Just to shamelessly plug one of my old projects, I did something like this at a German industrial engineering firm - they wanted us to rewrite a huge base of old tests written in TCL into C#.
It was supposed to take 6 months for 12 people.
Using an AST parser I wrote a program in two weeks, that converted like half the tests flawlessly, with about another third needing minor massaging, and the rest having to be done by hand (I could've done better, by handling more corner cases, but I kinda gave up once I hit diminishing returns ).
Although it helped a bunch that most tests were brain dead simple.
Reaction was mixed - the newly appointed manager was kinda fuming that his first project's glory was stolen from him by an Assi, and the guys under him missed out on half a year of leisuirely work.
I left a month after that, but what I heard is that they decided to pretend that my solution didn't exist on the management level, and the devs just ended up manually copypasting the output of my tool, and did a days planned work in 20 minutes, with the whole thing taking 6 months as planned.
It was supposed to take 6 months for 12 people.
Using an AST parser I wrote a program in two weeks, that converted like half the tests flawlessly, with about another third needing minor massaging, and the rest having to be done by hand (I could've done better, by handling more corner cases, but I kinda gave up once I hit diminishing returns ).
Although it helped a bunch that most tests were brain dead simple.
Reaction was mixed - the newly appointed manager was kinda fuming that his first project's glory was stolen from him by an Assi, and the guys under him missed out on half a year of leisuirely work.
I left a month after that, but what I heard is that they decided to pretend that my solution didn't exist on the management level, and the devs just ended up manually copypasting the output of my tool, and did a days planned work in 20 minutes, with the whole thing taking 6 months as planned.