Testing the Fitbit heart rate monitoring system: Part 2

In this post, we outline a cheap and creative way to perform repeatable and controlled tests on the Fitbit heart rate monitor. Our test has a reasonable degree of accuracy. We hope it helps the Fitbit developers rapidly test their prototypes. To be clear: thorough, accurate and precise testing is needed in the later stages of development. The test outlined […]

WebSocket Error – Connection is already closed.

While trying to send a WebSocket transaction, I hit the following error Connection is already closed. I received this error when working on an application that involved a WebSocket connection. The Websocket handshake between the client and server was successful. After that I was able to send data to server using ws.send(“request_data_1”). I had no trouble receiving the data using […]

WebSocket testing

A WebSocket is a standard protocol for two-way data transfer between a client and server. It is supported by all modern browsers. Why this post? My know-how of WebSocket connections was very limited. When I had to test an application which involved a WebSocket connection, I couldn’t find much information on how to go about testing it. It took me […]

An analogy to understand web APIs

I noticed many testers with no knowledge of web APIs do not have an easy way to start learning about them. Most tutorials directly dive into the technical details of how to use APIs as part of writing automated checks. I wanted to provide an easy analogy for APIs that will set you up to explore this topic further. DISCLAIMER: […]