+        ]
+    },
+    {
+        "description": "invalid string value for default",
+        "schema": {
+            "properties": {
+                "bar": {
+                    "type": "string",
+                    "minLength": 4,
+                    "default": "bad"
+                }
+            }
+        },
+        "tests": [
+            {
+                "description": "valid when property is specified",
+                "data": {"bar": "good"},
+                "valid": true
+            },
+            {
+                "description": "still valid when the invalid default is used",
+                "data": {},
+                "valid": true
+            }
+        ]
+    }
+]