diff --git a/test/hookioAppender.js b/test/hookioAppender.js
new file mode 100644
index 0000000..70c19b9
--- /dev/null
+++ b/test/hookioAppender.js
@@ -0,0 +1,88 @@
+var vows = require('vows');
+var assert = require('assert');
+var sandbox = require('sandboxed-module');
+
+function fancyResultingHookioAppender(opts) {
+  var result = { ons: {}, emissions: {}, logged: [] };
+  var fakeLog4Js = {
+    appenderMakers: { file: function (config) {
+      return function log(logEvent) {
+        result.logged.push(logEvent);
+      }
+    }}
+  };
+  var fakeHookIo = { Hook: function() { } };
+  fakeHookIo.Hook.prototype.start = function () {
+    result.startCalled = true;
+  };
+  fakeHookIo.Hook.prototype.on = function (eventName, functionToExec) {
+    result.ons[eventName] = { functionToExec: functionToExec };
+    if (eventName === 'hook::ready') {
+      functionToExec();
+    }
+  };
+  fakeHookIo.Hook.prototype.emit = function (eventName, data) {
+    result.emissions[eventName] = result.emissions[eventName] || [];
+    result.emissions[eventName].push({data: data});
+    var on = '*::' + eventName;
+    if (eventName !== 'hook::ready' && result.ons[on]) {
+      result.ons[on].callingCount = result.ons[on].callingCount ? result.ons[on].callingCount += 1 : 1;
+      result.ons[on].functionToExec(data);
+    }
+  };
+  return { theResult: result,
+    theModule: sandbox.require('../lib/appenders/hookio', {
+      requires: {
+        '../log4js': fakeLog4Js,
+        'hook.io': fakeHookIo
+      }
+    })
+  };
+}
+
+
+vows.describe('log4js hookioAppender').addBatch({
+  'master': {
+    topic: function() {
+      var fancy = fancyResultingHookioAppender();
+      var logger = fancy.theModule.configure({ name: 'ohno', mode: 'master', appender: { type: 'file' } });
+      logger({ level: { levelStr: 'INFO' }, data: "ALRIGHTY THEN", startTime: '2011-10-27T03:53:16.031Z' });
+      logger({ level: { levelStr: 'DEBUG' }, data: "OH WOW", startTime: '2011-10-27T04:53:16.031Z'});
+      return fancy.theResult;
+    },
+
+    'should write to the actual appender': function (result) {
+      assert.isTrue(result.startCalled);
+      assert.equal(result.logged.length, 2);
+      assert.equal(result.emissions['ohno::log'].length, 2);
+      assert.equal(result.ons['*::ohno::log'].callingCount, 2);
+    },
+
+    'data written should be formatted correctly': function (result) {
+      assert.equal(result.logged[0].level.toString(), 'INFO');
+      assert.equal(result.logged[0].data, 'ALRIGHTY THEN');
+      assert.isTrue(typeof(result.logged[0].startTime) === 'object');
+      assert.equal(result.logged[1].level.toString(), 'DEBUG');
+      assert.equal(result.logged[1].data, 'OH WOW');
+      assert.isTrue(typeof(result.logged[1].startTime) === 'object');
+    }
+  },
+  'worker': {
+    'should emit logging events to the master': {
+      topic: function() {
+        var fancy = fancyResultingHookioAppender();
+        var logger = fancy.theModule.configure({ name: 'ohno', mode: 'worker', appender: { type: 'file' } });
+        logger({ level: { levelStr: 'INFO' }, data: "ALRIGHTY THEN", startTime: '2011-10-27T03:53:16.031Z' });
+        logger({ level: { levelStr: 'DEBUG' }, data: "OH WOW", startTime: '2011-10-27T04:53:16.031Z'});
+        return fancy.theResult;
+      },
+
+      'should not write to the actual appender': function (result) {
+        assert.isTrue(result.startCalled);
+        assert.equal(result.logged.length, 0);
+        assert.equal(result.emissions['ohno::log'].length, 2);
+        assert.isUndefined(result.ons['*::ohno::log']);
+      }
+    }
+  }
+}).exportTo(module);