diff --git a/package.json b/package.json
index 529634e..9b5ff78 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Node.js implementation of ruby-grok.",
   "main": "lib/grok.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "mocha"
   },
   "repository": {
     "type": "git",
@@ -19,8 +19,11 @@
   ],
   "readmeFilename": "Readme.markdown",
   "dependencies": {
-    "ffi": "~1.2.0",
-    "ref-struct": "0.0.4",
-    "ref": "~0.1.3"
+    "ffi": "^2.0.0",
+    "ref": "^1.2.0",
+    "ref-struct": "^1.0.2"
+  },
+  "devDependencies": {
+    "mocha": "^2.3.3"
   }
 }
diff --git a/test/grok.js b/test/grok.js
new file mode 100644
index 0000000..dcc9614
--- /dev/null
+++ b/test/grok.js
@@ -0,0 +1,15 @@
+var assert = require("assert");
+
+describe("Grok", function(){
+  it("readme example works", function(){
+    var grok = require("../lib/grok.js");
+    matcher = grok.create();
+    matcher.addPatternsFromFile('./patterns/base');
+
+    matcher.compile("%{IP:ip_address} %{WORD:text}");
+    res = matcher.match("does not match");
+    assert.equal(res, false);
+    res = matcher.match("127.0.0.1 home");
+    assert.deepEqual(res.captures(), { ip_address: [ '127.0.0.1' ], text: [ 'home' ] });
+  })
+})