A mock server is a server that is not a real server. It is just a fake server that is simulated to work as a real server so that we can test our APIs and check the response or errors. This server is set up in such a way that we get particular response for a particular request that we desire to see. A mock server behaves like a real server and uses fake APIs, of course, for testing and development purpose. There are a number of reasons for which we require mock servers. Along with the case given above, it is also required in today’s testing world. Such requirement is in Agile methodology which is recent and better than waterfall methodology. In this method, testing and development goes side by side. For this, a tester needs to have same requirement as the developer to work simultaneously. For which you need a mock server. In addition to this, few reasons are listed in the next section.
