/usr/share/pyshared/zope/interface/tests/test_adapter.py is in python-zope.interface 3.6.1-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 | ##############################################################################
#
# 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.
#
##############################################################################
"""Adapter registry tests
$Id: test_adapter.py 110736 2010-04-11 10:59:30Z regebro $
"""
import doctest
import unittest
import zope.interface
from zope.interface.adapter import AdapterRegistry
class IF0(zope.interface.Interface):
pass
class IF1(IF0):
pass
class IB0(zope.interface.Interface):
pass
class IB1(IB0):
pass
class IR0(zope.interface.Interface):
pass
class IR1(IR0):
pass
def test_multi_adapter_get_best_match():
"""
>>> registry = AdapterRegistry()
>>> class IB2(IB0):
... pass
>>> class IB3(IB2, IB1):
... pass
>>> class IB4(IB1, IB2):
... pass
>>> registry.register([None, IB1], IR0, '', 'A1')
>>> registry.register([None, IB0], IR0, '', 'A0')
>>> registry.register([None, IB2], IR0, '', 'A2')
>>> registry.lookup((IF1, IB1), IR0, '')
'A1'
>>> registry.lookup((IF1, IB2), IR0, '')
'A2'
>>> registry.lookup((IF1, IB0), IR0, '')
'A0'
>>> registry.lookup((IF1, IB3), IR0, '')
'A2'
>>> registry.lookup((IF1, IB4), IR0, '')
'A1'
"""
def test_multi_adapter_lookupAll_get_best_matches():
"""
>>> registry = AdapterRegistry()
>>> class IB2(IB0):
... pass
>>> class IB3(IB2, IB1):
... pass
>>> class IB4(IB1, IB2):
... pass
>>> registry.register([None, IB1], IR0, '', 'A1')
>>> registry.register([None, IB0], IR0, '', 'A0')
>>> registry.register([None, IB2], IR0, '', 'A2')
>>> tuple(registry.lookupAll((IF1, IB1), IR0))[0][1]
'A1'
>>> tuple(registry.lookupAll((IF1, IB2), IR0))[0][1]
'A2'
>>> tuple(registry.lookupAll((IF1, IB0), IR0))[0][1]
'A0'
>>> tuple(registry.lookupAll((IF1, IB3), IR0))[0][1]
'A2'
>>> tuple(registry.lookupAll((IF1, IB4), IR0))[0][1]
'A1'
"""
def test_multi_adapter_w_default():
"""
>>> registry = AdapterRegistry()
>>> registry.register([None, None], IB1, 'bob', 'A0')
>>> registry.lookup((IF1, IR1), IB0, 'bob')
'A0'
>>> registry.register([None, IR0], IB1, 'bob', 'A1')
>>> registry.lookup((IF1, IR1), IB0, 'bob')
'A1'
>>> registry.lookup((IF1, IR1), IB0, 'bruce')
>>> registry.register([None, IR1], IB1, 'bob', 'A2')
>>> registry.lookup((IF1, IR1), IB0, 'bob')
'A2'
"""
def test_multi_adapter_w_inherited_and_multiple_registrations():
"""
>>> registry = AdapterRegistry()
>>> class IX(zope.interface.Interface):
... pass
>>> registry.register([IF0, IR0], IB1, 'bob', 'A1')
>>> registry.register([IF1, IX], IB1, 'bob', 'AX')
>>> registry.lookup((IF1, IR1), IB0, 'bob')
'A1'
"""
def test_named_adapter_with_default():
"""Query a named simple adapter
>>> registry = AdapterRegistry()
If we ask for a named adapter, we won't get a result unless there
is a named adapter, even if the object implements the interface:
>>> registry.lookup([IF1], IF0, 'bob')
>>> registry.register([None], IB1, 'bob', 'A1')
>>> registry.lookup([IF1], IB0, 'bob')
'A1'
>>> registry.lookup([IF1], IB0, 'bruce')
>>> registry.register([None], IB0, 'bob', 'A2')
>>> registry.lookup([IF1], IB0, 'bob')
'A2'
"""
def test_multi_adapter_gets_closest_provided():
"""
>>> registry = AdapterRegistry()
>>> registry.register([IF1, IR0], IB0, 'bob', 'A1')
>>> registry.register((IF1, IR0), IB1, 'bob', 'A2')
>>> registry.lookup((IF1, IR1), IB0, 'bob')
'A1'
>>> registry = AdapterRegistry()
>>> registry.register([IF1, IR0], IB1, 'bob', 'A2')
>>> registry.register([IF1, IR0], IB0, 'bob', 'A1')
>>> registry.lookup([IF1, IR0], IB0, 'bob')
'A1'
>>> registry = AdapterRegistry()
>>> registry.register([IF1, IR0], IB0, 'bob', 'A1')
>>> registry.register([IF1, IR1], IB1, 'bob', 'A2')
>>> registry.lookup([IF1, IR1], IB0, 'bob')
'A2'
>>> registry = AdapterRegistry()
>>> registry.register([IF1, IR1], IB1, 'bob', 2)
>>> registry.register([IF1, IR0], IB0, 'bob', 1)
>>> registry.lookup([IF1, IR1], IB0, 'bob')
2
"""
def test_multi_adapter_check_non_default_dont_hide_default():
"""
>>> registry = AdapterRegistry()
>>> class IX(zope.interface.Interface):
... pass
>>> registry.register([None, IR0], IB0, 'bob', 1)
>>> registry.register([IF1, IX], IB0, 'bob', 2)
>>> registry.lookup([IF1, IR1], IB0, 'bob')
1
"""
def test_adapter_hook_with_factory_producing_None():
"""
>>> registry = AdapterRegistry()
>>> default = object()
>>> class Object1(object):
... zope.interface.implements(IF0)
>>> class Object2(object):
... zope.interface.implements(IF0)
>>> def factory(context):
... if isinstance(context, Object1):
... return 'adapter'
... return None
>>> registry.register([IF0], IB0, '', factory)
>>> registry.adapter_hook(IB0, Object1())
'adapter'
>>> registry.adapter_hook(IB0, Object2()) is None
True
>>> registry.adapter_hook(IB0, Object2(), default=default) is default
True
"""
def test_adapter_registry_update_upon_interface_bases_change():
"""
Let's first create a adapter registry and a simple adaptation hook:
>>> globalRegistry = AdapterRegistry()
>>> def _hook(iface, ob, lookup=globalRegistry.lookup1):
... factory = lookup(zope.interface.providedBy(ob), iface)
... if factory is None:
... return None
... else:
... return factory(ob)
>>> zope.interface.interface.adapter_hooks.append(_hook)
Now we create some interfaces and an implementation:
>>> class IX(zope.interface.Interface):
... pass
>>> class IY(zope.interface.Interface):
... pass
>>> class X(object):
... pass
>>> class Y(object):
... zope.interface.implements(IY)
... def __init__(self, original):
... self.original=original
and register an adapter:
>>> globalRegistry.register((IX,), IY, '', Y)
at first, we still expect the adapter lookup from `X` to `IY` to fail:
>>> IY(X()) #doctest: +NORMALIZE_WHITESPACE +ELLIPSIS
Traceback (most recent call last):
...
