Added testing

test.js

@@ -0,0 +1,35 @@
+var Mocha = require('mocha'),
+    fs = require('fs'),
+    path = require('path');
+
+var createServer = require('./src/app.js');
+var createMockServer = require('./test/mocks.js');
+
+// Instantiate a Mocha instance.
+var mocha = new Mocha();
+
+var testDir = './test/cases'
+
+// Add each .js file to the mocha instance
+fs.readdirSync(testDir).filter(function(file) {
+    // Only keep the .js files
+    return file.substr(-3) === '.js';
+
+}).forEach(function(file) {
+    mocha.addFile(
+        path.join(testDir, file)
+    );
+});
+
+var mockServer = createMockServer(() => {
+  console.log("Started mock HTTP Server");
+  var server = createServer(() => {
+    console.log("Started main HTTP server");
+    // Run the tests.
+    mocha.run(function(failures) {
+      mockServer.close();
+      server.close();
+      process.exitCode = failures ? 1 : 0;  // exit with non-zero status if there were failures
+    });
+  });
+});