[Bioperl-l] Testing BioPerl objects for equality
birney at ebi.ac.uk
Thu Jan 29 04:38:51 EST 2004
On Thu, 29 Jan 2004, Peter van Heusden wrote:
> I've got an idea for testing where I'd like to 'round-trip' through
> SeqIO: read in from a file on disk, write out again with write_seq() and
> then read in the file written by write_seq() and compare the two
> sequence objects. If they aren't equal, it means we've got a problem.
That sounds like a great idea... we've always had problems with diff'ing
the files because of whitespace issues, but diff'ing the objects sounds
> To make this work requires some kind of equals() method on Seq,
> SeqFeature, etc. This doesn't seem to be there at the moment - or am I
> missing something? Maybe there should probably be some kind of
> Bio::ComparableI interface which provides an equals() abstract method.
I would be ok with this, but I do note in passing that this precisely the
sort of minature abstract interface that really has newbie's scratching
their heads -
- why did they do this?
- is this interface important?
- does this mean I can use '=' signs with objects?
- do I need to make on of these to compare two objects?
In the documentation to the interface can you give some reassurance that
this is really just a little aide-memoire for the developers, and it is
not that important or crucial, and certainly noone should be creating one
of these beasts directly :)
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