[Pyunit-interest] Fwd: Recursive assert_equals.

[Ori P. <or...@us...>]

Oops, corrected mailing list address.

---------- Forwarded message ----------
From: Ori Peleg <or...@us...>
Date: Dec 6, 2006 2:47 AM
Subject: Re: [Pyunit-interest] Recursive assert_equals.
To: "Desilets, Alain" <Ala...@nr...>
Cc: pyu...@li...


Doesn't the equality operator do what you want?
http://docs.python.org/ref/comparisons.html

As long as your classes implement __eq__ or __cmp__, assertEquals
should work fine.
(http://docs.python.org/ref/customization.html)

On 11/29/06, Desilets, Alain <Ala...@nr...> wrote:
> Is there a way to do a recursive assert_equals on a complex data structur=
e?
>
> For example, say I want to assert that two dictionary are "equal". The ke=
ys of the dictionary are strings, and the values are objects of type SomeCl=
ass, which, among other things, have an attrigute called some_attribute whi=
ch is of type SomeOtherClass.
>
> I want to write:
>
> Self.assert_equal_recusrsive(expected_dict, got_dict)
>
> And have the system do the following:
>
> - Make sure that expected_dict and got_dict are both of the same type (a =
dictionary in this case)
> - Make sure that they have the same string keys
> - For each string key, make sure that the associated objects are of the s=
ame type (SomeClass), have the same attributes with same values.
> - In particular for the some_attribute attribute, it would make sure that=
 the values are also of the same type (SomeOtherClass), and that they have =
the same attribute values pairs.
>
> Has this been written before? If not would it be doble (it seems to me it=
 should be).
>
> I know that in jUnit (Java version), this kind of recursive comparison is=
 supported to at least some extend. For example, if I compare two dictionna=
ry objects, the system will make sure that the keys are the same and the va=
lues too. But it doesn't go recursively into the attributes of objects AFAI=
K.
>
>
> ----
> Alain D=E9silets, MASc
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>
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