24     def test_invalid_key(self, backend):  argument
56     def test_already_finalized(self, backend):  argument
110     def test_key_length(self, backend):  argument
127     def test_rlen(self, backend):  argument
142     def test_r_type(self, backend):  argument
157     def test_l_type(self, backend):  argument
172     def test_l(self, backend):  argument
187     def test_unsupported_mode(self, backend):  argument
202     def test_unsupported_location(self, backend):  argument
217     def test_unsupported_parameters(self, backend):  argument
232     def test_unsupported_hash(self, backend):  argument
247     def test_unsupported_algorithm(self, backend):  argument
262     def test_invalid_backend(self, backend):  argument
277     def test_unicode_error_label(self, backend):  argument
291     def test_unicode_error_context(self, backend):  argument
306     def test_unicode_error_key_material(self, backend):  argument
322     def test_buffer_protocol(self, backend):  argument