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import atexit, sys
def test_args():
import io
stdout, stderr = sys.stdout, sys.stderr
nhooks = atexit._ncallbacks()
try:
sys.stdout = sys.stderr = capture = io.StringIO()
def h1():
print("h1")
def h2():
print("h2")
atexit.register(h1)
atexit.register(h2)
assert atexit._ncallbacks() == nhooks + 2
atexit._run_exitfuncs()
assert atexit._ncallbacks() == 0
assert capture.getvalue() == 'h2\nh1\n'
finally:
sys.stdout = stdout
sys.stderr = stderr
def test_atexit_uses_unraisablehook():
nhooks = atexit._ncallbacks()
l = []
def ownhook(hookargs):
l.append(hookargs)
sys.unraisablehook = ownhook
try:
def r():
1/0
atexit.register(r)
atexit._run_exitfuncs()
assert atexit._ncallbacks() == nhooks
ua = l[0]
assert ua.exc_type is ZeroDivisionError
assert ua.object is r
finally:
sys.unraisablehook = sys.__unraisablehook__
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