[Zope-dev] zope.component: calling an Interface and calling queryAdapter give differing results

[Chris Withers]

Tres Seaver wrote:
>> I guess it must be, since calling an interface already does some adaptation.
> 
> No, there is no dependency:  zope.interface defines a hook point that
> zope.component uses.  In the absence of zope.component, zope.interface
> uses a default implementation.

That sound pretty icky. What does this implementation do? Would a 
similar implementation be needed for the 'adapt' method or do we just 
raise a ComponentLookupError in the default implementation?

How do we test this different type of behaviour?
How do we test that zope.component provides the right hooks and that 
they get called correctly?

>> Can anyone else confirm this and give me a hint as to where the tests 
>> and code should go?
> 
> Tests likely belong in 'zope.interface.tests.test_adapter'.

OK.

cheers,

Chris

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