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import testlib
import mitogen.core
import mitogen.parent
@mitogen.core.takes_econtext
def allocate_an_id(econtext):
mitogen.parent.upgrade_router(econtext)
return econtext.router.allocate_id()
class SlaveTest(testlib.RouterMixin, testlib.TestCase):
def test_slave_allocates_id(self):
context = self.router.local()
# Master's allocator named the context 1.
self.assertEqual(1, context.context_id)
# First call from slave allocates a block (2..1001)
id_ = context.call(allocate_an_id)
self.assertEqual(id_, 2)
# Second call from slave allocates from block (3..1001)
id_ = context.call(allocate_an_id)
self.assertEqual(id_, 3)
# Subsequent master allocation does not collide
c2 = self.router.local()
self.assertEqual(1002, c2.context_id)
context.shutdown()
c2.shutdown()
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