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Assertj
- 1. Testing with AssertJ An opensource, community-driven library used for writing fluent and rich assertions in Java tests.
- 3. Benefits of using AssertJ
- 7. Soft Assertions Soft assertions allow you to perform multiple checks and see results for all of them.
- 8. Conversion tools Works with: JUnit 3 JUnit 4 Junit 5
- 9. Assumptions Assumptions provide support for conditional test execution. If the assumptions are met the test is executed normally, if they don’t the test is aborted and marked as ignored.
- 10. Assertions Generator Creates assertions specific to your own classes. It's a way to apply Domain Driven Design ubiquitous language in tests. Limitations: No support for generics; 99% correct code. https://gitlab.nonprod.dwpcloud.uk/simone.di-cola/assertj-generator
- 11. Remember: analytical skills are more helpful than tools!
Editor's Notes
- It’s up to you which syntax you like most, but for me, AssertJ feels more natural and easy to read.
- A standard way would require having 4 assertions one by one. Then, we would only see the first failed assertion about the surname while the issue in the email would be hidden until the surname would be fixed. Such issues are often reproducible in real life when regression testing complicated applications — when some bugs are caught quickly during the first test run, but many other bugs can be missed and found only later, because tests can not go further until the failed step has been fixed. But with soft assertions, you would see something like this:
- http://joel-costigliola.github.io/assertj/assertj-core-converting-junit-assertions-to-assertj.html http://joel-costigliola.github.io/assertj/assertj-core-converting-junit5-assertions-to-assertj.html