From: Eric Hodel <drbrain@...7.net>
Date: 2008-04-15T18:16:27+09:00
Subject: Re: change usage of pp in Test::Unit assertions

On Apr 13, 2008, at 10:03 AM, Jano Svitok wrote:
> On Sun, Apr 13, 2008 at 5:15 AM,  <mmalaidini@gmail.com> wrote:
>> Hi all.
>>
>> I have some Test::Unit testcases that deal with Date and DateTime.  
>> If,
>> for whatever reason, I have a failing assert_equal on either Date or
>> DateTime, the resulting message is quite difficult to read: the  
>> reason
>> obviously is that pp dumps the content of the object, it doesn't rely
>> on to_s or other more readable ways.
>>
>> Is there any way to change this behaviour and make assert_equal print
>> Date.to_s and DateTime.to_s when the comparison fail?
>
> You have two possibilities:
>
> 1. set Test::Unit::Assertions.use_pp to false, thus using  
> Date#inspect, or
> 2. create your own assertion that will use to_s. See documentation for
> Test::Unit::Assertions.
> (the easiest way would be to copy the code for assert_equal from
> assertions.rb and change the first line with build_message)

3. create a Date#pretty_print and DateTime#pretty_print method.