def test___doc___element(self):
class I(Interface):
"xxx"
self.assertEqual(I.__doc__, "xxx")
self.assertEqual(list(I), [])
class I(Interface):
"xxx"
__doc__ = Attribute('the doc')
self.assertEqual(I.__doc__, "")
self.assertEqual(list(I), ['__doc__'])
python类Attribute()的实例源码
def test_invariant_as_decorator():
"""Invaiants can be deined in line
>>> class IRange(interface.Interface):
... min = interface.Attribute("Lower bound")
... max = interface.Attribute("Upper bound")
...
... @interface.invariant
... def range_invariant(ob):
... if ob.max < ob.min:
... raise Invalid('max < min')
>>> class Range(object):
... interface.implements(IRange)
...
... def __init__(self, min, max):
... self.min, self.max = min, max
>>> IRange.validateInvariants(Range(1,2))
>>> IRange.validateInvariants(Range(1,1))
>>> IRange.validateInvariants(Range(2,1))
Traceback (most recent call last):
...
Invalid: max < min
"""
def testMethodForAttr(self):
class IFoo(Interface):
foo = Attribute("The foo Attribute")
class Foo:
implements(IFoo)
def foo(self):
pass
verifyClass(IFoo, Foo)
def test_schema_wo_fields(self):
from zope.interface import Interface
from zope.interface import Attribute
class INoFields(Interface):
def method():
pass
attr = Attribute('ignoreme')
errors = self._callFUT(INoFields, object())
self.assertEqual(len(errors), 0)
def test___doc___element(self):
class I(Interface):
"xxx"
self.assertEqual(I.__doc__, "xxx")
self.assertEqual(list(I), [])
class I(Interface):
"xxx"
__doc__ = Attribute('the doc')
self.assertEqual(I.__doc__, "")
self.assertEqual(list(I), ['__doc__'])
def test_invariant_as_decorator():
"""Invaiants can be deined in line
>>> class IRange(interface.Interface):
... min = interface.Attribute("Lower bound")
... max = interface.Attribute("Upper bound")
...
... @interface.invariant
... def range_invariant(ob):
... if ob.max < ob.min:
... raise Invalid('max < min')
>>> class Range(object):
... interface.implements(IRange)
...
... def __init__(self, min, max):
... self.min, self.max = min, max
>>> IRange.validateInvariants(Range(1,2))
>>> IRange.validateInvariants(Range(1,1))
>>> IRange.validateInvariants(Range(2,1))
Traceback (most recent call last):
...
Invalid: max < min
"""
def testMethodForAttr(self):
class IFoo(Interface):
foo = Attribute("The foo Attribute")
class Foo:
implements(IFoo)
def foo(self):
pass
verifyClass(IFoo, Foo)
def test_get_hit_from_base_wo__v_attrs(self):
from zope.interface.interface import Attribute
from zope.interface.interface import Interface
class IFoo(Interface):
foo = Attribute('foo')
class IBar(Interface):
bar = Attribute('bar')
spec = self._makeOne([IFoo, IBar])
self.assertTrue(spec.get('foo') is IFoo.get('foo'))
self.assertTrue(spec.get('bar') is IBar.get('bar'))
def test_ctor_w_attrs_attrib_methods(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
klass = self._getTargetClass()
inst = klass('ITesting', attrs=ATTRS)
self.assertEqual(inst.__name__, 'ITesting')
self.assertEqual(inst.__doc__, '')
self.assertEqual(inst.__bases__, ())
self.assertEqual(inst.names(), ATTRS.keys())
def test_names_w_all_False_ignores_bases(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
BASE_ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
DERIVED_ATTRS = {'baz': Attribute('Baz', ''),
}
base = self._makeOne('IBase', attrs=BASE_ATTRS)
derived = self._makeOne('IDerived', bases=(base,), attrs=DERIVED_ATTRS)
self.assertEqual(sorted(derived.names(all=False)), ['baz'])
def test_names_w_all_True_no_bases(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
