Type of Tests
- Unit
- Integration
- End-to-End
Unit test
Tests a unit of an application without its external dependencies
- Cheap to write
- Execute fast
- Don’t give a lot of confidence
Integration Test
Tests the application with its external dependencies
- Take longer to execute
- Give more confidence
End to End Test
Drives an application through its UI
- Give you the greatest confidence
- very slow
- very brittle
Testing Frameworks
- NUnit
- MSTest
(embed in VisualStudio) - xUnit
All of the Testing Frameworks have:
- Library
- Test runner
Good pracitce for naming the TestingMetod:
FunctionName_Condition_ExpectReturn
Inside every UnitTest with triple A
- Arrange
- Act
- Assert
Test-driven Development (TDD
- write a failing test
- Write the simplest code to make the test pass.
- Refactor if necessary.
Benefits of TDD
- Testable Source Code
- Full Coverage by Tests
- Simpler Implementation