UnitTesting-MSTest-Examples

What is Unit Testing?

It tests behavior of a function/method by writing another piece of code.

Why Unit Tests?

Normally, software projects are intended to run for long-term, at least for a minimum of five years. During this period, maintaining the application is very crucial. Any change request received might impact the other functionality of the application. So, before deploying the change in the production, a lot of regression testing has to be done. This consumes a lot of tester’s time.

Read more on Importance Of Unit Testing In Software Development

Benefits of Unit Tests

1. Reduce the Number of Bugs
2. Easily Change and Refactor Code
3. Automated Tests
4. Improve Code design

Unit Tests frameworks in C#

1. MS Test
2. NUnit

AAA - Unit Tests Pattern

1. Arrange all the necessary preconditions and inputs.

   // Arrange 
   Employee employee = new Employee();	
   string firstName = "Peter";
   string lastName = "Bravo";
   string expected = "Peter Bravo";
   string actual;
   

2. Act on the object or method under test.

   // Act  
   actual = employee.GetName(firstName, lastName);
   

3. Assert that the expected results have occurred.

   // Assert  
   Assert.AreEqual(expected, actual);
   

Result

Let us know!

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License

MIT License

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