[humbledrone]

Hell no. Hacking together a crappy throwaway minimum viable product with no tests is one thing, but if this company is "quite successful" (as you say) it is probably past the time where they should have started writing tests.

In the even slightly long term, tests don't slow things down, they keep things fast. It is MUCH easier to change and maintain code with good tests. Think about it this way: when you write code, you damn well better be testing that it works as you write it. Why not test it with other code, and save that so that other people don't have to do it over again? Manual testing is slow, error prone, and very expensive. Better use it judiciously instead of making people track down stupid programming errors that could have been caught in 7 seconds with a decent unit test suite.

[kennethtilton]

Get over it. They are successful without TDD. It is extremely possible, and then one does not have to slave over a hundred lines of tests when one decides to write ten lines of code. TDD has its place, but it is a relatively small place (and then, yes, it is worth its weight in gold -- I do it often).