Unit Testing With Console Application

Introduction

A Unit Test is a part of software development that is done by the development team at the time of development. Basically it is used to test the smallest unit of code, like methods, properties, classes and assemblies also. Where the smallest unit of code is known as a unit.

Good news for us is that Microsoft announced a new feature of unit testing with Visual Studio 2015 Preview at the day #vsconnect, in other words Smart Unit Test. When we apply a smart unit test, we can easily identify which unit of tests are not executing depending on our expectation and we can add some necessary code to fix that problem.

In other words, we can say that "Smart Unit Test" is an enhanced feature of Visual Studio 2015 that assists us in finding bugs inside the test units. Basically it generates a suite of tests for every possible code path in your .NET code. It will automatically evolve the test suit as your code under test evolves. But we will discuss it in a future article. We are now going to do the unit test in Visual Studio 2013 with a Console Application. Before starting the project for Unit Testing, let's see some basic concept of unit testing.

Purpose: The main purpose of unit testing is to take the small unit of code from the project, separate it from the code and check whether or not it behaves exactly the same as we expect. So we first do the unit test with each unit of test before integrating them into the project's modules.

Use the following procedure to do the Unit Test with a Console Application.

Step 1: Open Visual Studio 2013.

Step 2: Create a new project in Visual Studio 2013.

Seelct "FILE" -> "New" -> "Project...".

Step 3: Select the project language as C# and select a Console Application and enter the name of the project as Mathematics (Project Name).

Step 4: Now write the following method that will identify the type of triangle. Like the triangle may either be Equilateral, Isosceles or Scalene. Before writing the following methods in your application, first the replace the name of class as Trigonometric in the place of Program (default class name in Console Application) and define the following variables as global variables.

Step 5: Now write a method with the name TrianlgeSidesInput(...) with the three arguments Side1, Side2 and Side3. For more details see the following program code.