Why should you write tests?

Modified on 3rd Jun, 2019 Tom Hazledine

Ed doesn't have much experience with automated testing for his code. This week he asks Tom about the principles behind testing, and some of the benefits and downsides. Does Tom think Ed should learn how to write tests ASAP? What kind of tests does he find are the most useful? And are there any downsides to writing tests for your code? Find out in this week's inspiring instalment of A Question of Code.

• TalkPython podcast
• Classic Computer Science Problems in Python, book by David Kopec
• Boundaries, talk by Gary Bernhardt
• Jest: testing framework for JavaScript
• Test & Code podcast

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