Wrap-up
Introduction to Testing in Java
Maria Milusheva
Senior Software Engineer
Chapter 1 Recap
Chapter 1.1:
- Introduced the concept of software testing
- Discussed the benefits of testing
- Reviewed some edge cases we should always test
Chapter 1.2:
- Introduced testing with JUnit
- Learned about JUnit 5 syntax like
@Test - Practiced
assertEquals()
Chapter 1.3:
- Learned to define unit testing
- Studied additional assert statements:
assertTrue(),assertInstanceOf(),assertNull()
Chapter 2 Recap
Chapter 2.1:
- Learned about software dependencies
- Defined integration testing as testing how components work together
- Practiced using the European Central Bank rates
Chapter 2.2:
- Discovered mocks as a way to control test conditions
- Studied Mockito and its syntax:
mock(),when(),.thenReturn()
Chapter 2.3:
- Learned
verify()to track mock interactions - Practiced using database examples
Chapter 3 Recap
Chapter 3.1:
- Used
@ParameterizedTestto shorten test classes and reduce repetition - Practiced
@ValueSourceand@CsvSource
Chapter 3.2:
- Discovered ways to pass more complex arguments to tests using
@MethodSourceandArguments.of() - Encountered the
@BeforeEachannotation
Chapter 3.3:
- Practiced thinking with tests first
- Defined Test-Driven Development as the practice of writing tests before implementation
- Learned to fix bugs with TDD
Further learning:
Interesting talks:
- The Joy of Testing by Victor Rentea - one of the most fun talks on testing out there
- Are Your Tests Slowing You Down? by Trisha Gee
- Test Driven Design Insights by Victor Rentea
Advanced testing study:
- Property-based testing with jqwik - a new testing approach + a library that finds edge cases for you.
- Behavior-Driven Development - like TDD, but bigger and more advanced.
- Intro to performance testing - performance is important for any Java application.
Congratulations!
Introduction to Testing in Java