one = self._makeOne(attrs=ATTRS)
self.assertEqual(sorted(one.names(all=True)), ['bar', 'foo'])
def test_names_w_all_True_w_bases_simple(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
BASE_ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
DERIVED_ATTRS = {'baz': Attribute('Baz', ''),
}
base = self._makeOne('IBase', attrs=BASE_ATTRS)
derived = self._makeOne('IDerived', bases=(base,), attrs=DERIVED_ATTRS)
self.assertEqual(sorted(derived.names(all=True)), ['bar', 'baz', 'foo'])
def test_namesAndDescriptions_w_all_False_ignores_bases(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
BASE_ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
DERIVED_ATTRS = {'baz': Attribute('Baz', ''),
}
base = self._makeOne('IBase', attrs=BASE_ATTRS)
derived = self._makeOne('IDerived', bases=(base,), attrs=DERIVED_ATTRS)
self.assertEqual(sorted(derived.namesAndDescriptions(all=False)),
[('baz', DERIVED_ATTRS['baz']),
])
def test_namesAndDescriptions_w_all_True_no_bases(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
one = self._makeOne(attrs=ATTRS)
self.assertEqual(sorted(one.namesAndDescriptions(all=False)),
[('bar', ATTRS['bar']),
('foo', ATTRS['foo']),
])
def test___getitem___hit(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
one = self._makeOne(attrs=ATTRS)
self.assertEqual(one['foo'], ATTRS['foo'])
self.assertEqual(one['bar'], ATTRS['bar'])
def test___contains___hit(self):
from zope.interface.interface import Attribute
from zope.interface.interface import fromFunction
def _bar():
"""DOCSTRING"""
ATTRS = {'foo': Attribute('Foo', ''),
'bar': fromFunction(_bar),
}
one = self._makeOne(attrs=ATTRS)
self.assertTrue('foo' in one)
self.assertTrue('bar' in one)
def test_queryDescriptionFor_hit(self):
from zope.interface import Attribute
ATTRS = {'attr': Attribute('Title', 'Description')}
iface = self._makeOne(attrs=ATTRS)
self.assertEqual(iface.queryDescriptionFor('attr'), ATTRS['attr'])
def test_attributes_link_to_interface(self):
from zope.interface import Interface
from zope.interface import Attribute
class I1(Interface):
attr = Attribute("My attr")
self.assertTrue(I1['attr'].interface is I1)
def test_names_simple(self):
from zope.interface import Attribute
from zope.interface import Interface
class ISimple(Interface):
attr = Attribute(u'My attr')
def method():
pass
self.assertEqual(sorted(ISimple.names()), ['attr', 'method'])
def test_getDescriptionFor_derived(self):
from zope.interface import Attribute
from zope.interface.interface import Method
from zope.interface import Interface
class IBase(Interface):
attr = Attribute(u'My attr')
def method():
"My method"
class IDerived(IBase):
attr2 = Attribute(u'My attr2')
def method():
"My method, overridden"
def method2():
"My method2"
a_desc = IDerived.getDescriptionFor('attr')
self.assertTrue(isinstance(a_desc, Attribute))
self.assertEqual(a_desc.__name__, 'attr')
self.assertEqual(a_desc.__doc__, 'My attr')
m_desc = IDerived.getDescriptionFor('method')
self.assertTrue(isinstance(m_desc, Method))
self.assertEqual(m_desc.__name__, 'method')
self.assertEqual(m_desc.__doc__, 'My method, overridden')
a2_desc = IDerived.getDescriptionFor('attr2')
self.assertTrue(isinstance(a2_desc, Attribute))
self.assertEqual(a2_desc.__name__, 'attr2')
self.assertEqual(a2_desc.__doc__, 'My attr2')
m2_desc = IDerived.getDescriptionFor('method2')
self.assertTrue(isinstance(m2_desc, Method))
self.assertEqual(m2_desc.__name__, 'method2')
self.assertEqual(m2_desc.__doc__, 'My method2')
