diff --git a/jjtest.cc b/jjtest.cc
new file mode 100644
index 0000000..cfb1694
--- /dev/null
+++ b/jjtest.cc
@@ -0,0 +1,109 @@
+#include "json/json.h" // jsoncpp rolled up
+
+#include <iostream>
+#include <regex>
+
+#define STRINGY1(arg) #arg
+#define STRINGY2(arg) STRINGY1(arg)
+
+#define deblog(args)  { \
+    std::cerr <<  __FILE__  ":" STRINGY2(__LINE__ ) ": " ; \
+    std::cerr << args << " "<< __PRETTY_FUNCTION__  << '\n'; \
+}
+
+#include <valijson/adapters/jsoncpp_adapter.hpp>
+#include <valijson/schema.hpp>
+#include <valijson/schema_parser.hpp>
+#include <valijson/validation_results.hpp>
+#include <valijson/validator.hpp>
+
+using valijson::Schema;
+using valijson::SchemaParser;
+using valijson::Validator;
+using valijson::ValidationResults;
+using valijson::adapters::JsonCppAdapter;
+
+using namespace std;
+
+Json::Value jsonParse(const string &jsonStr) {
+     Json::Value retJson;
+     Json::Reader json_reader;
+     if (jsonStr.length() != 0) {
+         if (!json_reader.parse(jsonStr, retJson)) {
+             throw runtime_error("json parse failure\n"
+                 + json_reader.getFormattedErrorMessages());
+         }
+     }
+     return retJson;
+}
+
+const static string badttl (R"(
+{ 
+    "foo" : -10,
+    "bar" : "xxx"
+}
+)");
+
+const static string tschema(R"(
+{
+    "type" : "object",
+    "properties" : {
+        "foo" : { 
+            "type": "integer",
+            "minimum": 0,
+             "maximum": 2147483647
+        },
+        "bar" : {
+            "type": "string",
+            "pattern": "1.1.1.1"
+        }
+    },
+    "required": ["foo", "bar"],
+    "additionalProperties": false
+}
+)");
+
+std::string err2String(ValidationResults& results) {
+    ValidationResults::Error error;
+    std::stringstream strstr;
+    while (results.popError(error)) {
+        strstr << error.description;
+        for (std::string& str : error.context)
+            strstr << str;
+        strstr << "\n";
+    }
+    return strstr.str();
+}
+
+int main(int argc,char ** argv) {
+    Json::Value schemaJson(jsonParse(tschema));
+
+    JsonCppAdapter schemaDocumentAdapter(schemaJson);
+
+    SchemaParser parser;
+    Schema schema;
+    parser.populateSchema(schemaDocumentAdapter, schema);
+
+    Json::Value doc(jsonParse(badttl));
+    JsonCppAdapter targetDocumentAdapter(doc);
+    deblog("doc " << doc);
+    deblog("schema" << schemaJson);
+    ValidationResults results;
+    Validator validator;
+    std::regex bar("Failed.*bar");
+    std::regex foo("Failed.*foo");
+    if (validator.validate(schema,targetDocumentAdapter, &results)) {
+        deblog("oops, should have failed " << err2String(results));
+    } else {
+        std::string err(err2String(results));
+        deblog("error out:\n" << err2String(results));
+        if (!regex_search(err, bar)) {
+            deblog("failed to complain about bar");
+        } else if (!regex_search(err, foo)) {
+            deblog("failed to complain about foo");
+        } else {
+            deblog("success");
+        }
+    }
+}
+