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Diffstat (limited to 'lib/python2.7/site-packages/zope.interface-3.6.4-py2.7-linux-x86_64.egg/zope/interface/tests/test_declarations.py')
| -rw-r--r-- | lib/python2.7/site-packages/zope.interface-3.6.4-py2.7-linux-x86_64.egg/zope/interface/tests/test_declarations.py | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/lib/python2.7/site-packages/zope.interface-3.6.4-py2.7-linux-x86_64.egg/zope/interface/tests/test_declarations.py b/lib/python2.7/site-packages/zope.interface-3.6.4-py2.7-linux-x86_64.egg/zope/interface/tests/test_declarations.py deleted file mode 100644 index 6c8455c7..00000000 --- a/lib/python2.7/site-packages/zope.interface-3.6.4-py2.7-linux-x86_64.egg/zope/interface/tests/test_declarations.py +++ /dev/null @@ -1,428 +0,0 @@ -############################################################################## -# -# Copyright (c) 2003 Zope Foundation and Contributors. -# All Rights Reserved. -# -# This software is subject to the provisions of the Zope Public License, -# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. -# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED -# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS -# FOR A PARTICULAR PURPOSE. -# -############################################################################## -"""Test the new API for making and checking interface declarations -""" -import doctest -import unittest - -from zope.interface import Interface, implements -from zope.interface import directlyProvides, providedBy -from zope.interface import classImplements, implementedBy, implementsOnly - -class I1(Interface): pass -class I2(Interface): pass -class I3(Interface): pass -class I4(Interface): pass -class I5(Interface): pass - -class A(object): - implements(I1) -class B(object): - implements(I2) -class C(A, B): - implements(I3) - -class COnly(A, B): - implementsOnly(I3) - -class COnly_old(A, B): - __implemented__ = I3 - -class D(COnly): - implements(I5) - -def test_ObjectSpecification_Simple(): - """ - >>> c = C() - >>> directlyProvides(c, I4) - >>> [i.__name__ for i in providedBy(c)] - ['I4', 'I3', 'I1', 'I2'] - """ - -def test_ObjectSpecification_Simple_w_only(): - """ - >>> c = COnly() - >>> directlyProvides(c, I4) - >>> [i.__name__ for i in providedBy(c)] - ['I4', 'I3'] - """ - -def test_ObjectSpecification_Simple_old_style(): - """ - >>> c = COnly_old() - >>> directlyProvides(c, I4) - >>> [i.__name__ for i in providedBy(c)] - ['I4', 'I3'] - """ - - -class Test(unittest.TestCase): - - # Note that most of the tests are in the doc strings of the - # declarations module. - - def test_backward_compat(self): - - class C1(object): __implemented__ = I1 - class C2(C1): __implemented__ = I2, I5 - class C3(C2): __implemented__ = I3, C2.__implemented__ - - self.assert_(C3.__implemented__.__class__ is tuple) - - self.assertEqual( - [i.getName() for i in providedBy(C3())], - ['I3', 'I2', 'I5'], - ) - - class C4(C3): - implements(I4) - - self.assertEqual( - [i.getName() for i in providedBy(C4())], - ['I4', 'I3', 'I2', 'I5'], - ) - - self.assertEqual( - [i.getName() for i in C4.__implemented__], - ['I4', 'I3', 'I2', 'I5'], - ) - - # Note that C3.__implemented__ should now be a sequence of interfaces - self.assertEqual( - [i.getName() for i in C3.__implemented__], - ['I3', 'I2', 'I5'], - ) - self.failIf(C3.__implemented__.__class__ is tuple) - - def test_module(self): - from zope.interface.tests import m1, m2 - #import zope.interface.tests.m2 - directlyProvides(m2, - m1.I1, - m1.I2, - ) - self.assertEqual(list(providedBy(m1)), - list(providedBy(m2)), - ) - - def test_builtins(self): - # Setup - - intspec = implementedBy(int) - olddeclared = intspec.declared - - classImplements(int, I1) - class myint(int): - implements(I2) - - x = 42 - self.assertEqual([i.getName() for i in providedBy(x)], - ['I1']) - - x = myint(42) - directlyProvides(x, I3) - self.assertEqual([i.getName() for i in providedBy(x)], - ['I3', 'I2', 'I1']) - - # cleanup - intspec.declared = olddeclared - classImplements(int) - - x = 42 - self.assertEqual([i.getName() for i in providedBy(x)], - []) - - -def test_signature_w_no_class_interfaces(): - """ - >>> from zope.interface import * - >>> class C(object): - ... pass - >>> c = C() - >>> list(providedBy(c)) - [] - - >>> class I(Interface): - ... pass - >>> directlyProvides(c, I) - >>> list(providedBy(c)) == list(directlyProvidedBy(c)) - 1 - """ - -def test_classImplement_on_deeply_nested_classes(): - """This test is in response to a bug found, which is why it's a bit - contrived - - >>> from zope.interface import * - >>> class B1(object): - ... pass - >>> class B2(B1): - ... pass - >>> class B3(B2): - ... pass - >>> class D(object): - ... implements() - >>> class S(B3, D): - ... implements() - - This failed due to a bug in the code for finding __providedBy__ - descriptors for old-style classes. - - """ - -def test_pickle_provides_specs(): - """ - >>> from pickle import dumps, loads - >>> a = A() - >>> I2.providedBy(a) - 0 - >>> directlyProvides(a, I2) - >>> I2.providedBy(a) - 1 - >>> a2 = loads(dumps(a)) - >>> I2.providedBy(a2) - 1 - - """ - -def test_that_we_dont_inherit_class_provides(): - """ - >>> from zope.interface import classProvides - >>> class X(object): - ... classProvides(I1) - >>> class Y(X): - ... pass - >>> [i.__name__ for i in X.__provides__] - ['I1'] - >>> Y.