Class Okay

tests/test_hooks.py:20–27

# Define two classes, one which succeeds and one which raises TryNext. Each
# sets the attribute `called` to True when it is called.
class Okay(object):
    def __init__(self, message):
        self.message = message
        self.called = False

    def __call__(self):
        self.called = True
        return self.message


class Fail(object):