51     def test_derive(self, backend, params):  argument
89     def test_salt_not_bytes(self, backend):  argument
106     def test_scrypt_malloc_failure(self, backend):  argument
126     def test_password_not_bytes(self, backend):  argument
146     def test_buffer_protocol(self, backend):  argument
166     def test_verify(self, backend, params):  argument
186     def test_invalid_verify(self, backend):  argument
207     def test_already_finalized(self, backend):  argument
227     def test_invalid_n(self, backend):  argument
236     def test_invalid_r(self, backend):  argument
240     def test_invalid_p(self, backend):  argument