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I am using XCode for test driven development in C++.
It occurred to me that I would save a lot of time if XCode could automatically build and run my tests every time I save.
Is there any way to do this (by scripting XCode or otherwise)? Google doesn’t seem to have a clue.
I have seen this workflow when using interpreted languages and it really does increase productivity.
Let’s assume that my machine is fast enough to build and run tests in a few seconds.
automatically? no. you could write your own fsevent monitor agent. when a change occurs that requires a rebuild, do something appropriate.
the easy way around this: you can configure xcode to save when building. you don’t need save explicitly, just hit run with this preference enabled. in that sense, hitting run is as simple as hitting save, and that performs a save, build and run in the correct order when you hit run. You may want an intermediate target or scheme for this.
another option would be to use a vc commit as a trigger for a build and run of your tests (saw your comment: use branches).