From: Brian Candler <B.Candler@...>
Date: 2008-08-27T18:31:59+09:00
Subject: Re: unit testing with class and floats

> expected = simpleclass.new(105.234)
> 
> assert_equal(expected, somefunction(blahblah))

Try: assert_in_delta(expected, somefunction(blahblah), 0.001)

(Two floats which look the same when printed may actually be slightly
different, due to the inexact nature of the internal representation)