Test
====

Prime tests, and set up our components and some basic content

    >>> from plonerelations.ATField import tests
    >>> tests.base_setup(portal)
    >>> ob1 = portal['ob1']
    >>> ob2 = portal['ob2']
    >>> ob3 = portal['ob3']
    >>> ob4 = portal['ob4']
    >>> ob5 = portal['ob5']    

Import fields, create instance of it, make it multi valued

    >>> from plonerelations.ATField.ploneRelationsATField import PloneRelationsATField
    >>> multiValueATField = PloneRelationsATField ()
    >>> multiValueATField.multiValued = True
    >>> multiValueATField.relationship = 'test multi valued relationship'
    
Make a single value one, for good measure

    >>> singleValueATField = PloneRelationsATField ()
    >>> singleValueATField.multiValued = False
    >>> singleValueATField.relationship = 'test single relationship'

Create an Interface   

    >>> from zope.interface import Interface
    >>> class IMyInterface (Interface):
    ...     pass
    
set relationship_interface on ATFields

    >>> multiValueATField.relationship_interface = IMyInterface
    >>> singleValueATField.relationship_interface = IMyInterface

make multi relationship from ob1 to objs 2 and 3, and a single relathionship from ob4 to ob5    
    
    >>> singleValueATField.set ( ob4, ob5 )
    >>> multiValueATField.set ( ob1, [ob2,ob3] )

test if get method returns right objects. Multi returns a list

    >>> list (multiValueATField.get( ob1 ))
    [<Demo ob2>, <Demo ob3>]

    >>> list (multiValueATField.getRaw( ob1, aslist=False))
    ['ob2', 'ob3']
    >>> list (multiValueATField.getRaw( ob1, aslist=True ))
    ['ob2', 'ob3']

sinlge returns an object

    >>> singleValueATField.get ( ob4 )
    <Demo ob5>

    >>> singleValueATField.getRaw( ob4, aslist=False )
    'ob5'

    >>> singleValueATField.getRaw( ob4, aslist=True )
    ['ob5']

double check if plone.app.interface returns the same    
    
    >>> from plone.app.relations import interfaces
    >>> multiValueSource = interfaces.IRelationshipSource(ob1)
    >>> singleValueSource = interfaces.IRelationshipSource(ob4)
    >>> multiValueRelationships = list(multiValueSource.getRelationships())
    >>> singleValueRelationship = list(singleValueSource.getRelationships())
    >>> multiValueRelationships
    [<Relationship 'test multi valued relationship' from (<Demo ob1>,) to (<Demo ob2>,)>, <Relationship 'test multi valued relationship' from (<Demo ob1>,) to (<Demo ob3>,)>]
    >>> singleValueRelationship
    [<Relationship 'test single relationship' from (<Demo ob4>,) to (<Demo ob5>,)>]

check if relathionshiops provide Interfaces
    
    >>> IMyInterface.providedBy (singleValueRelationship[0])
    True
    >>> IMyInterface.providedBy (multiValueRelationships[0])
    True


check if it deletes

    >>> multiValueATField.set ( ob1, [ob2,ob5] )
    >>> list(multiValueSource.getRelationships())
    [<Relationship 'test multi valued relationship' from (<Demo ob1>,) to (<Demo ob2>,)>, <Relationship 'test multi valued relationship' from (<Demo ob1>,) to (<Demo ob5>,)>]
    >>> singleValueATField.set ( ob4, ob1 )
    >>> singleValueRelationship = list(singleValueSource.getRelationships())
    >>> singleValueRelationship
    [<Relationship 'test single relationship' from (<Demo ob4>,) to (<Demo ob1>,)>]

    
