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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
from __future__ import absolute_import, division
from twisted.trial import unittest
from twisted.python import roots
class RootsTests(unittest.TestCase):
def testExceptions(self):
request = roots.Request()
try:
request.write(b"blah")
except NotImplementedError:
pass
else:
self.fail()
try:
request.finish()
except NotImplementedError:
pass
else:
self.fail()
def testCollection(self):
collection = roots.Collection()
collection.putEntity("x", 'test')
self.assertEqual(collection.getStaticEntity("x"),
'test')
collection.delEntity("x")
self.assertEqual(collection.getStaticEntity('x'),
None)
try:
collection.storeEntity("x", None)
except NotImplementedError:
pass
else:
self.fail()
try:
collection.removeEntity("x", None)
except NotImplementedError:
pass
else:
self.fail()
def testConstrained(self):
class const(roots.Constrained):
def nameConstraint(self, name):
return (name == 'x')
c = const()
self.assertEqual(c.putEntity('x', 'test'), None)
self.failUnlessRaises(roots.ConstraintViolation,
c.putEntity, 'y', 'test')
def testHomogenous(self):
h = roots.Homogenous()
h.entityType = int
h.putEntity('a', 1)
self.assertEqual(h.getStaticEntity('a'),1 )
self.failUnlessRaises(roots.ConstraintViolation,
h.putEntity, 'x', 'y')