def test_2(self):
e = Electrode()
assert e.acquire()
assert not e.acquire(False)
# After releasing the lock, it should be able to be acquired again.
e.release()
assert e.acquire()
def test_1(self):
e = Electrode()
# Releasing an electrode that's unlocked should raise a ThreadError, just as `releasing a Lock <https://docs.python.org/2/library/threading.html#threading.Lock.release>`_ does. See `pytest.raises <https://pytest.org/latest/assert.html#assertions-about-expected-exceptions>`_.
with pytest.raises(ThreadError):
e.release()