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from py.test import skip
try:
import stackless
except ImportError:
try:
from lib_pypy import stackless as stackless
except ImportError as e:
skip('cannot import stackless: %s' % (e,))
class Test_StacklessPickling:
def test_pickle_main_coroutine(self):
import stackless, pickle
s = pickle.dumps(stackless.coroutine.getcurrent())
print(s)
c = pickle.loads(s)
assert c is stackless.coroutine.getcurrent()
def test_basic_tasklet_pickling(self):
import stackless
from stackless import run, schedule, tasklet
import pickle
output = []
import new
mod = new.module('mod')
mod.output = output
exec("""from stackless import schedule
def aCallable(name):
output.append(('b', name))
schedule()
output.append(('a', name))
""", mod.__dict__)
import sys
sys.modules['mod'] = mod
aCallable = mod.aCallable
tasks = []
for name in "ABCDE":
tasks.append(tasklet(aCallable)(name))
schedule()
assert output == [('b', x) for x in "ABCDE"]
del output[:]
pickledTasks = pickle.dumps(tasks)
schedule()
assert output == [('a', x) for x in "ABCDE"]
del output[:]
unpickledTasks = pickle.loads(pickledTasks)
for task in unpickledTasks:
task.insert()
schedule()
assert output == [('a', x) for x in "ABCDE"]
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