At this point, I'm not convinced that not testing necessarily leads to laziness.
In my job I deal with a fair amount of legacy code, and definitely find anecdotally that I work several times faster on new code, but that's because the legacy code is crap and the new code is clean and brilliant (just like all code written by yours truly). (Of course, the fact that the code is new and is being edited by the original author are the primary drivers, but I think my code quality is slightly better than my predecessors'.) Once the code is well-written, I don't think that adding tests would significantly improve my productivity. Having a test suite would give me confidence and save me time doing manual testing (no need to test features I haven't touched and am not worried about), but don't see it having a major impact on my development productivity per se.
I meant that laziness leads to not testing. And the "bullshit' that arises from not testing are the bugs and regressions that happen after you role out anything new that isn't completely self contained.
"Once the code is well-written, I don't think that adding tests would significantly improve my productivity"
Yeah, if you never touch that code again then it would not, I agree. I don't have many modules or classes that never change though. I suppose there might be other types of programming where that's not the case.
In my job I deal with a fair amount of legacy code, and definitely find anecdotally that I work several times faster on new code, but that's because the legacy code is crap and the new code is clean and brilliant (just like all code written by yours truly). (Of course, the fact that the code is new and is being edited by the original author are the primary drivers, but I think my code quality is slightly better than my predecessors'.) Once the code is well-written, I don't think that adding tests would significantly improve my productivity. Having a test suite would give me confidence and save me time doing manual testing (no need to test features I haven't touched and am not worried about), but don't see it having a major impact on my development productivity per se.