Replace test.h with google test (or equivalent) #28
Description
the biggest complaint that I have about this is that the current test code doesn't tell you what the value you did get was.
Ninja justifies this in an in-code comment saying that including the actual google test library can increase compile times by as much as 20%.
Considering that Ninja takes under a minute to compile (for me, at least), I think I'd rather have the real google test...