def testSimple(self):
"""
Run through some valid cases.
"""
data = []
def msg_added(name, value):
data.append((name, value))
def msg_removed(name):
data.append((name, ))
p = pub.Publisher()
p.subscribe(msg_added, 'test.added')
p.subscribe(msg_removed, 'test.removed')
pd = box.PubDict(RLock(), p.sendMessage, 'test')
pd['a'] = 'abc'
pd['b'] = 'def'
pd['c'] = 'ghi'
del pd['a']
pd['a'] = 'jkl'
del pd['c']
expected = {'a': 'jkl', 'b': 'def'}
expected_data = [('a', 'abc'), ('b', 'def'), ('c', 'ghi'), ('a', ),
('a', 'jkl'), ('c', )]
eq_(pd, expected)
eq_(data, expected_data)
def testLocked(self):
"""
Attempt a compound operation.
"""
pd = box.PubDict(RLock(), pub.Publisher().sendMessage, 'test')
pd['a'] = 'abc'
with pd.lock:
del pd['a']
pd['a'] = 'def'
expected = {'a': 'def'}
eq_(pd, expected)
def testInvalid(self):
"""
Try some bad scenarios.
"""
pd = box.PubDict(RLock(), pub.Publisher().sendMessage, 'test')
# Setting None.
try:
pd['a'] = None
except ValueError:
pass
else:
assert False, 'Expected ValueError.'
# Overwriting.
pd['a'] = 'abc'
try:
pd['a'] = 'def'
except KeyError:
pass
else:
assert False, 'Expected KeyError.'