Add restart route for atomicity

src/routes/test/apps-test.js

@@ -1570,6 +1570,34 @@ describe('App API', function () {
                     });
             });
         });
+
+        it('can restart app', function (done) {
+            superagent.post(SERVER_URL + '/api/v1/apps/' + APP_ID + '/restart')
+                .query({ access_token: token })
+                .end(function (err, res) {
+                    expect(res.statusCode).to.equal(202);
+                    taskId = res.body.taskId;
+                    done();
+                });
+        });
+
+        it('wait for app to restart', function (done) {
+            waitForTask(taskId, function () { setTimeout(done, 12000); }); // give app 12 seconds (to die and start)
+        });
+
+        it('did restart the app', function (done) {
+            apps.get(APP_ID, function (error, app) {
+                if (error) return done(error);
+
+                superagent.get('http://localhost:' + app.httpPort + APP_MANIFEST.healthCheckPath)
+                    .end(function (err, res) {
+                        if (res && res.statusCode === 200) return done();
+                        done(new Error('app is not running'));
+                    });
+            });
+        });
+
+
     });
 
     describe('uninstall', function () {