Add healtcheck unit test

unleash-server/test/routers.test.js

@@ -0,0 +1,37 @@
+var request = require('supertest'),
+    mockery = require('mockery');
+
+describe('The routes', function () {
+    var server;
+
+    before(function () {
+        mockery.enable({
+            warnOnReplace: false,
+            warnOnUnregistered: false,
+            useCleanCache: true
+        });
+
+        mockery.registerSubstitute('./eventDb', '../test/eventDbMock');
+        mockery.registerSubstitute('./featureDb', '../test/featureDbMock');
+
+        server = require('../server');
+        request = request('http://localhost:' + server.app.get('port'));
+    });
+
+    after(function () {
+        mockery.disable();
+        mockery.deregisterAll();
+        server.server.close();
+    });
+
+    describe('healthcheck', function () {
+
+        it('returns health good', function (done) {
+            request.get('/health')
+            .expect('Content-Type', /json/)
+            .expect(200)
+            .expect('{"health":"GOOD"}', done);
+        });
+    });
+
+});