TypeError: ('Could not adapt',
<zope.interface.tests.test_adapter.X object at ...>,
<InterfaceClass zope.interface.tests.test_adapter.IY>)
But after we declare an interface on the class `X`, it should pass:
>>> zope.interface.classImplementsOnly(X, IX)
>>> IY(X()) #doctest: +ELLIPSIS
<zope.interface.tests.test_adapter.Y object at ...>
>>> hook = zope.interface.interface.adapter_hooks.pop()
"""
def test_changing_declarations():
"""
If we change declarations for a class, those adapter lookup should
eflect the changes:
>>> class I1(zope.interface.Interface):
... pass
>>> class I2(zope.interface.Interface):
... pass
>>> registry = AdapterRegistry()
>>> registry.register([I1], I2, '', 42)
>>> class C:
... pass
>>> registry.lookup([zope.interface.implementedBy(C)], I2, '')
>>> zope.interface.classImplements(C, I1)
>>> registry.lookup([zope.interface.implementedBy(C)], I2, '')
42
"""
def test_correct_multi_adapter_lookup():
"""
>>> registry = AdapterRegistry()
>>> registry.register([IF0, IB1], IR0, '', 'A01')
>>> registry.register([IF1, IB0], IR0, '', 'A10')
>>> registry.lookup((IF1, IB1), IR0, '')
'A10'
"""
def test_duplicate_bases():
"""
There was a bug that caused problems if a spec had multiple bases:
>>> class I(zope.interface.Interface):
... pass
>>> class I2(I, I):
... pass
>>> registry = AdapterRegistry()
>>> registry.register([I2], IR0, 'x', 'X')
>>> registry.lookup((I2, ), IR0, 'x')
'X'
>>> registry.register([I2], IR0, 'y', 'Y')
>>> registry.lookup((I2, ), IR0, 'x')
'X'
>>> registry.lookup((I2, ), IR0, 'y')
'Y'
"""
def test_register_objects_with_cmp():
"""
The registry should never use == as that will tend to fail when
objects are picky about what they are compared with:
>>> class Picky:
... def __cmp__(self, other):
... raise TypeError("I\'m too picky for comparison!")
>>> class I(zope.interface.Interface):
... pass
>>> class I2(I, I):
... pass
>>> registry = AdapterRegistry()
>>> picky = Picky()
>>> registry.register([I2], IR0, '', picky)
>>> registry.unregister([I2], IR0, '', picky)
>>> registry.subscribe([I2], IR0, picky)
>>> registry.unsubscribe([I2], IR0, picky)
"""
def test_unregister_cleans_up_empties():
"""
>>> class I(zope.interface.Interface):
... pass
>>> class IP(zope.interface.Interface):
... pass
>>> class C(object):
... pass
>>> registry = AdapterRegistry()
>>> registry.register([], IP, '', C)
>>> registry.register([I], IP, '', C)
>>> registry.register([I], IP, 'name', C)
>>> registry.register([I, I], IP, '', C)
>>> len(registry._adapters)
3
>>> map(len, registry._adapters)
[1, 1, 1]
>>> registry.unregister([], IP, '', C)
>>> registry.unregister([I], IP, '', C)
>>> registry.unregister([I], IP, 'name', C)
>>> registry.unregister([I, I], IP, '', C)
>>> registry._adapters
[]
"""
def test_unsubscribe_cleans_up_empties():
"""
>>> class I1(zope.interface.Interface):
... pass
>>> class I2(zope.interface.Interface):
... pass
>>> class IP(zope.interface.Interface):
... pass
>>> registry = AdapterRegistry()
>>> def handler(event):
... pass
>>> registry.subscribe([I1], I1, handler)
>>> registry.subscribe([I2], I1, handler)
>>> len(registry._subscribers)
2
>>> map(len, registry._subscribers)
[0, 2]
>>> registry.unsubscribe([I1], I1, handler)
>>> registry.unsubscribe([I2], I1, handler)
>>> registry._subscribers
[]
"""
def test_suite():
return unittest.TestSuite((
doctest.DocFileSuite('../adapter.txt', '../adapter.ru.txt',
'../human.txt', '../human.ru.txt',
'foodforthought.txt',
globs={'__name__': '__main__'}),
doctest.DocTestSuite(),
))
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')
|