def test_ismount_different_device(self):
# Simulate the path being on a different device from its parent by
# mocking out st_dev.
save_lstat = os.lstat
def fake_lstat(path):
st_ino = 0
st_dev = 0
if path == ABSTFN:
st_dev = 1
st_ino = 1
return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0))
try:
os.lstat = fake_lstat
self.assertIs(posixpath.ismount(ABSTFN), True)
finally:
os.lstat = save_lstat
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