Unit Test

Demo: Unit Testing in Visual Studio (C#)


In this post, a demonstration on how to perform unit testing in Microsoft Visual Studio is covered. The demo is structured as follows:

  • create a console app with accompanying c sharp classes, and
  • perform unit testing on the methods used in the created classes.

In writing a program, implementing unit testing is a key step. The unit test project can be thought of as a document which can be used to understand the functionality and expected outcomes of the code. It is good practice to test the methods used in a program to check that the program delivers the expected results, and in performing the tests errors in the code can be picked up and corrected.

It often occurs that in the production process, a program needs to be extended. In extending the program, the results from one method should not alter the functioning/outcome of other methods. When unit testing is in place, errors can easily be picked up if it were the case that adding new code altered the outcome of existing working code. In this way, the existing working code is validated again when new code is added to the project. Using unit testing therefore serves as an important quality check of a program in the production process. Continue reading

Tapestry part VI - Testing a WEB API


In this blog we will show how a WEB API created using Tapestry can be tested. Testing a web service is not straight forward as the PageTester, the default way of testing in Tapestry, doesn't allow for testing API. To overcome this difficulty we must start a Jetty server with custom/test web.xml. The test web.xml allows us to control the construction of objects. In this example we show how a mock service object can be inserted for testing, while using the full implementation for production.

This blog is part of a series of blogs on Tapestry that explains how to build a "simple" hello world example html page and expose the functionality of the page(s) via a WEB API. In a previous blog we showed how to setup a web API that responses in either XML or JSON. If you haven't read it yet, it's probably a good idea to have a look at this blog first before proceeding.

This blog picks things up from another previous blog in the series on testing page. The basic of testing a webpage generated with Tapestry are explained there. In this blog we will build on the code previously created.


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