테스트 자동화

Benefits of automated Testing

1. Test your code frequently, in less time
2. Catch bugs before deploying
3. Deploy with confidence
4. Refactor with confidence
5. Focus more on the quality

• Refactoring means chaging the structure of the code without changing its behavior.

 

Types of tests

1. Unit Test : Tests a unit of an application without its external dependencies.
   Cheap to write , Execute fast, Don't give a lot of confidence
2. Integration Test : Tests the application with its external dependencies.
   Take longer to execute, Give more confidence
3. End-to-End Test : Drives an application through its UI.
   Give you the greatest confidence,  Very slow, Very brittle

 

 

 

With TDD you write your tests before writing the production code

 

Test-driven Development

1. Write a failing test.
2. Write teh simplest code to make the test pass.
3. Refactor if necessary. 

세 스텝을 반복해서 목적하는 코드를 완성하는것.

 

Benefits of TDD

1. Testable Source Code
2. Full Coverage by Tests.
3. Simpler Implementation.

 

 

Characteristics of good unit tests

1. First-class citizens
2. Clean,readable and maintainable
3. No logic
4. Isolated
5. Not too specific/general

What to test and what not to test

1. Language features
2. 3rd-party code

Naming and organising tests

 

• [MethodName]_[Scenario]_[ExpectedBehaviour]

Basic techniques

Writing reliable tests

 

https://github.com/YvesGingras/Course-UnitTestingForCSDevelopers