Add some tests for make_deferred_yieldable

This commit is contained in:
Richard van der Hoff 2017-10-17 10:52:31 +01:00
parent e0a75e0c25
commit 5b5f35ccc0

View file

@ -94,3 +94,41 @@ class LoggingContextTestCase(unittest.TestCase):
yield defer.succeed(None)
return self._test_preserve_fn(nonblocking_function)
@defer.inlineCallbacks
def test_make_deferred_yieldable(self):
# a function which retuns an incomplete deferred, but doesn't follow
# the synapse rules.
def blocking_function():
d = defer.Deferred()
reactor.callLater(0, d.callback, None)
return d
sentinel_context = LoggingContext.current_context()
with LoggingContext() as context_one:
context_one.test_key = "one"
d1 = logcontext.make_deferred_yieldable(blocking_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
yield d1
# now it should be restored
self._check_test_key("one")
@defer.inlineCallbacks
def test_make_deferred_yieldable_on_non_deferred(self):
"""Check that make_deferred_yieldable does the right thing when its
argument isn't actually a deferred"""
with LoggingContext() as context_one:
context_one.test_key = "one"
d1 = logcontext.make_deferred_yieldable("bum")
self._check_test_key("one")
r = yield d1
self.assertEqual(r, "bum")
self._check_test_key("one")