def test_dispose_extension():
binalyzer = Binalyzer()
binalyzer.extensions = {}
mock = MockExtension(binalyzer)
assert binalyzer.has_extension("mock")
assert len(binalyzer.extensions) == 1
assert isinstance(binalyzer.extensions["mock"], MockExtension)
assert id(mock) == id(binalyzer.extension("mock"))
binalyzer.del_extension("mock")
assert not binalyzer.has_extension("mock")
assert len(binalyzer.extensions) == 0
assert mock.disposed
def test_del_non_existent_extension():
binalyzer = Binalyzer()
with pytest.raises(RuntimeError):
binalyzer.del_extension("mock")