diff --git a/test/acceptance/cache_validator.js b/test/acceptance/cache_validator.js
new file mode 100644
index 00000000..6e39dd8a
--- /dev/null
+++ b/test/acceptance/cache_validator.js
@@ -0,0 +1,35 @@
+var assert      = require('assert');
+var net = require('net');
+require(__dirname + '/../test_helper');
+var CacheValidator = require(__dirname + '/../../lib/cartodb/cache_validator');
+var tests = module.exports = {};
+
+function VarnishEmu(on_cmd_recieved) {
+    var self = this;
+    var welcome_msg = 'hi, im a varnish emu, right?';
+
+    self.commands_recieved = [];
+
+    var server = net.createServer(function (socket) {
+      var command = '';
+      socket.write("200 " + welcome_msg.length + "\n");
+      socket.write(welcome_msg);
+      socket.on('data', function(data) {
+        self.commands_recieved.push(data);
+        on_cmd_recieved && on_cmd_recieved(self.commands_recieved);
+        socket.write('200 0\n');
+      });
+    });
+    server.listen(1337, "127.0.0.1");
+}
+
+tests['working'] = function() { assert.ok(true); };
+
+tests['should call purge on varnish when invalidate database'] = function() {
+    var varnish = new VarnishEmu(function(cmds) {
+        assert.ok(cmds.length == 1);
+        assert.equal('purge obj.http.X-Cache-Channel == test_cache\n', cmds[0]);
+    });
+    CacheValidator.init('localhost', 1337);
+    CacheValidator.invalidate_db('test_cache');
+}