dont_trust_the_developer

# Developers are a tricksey bunch. Name some reasons why you shouldn't just trust the person who wrote the code.
# Name some mental pitfalls that you should watch out for when testing code.
# So then, why shouldn't we be satisfied with testing our own code?

When writing code, it is often hard to see the code from an unbiased perspective.
I can't know exactly what another person who is seeing this code for the first
time will think, or if they will be able to understand it. And I can't think of
everything that might go wrong either. I just spent time making it work a certian
way and have pidgeonholed myself into a certain way of thinking. It's much easier
to get some fresh eyes on the code than it is for me to try to make up for my own
biases.