def test(self):
field = Text(title=u"Foo thing")
class I(Interface):
getFoo, setFoo = accessors(field)
class Bad(object):
implements(I)
class Good(object):
implements(I)
def __init__(self):
self.set = 0
def getFoo(self):
return u"foo"
def setFoo(self, v):
self.set += 1
names = I.names()
names.sort()
self.assertEqual(names, ['getFoo', 'setFoo'])
self.assertEqual(I['getFoo'].field, field)
self.assertEqual(I['getFoo'].__name__, 'getFoo')
self.assertEqual(I['getFoo'].__doc__, u'get Foo thing')
self.assertEqual(I['getFoo'].__class__, FieldReadAccessor)
self.assertEqual(I['getFoo'].writer, I['setFoo'])
# test some field attrs
for attr in ('title', 'description', 'readonly'):
self.assertEqual(getattr(I['getFoo'], attr), getattr(field, attr))
self.assert_(IText.providedBy(I['getFoo']))
self.assert_(IMethod.providedBy(I['getFoo']))
self.assert_(IMethod.providedBy(I['setFoo']))
self.assertEqual(I['setFoo'].field, field)
self.assertEqual(I['setFoo'].__name__, 'setFoo')
self.assertEqual(I['setFoo'].__doc__, u'set Foo thing')
self.assertEqual(I['setFoo'].__class__, FieldWriteAccessor)
self.assertRaises(Exception, verifyClass, I, Bad)
self.assertRaises(Exception, verifyObject, I, Bad())
self.assertEquals(I['getFoo'].query(Bad(), 42), 42)
self.assertRaises(AttributeError, I['getFoo'].get, Bad())
verifyClass(I, Good)
verifyObject(I, Good())
self.assertEquals(I['getFoo'].query(Good(), 42), u'foo')
self.assertEquals(I['getFoo'].get(Good()), u'foo')
instance = Good()
I['getFoo'].set(instance, u'whatever')
self.assertEquals(instance.set, 1)
def testNotImplemented(self):
class C(object): pass
class I(Interface): pass
self.assertRaises(DoesNotImplement, verifyClass, I, C)
classImplements(C, I)
verifyClass(I, C)
def testMissingAttr(self):
class I(Interface):
def f(): pass
class C(object):
implements(I)
self.assertRaises(BrokenImplementation, verifyClass, I, C)
C.f=lambda self: None
verifyClass(I, C)
def testMethodForAttr(self):
class IFoo(Interface):
foo = Attribute("The foo Attribute")
class Foo:
implements(IFoo)
def foo(self):
pass
verifyClass(IFoo, Foo)
def testWrongArgs(self):
class I(Interface):
def f(a): pass
class C(object):
def f(self, b): pass
implements(I)
# We no longer require names to match.
#self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a: None
verifyClass(I, C)
C.f=lambda self, **kw: None
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a, *args: None
verifyClass(I, C)
C.f=lambda self, a, *args, **kw: None
verifyClass(I, C)
C.f=lambda self, *args: None
verifyClass(I, C)
def testNoKW(self):
class I(Interface):
def f(a, **args): pass
class C(object):
def f(self, a): pass
implements(I)
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a, **foo: None
verifyClass(I, C)
def test_interfaces(self):
verifyObject(ITimeDelta, timedelta(minutes=20))
verifyObject(IDate, date(2000, 1, 2))
verifyObject(IDateTime, datetime(2000, 1, 2, 10, 20))
verifyObject(ITime, time(20, 30, 15, 1234))
verifyObject(ITZInfo, tzinfo())
verifyClass(ITimeDeltaClass, timedelta)
verifyClass(IDateClass, date)
verifyClass(IDateTimeClass, datetime)
verifyClass(ITimeClass, time)
def testExtraArgs(self):
class I(Interface):
def f(a): pass
class C(object):
def f(self, a, b): pass
implements(I)
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a: None
verifyClass(I, C)
C.f=lambda self, a, b=None: None
verifyClass(I, C)
def testVerifyImplementation(self):
from zpt._zope.interface.verify import verifyClass
self.assert_(verifyClass(FooInterface, Foo))
self.assert_(Interface.providedBy(I1))