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# -*- coding: utf-8 -*-
"""
A test helper for seeing what happens when slp_switch()
fails.
"""
# pragma: no cover
import greenlet
print('fail_slp_switch is running', flush=True)
runs = []
def func():
runs.append(1)
greenlet.getcurrent().parent.switch()
runs.append(2)
greenlet.getcurrent().parent.switch()
runs.append(3)
g = greenlet._greenlet.UnswitchableGreenlet(func)
g.switch()
assert runs == [1]
g.switch()
assert runs == [1, 2]
g.force_slp_switch_error = True
# This should crash.
g.switch()
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