def test_oserror(self, m_kill):
with pytest.raises(OSError):
watch_ww3._pid_exists(42)
def test_pid_permission_error(self, m_kill):
pid_exists = watch_ww3._pid_exists(42)
assert pid_exists
def test_no_such_pid(self, m_kill):
pid_exists = watch_ww3._pid_exists(42)
assert not pid_exists
def test_pid_exists(self, m_kill):
pid_exists = watch_ww3._pid_exists(42)
assert pid_exists
def test_zero_pid(self):
with pytest.raises(ValueError):
watch_ww3._pid_exists(0)
def test_negative_pid(self):
pid_exists = watch_ww3._pid_exists(-1)
assert not pid_exists