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What has the number of lines got to do with the unit tests?

That functionality had to go somewhere, no matter how badly written it was.

Unit tests don't magically save you from code bloat.

Also I work on 3 code bases written by other people with zero unit tests, I refactor them all the time. Other developers have refactored them. Not having unit test is not a big barrier to refactoring.

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> Unit tests don't magically save you from code bloat.

No, but the idea is that such a method would be hard to test, considering it (presumably) does so much. So in order to test it properly, you are encouraged to break it up into smaller methods. (Whether somebody actually does that is a different story, of course...)

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