Dummy, Fake, Stub, and Mock

Mock is a generic term that covers a family of stand-in objects for use in unit testing. Dummy: Dummy objects are simple mocks. Generally dummy objects are stands for an external resource. When a method is invoked they usually return…

Mocking the objects

During writing software we always try to limit the dependencies. Therefore in order to form a greater whole our components must be coupled each other. These couplings create dependencies within the application. Application can be also dependent on some external…

An Introduction to NUnit Framework

Most unit tests are writing by following a very simple pattern as follows: +. Perform some activity to set up your test. +. Execute your test. +. Verify its result. +. If necessary, reset your environment. Test methods must reside…

Others types of Tests

So far we’re discussed about unit testing and also shown an example of Unit Testing. But unit testing is not only tests that are important to software development. By unit test we only checks that classes, methods and services meet…

Quick Example of TDD using NUnit

Following example develop a feature for system using TDD. The feature will count occurrences of a character in a string. @. Now create a solution and named it FirstTDDExample. @. Add new Class Library project and name it “FirstTDDExample” @.…

Test driven Development

According to Wikipedia: Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: first the developer writes an (initially failing) automated test case that defines a desired improvement or new function,…

Test First Development

Test first development is a development style where write unit tests before writing the production code. Simple steps of Test First Development: Simple steps for Test First Developments are +. Write the specification +. Write the tests to the specification…

Unit Testing Frameworks

There are a rich collection of unit testing framework exists. In Wikipedia we can see their unit testing frameworks listed for just about any language or platform.There are a rich collection of unit testing framework exists. In Wikipedia we can…

Unit Testing New Code vs. Existing Code

Testing the Greenfield code is far easier than testing the Brownfield code or legacy code. The main reason is that during the code of Brownfield application or legacy code we don’t consider about testability. So the class structure in the…

Unit Testing

Unit Test: A unit test is a test that designed confirms the functionality of a small unit of work in a large system i.e. check the functionality of a method of that held inside a class and ensures that the…