def test_wait_transfer_stack_context(self):
# Wait should not pick up contexts from where callback was invoked,
# even if that function improperly fails to wrap its callback.
cb = yield gen.Callback('k1')
self.function_with_stack_context(cb)
self.assertEqual(self.named_contexts, [])
yield gen.Wait('k1')
self.assertEqual(self.named_contexts, [])
def f2():
(yield gen.Callback(1))()
yield gen.Wait(1)
self.io_loop.add_callback(lambda: 1 / 0)
try:
yield gen.Task(self.io_loop.add_timeout,
self.io_loop.time() + 10)
except ZeroDivisionError:
raise gen.Return(42)
def f():
try:
yield gen.Wait("k1")
raise Exception("did not get expected exception")
except gen.UnknownKeyError:
pass
(yield gen.Callback("k2"))("v2")
self.assertEqual((yield gen.Wait("k2")), "v2")
self.stop()
def test_async_await_mixed_multi_native_yieldpoint(self):
namespace = exec_test(globals(), locals(), """
async def f1():
await gen.Task(self.io_loop.add_callback)
return 42
""")
@gen.coroutine
def f2():
yield gen.Task(self.io_loop.add_callback)
raise gen.Return(43)
f2(callback=(yield gen.Callback('cb')))
results = yield [namespace['f1'](), gen.Wait('cb')]
self.assertEqual(results, [42, 43])
self.finished = True
def f():
self.io_loop.add_callback((yield gen.Callback("k1")))
yield gen.Wait("k1")
1 / 0
def f():
(yield gen.Callback("k1"))()
res = yield gen.Wait("k1")
self.assertTrue(res is None)
self.stop()
def f():
(yield gen.Callback("k1"))("v1")
(yield gen.Callback("k2"))("v2")
results = yield dict(foo=gen.Wait("k1"), bar=gen.Wait("k2"))
self.assertEqual(results, dict(foo="v1", bar="v2"))
self.stop()
def f():
(yield gen.Callback((1, 2)))((3, 4))
res = yield gen.Wait((1, 2))
self.assertEqual((3, 4), res)
self.stop()
def f():
self.orphaned_callback = yield gen.Callback(1)
def f():
yield gen.Callback((1, 2))
self.stop()
def f():
self.io_loop.add_callback((yield gen.Callback(0)))
yield gen.Wait(0)
self.stop()
def f():
yield gen.Callback("k1")
self.stop()
def f():
yield gen.Callback((1, 2))
yield gen.Wait((2, 3))
self.stop()
def f():
yield gen.Callback("k1")
yield gen.Wait("k2")
self.stop()
def test_yield_outside_with(self):
# This pattern avoids the problem in the previous test.
cb = yield gen.Callback('k1')
with StackContext(functools.partial(self.context, 'c1')):
self.io_loop.add_callback(cb)
yield gen.Wait('k1')
def f():
(yield gen.Callback("k1"))("v1")
(yield gen.Callback("k2"))("v2")
results = yield [gen.Wait("k1"), gen.Wait("k2")]
self.assertEqual(results, ["v1", "v2"])
self.stop()
def test_yield_outside_with_exception_stack_context(self):
cb = yield gen.Callback('k1')
with ExceptionStackContext(lambda t, v, tb: False):
self.io_loop.add_callback(cb)
yield gen.Wait('k1')
def f():
(yield gen.Callback("k1"))(42)
res = yield gen.Wait("k1")
self.assertEqual(42, res)
self.stop()
