[rspec-users] != again

David Chelimsky dchelimsky at gmail.com
Sun Jun 1 16:55:03 EDT 2008


On Jun 1, 2008, at 12:17 PM, Matthias Hennemeyer wrote:

> Hey!
>
> I have implemented a quick solution for the should != .. , should ! 
> ~ ... 'problem'.
> It uses source code inspection (I think it's the only way) and i've  
> done some
> benchmarking to see if it's really that slow.
>
> A direct comparison of
> running '1.should == 1'
> with the unmodified rspec source against the rspec-version with  
> source inspect
> shows that the latter is 7 times slower ... :(
>
> But benchmarks with '1.should == 1' inside a real example file are   
> showing 'only'
> an overall speed decrease of 15% to 50%. That is still bad but  
> having lots of people
> consider the passing of '1.should != 1'  an rspec bug is bad too.

RSpec is already getting dinged for being slower than test/unit.  
Making it run any slower than it already does is a deal breaker for me.

> Here is the benchmarking script:
> http://pastie.caboo.se/206853
>
> And the code is at branch 'inspect' in:
> git://github.com/mhennemeyer/rspec
>
> There are examples for should and should_not != and !~ and i will
> definitely work on performance if you not totally reject this whole  
> idea.

If you can get the performance up to or better than current, I'm all  
for it.

Cheers,
David


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