Testing · Junior · Question 8 of 78

What is a regression?

✓Correct answer: A bug in functionality that used to work
2A test that is too slow
3A new feature added without tests

Explanation

A good habit: when fixing a bug, first write a test that reproduces it. The test fails, the fix makes it pass, and the bug can't silently come back.

Further reading

Martin Fowler: The Practical Test Pyramid ↗

Test yourself

Take the Testing · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.