__provides__ - Traceback (most recent call last): - ... - AttributeError: __provides__ - - """ - -def test_that_we_dont_inherit_provides_optimizations(): - """ - - When we make a declaration for a class, we install a __provides__ - descriptors that provides a default for instances that don't have - instance-specific declarations: - - >>> class A(object): - ... implements(I1) - - >>> class B(object): - ... implements(I2) - - >>> [i.__name__ for i in A().__provides__] - ['I1'] - >>> [i.__name__ for i in B().__provides__] - ['I2'] - - But it's important that we don't use this for subclasses without - declarations. This would cause incorrect results: - - >>> class X(A, B): - ... pass - - >>> X().__provides__ - Traceback (most recent call last): - ... - AttributeError: __provides__ - - However, if we "induce" a declaration, by calling implementedBy - (even indirectly through providedBy): - - >>> [i.__name__ for i in providedBy(X())] - ['I1', 'I2'] - - - then the optimization will work: - - >>> [i.__name__ for i in X().__provides__] - ['I1', 'I2'] - - """ - -def test_classProvides_before_implements(): - """Special descriptor for class __provides__ - - The descriptor caches the implementedBy info, so that - we can get declarations for objects without instance-specific - interfaces a bit quicker. - - For example:: - - >>> from zope.interface import Interface, classProvides - >>> class IFooFactory(Interface): - ... pass - >>> class IFoo(Interface): - ... pass - >>> class C(object): - ... classProvides(IFooFactory) - ... implements(IFoo) - >>> [i.getName() for i in C.__provides__] - ['IFooFactory'] - - >>> [i.getName() for i in C().__provides__] - ['IFoo'] - """ - -def test_getting_spec_for_proxied_builtin_class(): - """ - - In general, we should be able to get a spec - for a proxied class if someone has declared or - asked for a spec before. - - We don't want to depend on proxies in this (zope.interface) - package, but we do want to work with proxies. Proxies have the - effect that a class's __dict__ cannot be gotten. Further, for - built-in classes, we can't save, and thus, cannot get, any class - attributes. We'll emulate this by treating a plain object as a class: - - >>> cls = object() - - We'll create an implements specification: - - >>> import zope.interface.declarations - >>> impl = zope.interface.declarations.Implements(I1, I2) - - Now, we'll emulate a declaration for a built-in type by putting - it in BuiltinImplementationSpecifications: - - >>> zope.interface.declarations.BuiltinImplementationSpecifications[ - ... cls] = impl - - Now, we should be able to get it back: - - >>> implementedBy(cls) is impl - True - - Of course, we don't want to leave it there. :) - - >>> del zope.interface.declarations.BuiltinImplementationSpecifications[ - ... cls] - - """ - -def test_declaration_get(): - """ - We can get definitions from a declaration: - - >>> import zope.interface - >>> class I1(zope.interface.Interface): - ... a11 = zope.interface.Attribute('a11') - ... a12 = zope.interface.Attribute('a12') - >>> class I2(zope.interface.Interface): - ... a21 = zope.interface.Attribute('a21') - ... a22 = zope.interface.Attribute('a22') - ... a12 = zope.interface.Attribute('a212') - >>> class I11(I1): - ... a11 = zope.interface.Attribute('a111') - - >>> decl = zope.interface.Declaration(I11, I2) - >>> decl.get('a11') is I11.get('a11') - True - >>> decl.get('a12') is I1.get('a12') - True - >>> decl.get('a21') is I2.get('a21') - True - >>> decl.get('a22') is I2.get('a22') - True - >>> decl.get('a') - >>> decl.get('a', 42) - 42 - - We get None even with no interfaces: - - >>> decl = zope.interface.Declaration() - >>> decl.get('a11') - >>> decl.get('a11', 42) - 42 - - We get new data if e change interface bases: - - >>> decl.__bases__ = I11, I2 - >>> decl.get('a11') is I11.get('a11') - True - """ - -def test_classImplements_after_classImplementsOnly_issue_402(): - """http://www.zope.org/Collectors/Zope3-dev/402 - ->>> from zope.interface import * ->>> class I1(Interface): -... pass ->>> class I2(Interface): -... pass ->>> class C: -... implements(I1) ->>> class C2: -... implementsOnly(I2) ->>> class I3(Interface): -... pass - ->>> [i.__name__ for i in providedBy(C2()).__iro__] -['I2', 'Interface'] - ->>> classImplements(C2, I3) ->>> [i.__name__ for i in providedBy(C2()).__iro__] -['I2', 'I3', 'Interface'] - ->>> class I4(Interface): -... pass ->>> classImplements(C2, I4) ->>> [i.__name__ for i in providedBy(C2()).__iro__] -['I2', 'I3', 'I4', 'Interface'] - - -""" - -def test_picklability_of_implements_specifications(): - """ - - Sometimes, we need to pickle implements specs. We should be able - to do so as long as the class is picklable. - - >>> import pickle - >>> pickle.loads(pickle.dumps(implementedBy(C))) is implementedBy(C) - True - - - """ - -def test_provided_by_with_slots(): - """ - - This is an edge case: if the __slots__ of a class contain '__provides__', - using providedBy() on that class should still work (this occurs, for - example, when providing an adapter for a concrete class.) - - >>> import zope.interface - >>> class Slotted(object): - ... __slots__ = ('__provides__') - >>> class IFoo(zope.interface.Interface): - ... pass - >>> IFoo.providedBy(Slotted) - False - - """ - -def test_suite(): - return unittest.TestSuite(( - unittest.makeSuite(Test), - doctest.DocTestSuite("zope.interface.declarations"), - doctest.DocTestSuite(), - )) |