On the other hand I've seen test suites where each test consisted of 98% boilerplate that got copy&pasted every single time. Depending on the tests setup, they

On the other hand I've seen test suites where each test consisted of 98% boilerplate that got copy&pasted every single time. Depending on the tests setup, they would mix and match hundredths of lines from other tests, which sometimes introduced subtle, hard to spot errors. There wasn't much magic and it was nightmare to read and maintain.