def test_register(self):
plugins = PyPlugins()
class MyPlugin:
pass
my = MyPlugin()
plugins.register(my)
assert plugins.getplugins() == [my]
my2 = MyPlugin()
plugins.register(my2)
assert plugins.getplugins() == [my, my2]
assert plugins.isregistered(my)
assert plugins.isregistered(my2)
plugins.unregister(my)
assert not plugins.isregistered(my)
assert plugins.getplugins() == [my2]
