diff --git a/package.json b/package.json
index 484d138..90e236a 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "author": "Jack Foltz",
   "license": "WTFPL",
   "scripts": {
-    "test": "echo No tests implemented."
+    "test": "mocha"
   },
   "repository": {
     "type": "git",
diff --git a/test/user.js b/test/user.js
new file mode 100644
index 0000000..ae3fc46
--- /dev/null
+++ b/test/user.js
@@ -0,0 +1,137 @@
+process.env.NODE_ENV = 'test';
+
+var async = require('async');
+
+var mongoose = require('mongoose');
+var User = require('../app/models/User.js');
+var Invite = require('../app/models/Invite.js');
+
+var chai = require('chai');
+var http = require('chai-http');
+var should = chai.should();
+var app = require('../server');
+var server = app.server;
+var db = app.db;
+
+chai.use(http);
+
+before(function (done) {
+    async.parallel([
+        function (cb) {
+            db.once('open', cb);
+        },
+        function (cb) {
+            User.remove({}, function (err) {
+                cb(err);
+            });
+        },
+        function (cb) {
+            Invite.remove({}, function (err) {
+                cb(err);
+            });
+        },
+        function (cb) {
+            var inv = new Invite();
+            inv.code = 'TestCode1';
+            inv.scope = ['test.perm'];
+            inv.save(function (err) {
+                cb(err);
+            });
+        },
+        function (cb) {
+            var inv = new Invite();
+            inv.code = 'TestCode2';
+            inv.scope = ['test.perm', 'file.upload'];
+            inv.save(function (err) {
+                cb(err);
+            });
+        }
+    ], function (err) {
+        if (err) console.log(err);
+        done();
+    });
+});
+
+describe('Users', function () {
+    describe('/POST register', function () {
+        it('SHOULD register valid user, valid invite', function (done) {
+            var user = {
+                username: 'TestUser',
+                password: 'TestPassword',
+                invite: 'TestCode1'
+            };
+
+            chai.request(server)
+                .post('/api/auth/register')
+                .send(user)
+                .end(function (err, res) {
+                    res.should.have.status(200);
+                    res.body.should.be.a('object');
+                    res.body.should.have.property('token');
+                    done();
+                });
+        });
+
+        it('SHOULD NOT register invalid user, valid invite', function (done) {
+            var user = {
+                username: 'TestUser',
+                password: 'TestPassword',
+                invite: 'TestCode2'
+            };
+
+            chai.request(server)
+                .post('/api/auth/register')
+                .send(user)
+                .end(function (err, res) {
+                    res.should.have.status(401);
+                    res.body.should.be.a('object');
+                    res.body.should.have.property('message').eql('Username in use.');
+                    done();
+                });
+        });
+
+        it('SHOULD NOT register valid user, nonexistant invite', function(done) {
+            var user = {
+                username: 'TestUser2',
+                password: 'TestPassword',
+                invite: 'bogus'
+            };
+
+            chai.request(server)
+                .post('/api/auth/register')
+                .send(user)
+                .end(function(err, res) {
+                    res.should.have.a.status(401);
+                    res.body.should.be.a('object');
+                    res.body.should.have.property('message').eql('Invalid invite code.');
+                    done();
+                });
+        });
+
+        it('SHOULD NOT register valid user, used invite', function(done) {
+            var user = {
+                username: 'TestUser2',
+                password: 'TestPassword',
+                invite: 'TestCode1'
+            };
+
+            chai.request(server)
+                .post('/api/auth/register')
+                .send(user)
+                .end(function(err, res) {
+                    res.should.have.a.status(401);
+                    res.body.should.be.a('object');
+                    res.body.should.have.property('message').eql('Invalid invite code.');
+                    done();
+                });
+        });
+
+        //TODO: Make sure expired invites don't work
+    });
+});
+
+after(function () {
+    server.close(function () {
+        process.exit();
+    });
+});