added sample app for client-server authentication

server/tests/unit/controllers/auth.spec.js

@@ -0,0 +1,102 @@
+var expect = require('chai').expect
+    , sinon = require('sinon')
+    , AuthCtrl = require('../../../controllers/auth')
+    , User = require('../../../models/User');
+
+describe('Auth controller Unit Tests - ', function() {
+
+    var req = { }
+        , res = {}
+        , next = {}
+        , sandbox = sinon.sandbox.create();
+
+    beforeEach(function() {
+
+    });
+
+    afterEach(function() {
+        sandbox.restore();
+    });
+
+    describe('register()', function() {
+
+        beforeEach(function() {
+            req.body = {
+                username: "user",
+                password: "pass",
+                role: 1
+            };
+        });
+
+        it('should return a 400 when user validation fails', function(done) {
+
+            var userValidateStub = sandbox.stub(User, 'validate').throws();
+            res.send = function(httpStatus) {
+                expect(httpStatus).to.equal(400);
+                done();
+            };
+
+            AuthCtrl.register(req, res, next);
+        });
+
+        it('should return a 403 when UserAlreadyExists error is returned from User.addUser()', function(done) {
+            var userValidateStub = sandbox.stub(User, 'validate').returns();
+            var userAddUserStub = sandbox.stub(User, 'addUser', function(username, password, role, callback) {
+                callback('UserAlreadyExists');
+            });
+
+            res.send = function(httpStatus) {
+                expect(httpStatus).to.equal(403);
+                done();
+            };
+
+            AuthCtrl.register(req, res, next);
+        });
+
+        it('should return a 500 if error other than UserAlreadyExists is returned from User.addUser()', function(done) {
+            var userValidateStub = sandbox.stub(User, 'validate').returns();
+            var userAddUserStub = sandbox.stub(User, 'addUser', function(username, password, role, callback) {
+                callback('SomeError');
+            });
+
+            res.send = function(httpStatus) {
+                expect(httpStatus).to.equal(500);
+                done();
+            };
+
+            AuthCtrl.register(req, res, next);
+        });
+
+        it('should call next() with an error argument if req.logIn() returns error', function(done) {
+            var userValidateStub = sandbox.stub(User, 'validate').returns();
+            var userAddUserStub = sandbox.stub(User, 'addUser', function(username, password, role, callback) {
+                callback(null, req.body);
+            });
+            req.logIn = function(user, callback) { return callback('SomeError'); };
+
+            next = function(err) {
+                expect(err).to.exist;
+                done();
+            };
+
+            AuthCtrl.register(req, res, next);
+        });
+
+        it('should return a 200 with a username and role in the response body', function(done) {
+            var userValidateStub = sandbox.stub(User, 'validate').returns();
+            var userAddUserStub = sandbox.stub(User, 'addUser', function(username, password, role, callback) {
+                callback(null, req.body);
+            });
+            req.logIn = function(user, callback) { return callback(null); };
+
+            res.json = function(httpStatus, user) {
+                expect(httpStatus).to.equal(200);
+                expect(user.username).to.exist;
+                expect(user.role).to.exist;
+                done();
+            };
+
+            AuthCtrl.register(req, res, next);
+        });
+    });
+});