The testing of web applications that communicate with a web SERVICE can be broken down in two parts:

Testing of the Web Service in isolation. Each web service has one or more functions which can be TESTED by sending appropriate requests and ANALYZING the response and verifying correct data is returned in the response. We can use tools such as SoapUI to test a Soap Service or Rest CLIENT to test a RESTful web service.

Integration Testing of Web Service with the Front End. The integration testing is also important as it can highlight issues with data in the request and display of the response.

The reason for this separation is to be ABLE to identify issues in the web service much quicker and easier to debug.

The testing of web applications that communicate with a web service can be broken down in two parts:

Testing of the Web Service in isolation. Each web service has one or more functions which can be tested by sending appropriate requests and analyzing the response and verifying correct data is returned in the response. We can use tools such as SoapUI to test a Soap Service or Rest Client to test a RESTful web service.

Integration Testing of Web Service with the Front End. The integration testing is also important as it can highlight issues with data in the request and display of the response.

The reason for this separation is to be able to identify issues in the web service much quicker and easier to debug.