> Tests are an investment, but once you've done them, every > time you r... | Hacker News

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aquark on Feb 20, 2011 | parent | context | favorite | on: Ask HN: Is TDD/BDD hampering your startup's agilit...

> Tests are an investment, but once you've done them, every > time you run them from that point on is free.

True, but they have their own maintenance cost. When features evolve in the future you have to pay to update the tests as well. Worthwhile, but something to bear in mind.

chromatic on Feb 20, 2011 [–]

When features evolve in the future you have to pay to update the tests as well.

Very true, but when features evolve in the future, you may have to pay the debugging costs if they evolve in ways you did not intend with regard to other features.

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