Testing. Testing. Testing.

I dropped this little pearl in my code the other day.

while (i < vec->len && vec->data[i] != value) ;

It is from a simple vector implementation’s remove method. Do you see any anything wrong with it? I did not for a while and oddly it behaved well. Too well actually. For a while I did not put more than one element in the vector, so this little loop never actually happened. The surprise came when there was two elements in it and I wanted to remove the second one.

My biggest mistake here is that I did not write unit tests for this, because I was confident enough I would not screw this up. Unfortunately my confidence was without merits.

Testing is always time well spent.