| #!/usr/bin/env python3 |
| # Copyright 2021 The Pigweed Authors |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| # use this file except in compliance with the License. You may obtain a copy of |
| # the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| # License for the specific language governing permissions and limitations under |
| # the License. |
| """Tests transfers between the Python client and C++ service.""" |
| |
| from pathlib import Path |
| from typing import List, Tuple |
| import tempfile |
| import unittest |
| |
| from pw_hdlc import rpc |
| from pw_rpc import testing |
| from pw_transfer import transfer, transfer_pb2 |
| from pw_transfer_test import test_server_pb2 |
| |
| ITERATIONS = 5 |
| |
| |
| class TransferServiceIntegrationTest(unittest.TestCase): |
| """Tests transfers between the Python client and C++ service.""" |
| test_server_command: Tuple[str, ...] = () |
| port: int |
| directory: Path |
| |
| def setUp(self) -> None: |
| command = (*self.test_server_command, str(self.directory)) |
| self._context = rpc.HdlcRpcLocalServerAndClient( |
| command, self.port, [transfer_pb2, test_server_pb2]) |
| |
| service = self._context.client.channel(1).rpcs.pw.transfer.Transfer |
| self.manager = transfer.Manager(service) |
| |
| self._test_server = self._context.client.channel( |
| 1).rpcs.pw.transfer.TestServer |
| |
| def tearDown(self) -> None: |
| if hasattr(self, '_context'): |
| self._context.close() |
| |
| def transfer_file_path(self, transfer_id: int) -> Path: |
| return self.directory / str(transfer_id) |
| |
| def set_content(self, transfer_id: int, data: str) -> None: |
| self.transfer_file_path(transfer_id).write_text(data) |
| self._test_server.ReloadTransferFiles() |
| |
| def get_content(self, transfer_id: int) -> str: |
| return self.transfer_file_path(transfer_id).read_text() |
| |
| def test_read_empty(self) -> None: |
| self.set_content(24, '') |
| |
| for _ in range(ITERATIONS): |
| self.assertEqual(self.manager.read(24), b'') |
| |
| def test_read_single_byte(self) -> None: |
| self.set_content(25, '0') |
| |
| for _ in range(ITERATIONS): |
| self.assertEqual(self.manager.read(25), b'0') |
| |
| def test_read_small_amount_of_data(self) -> None: |
| self.set_content(26, 'hunter2') |
| |
| for _ in range(ITERATIONS): |
| self.assertEqual(self.manager.read(26), b'hunter2') |
| |
| def test_read_large_amount_of_data(self) -> None: |
| self.set_content(27, '~' * 512) |
| |
| for _ in range(ITERATIONS): |
| self.assertEqual(self.manager.read(27), b'~' * 512) |
| |
| def test_write_empty(self) -> None: |
| self.set_content(28, 'junk') |
| |
| for _ in range(ITERATIONS): |
| self.manager.write(28, b'') |
| self.assertEqual(self.get_content(28), '') |
| |
| def test_write_single_byte(self) -> None: |
| self.set_content(29, 'junk') |
| |
| for _ in range(ITERATIONS): |
| self.manager.write(29, b'$') |
| self.assertEqual(self.get_content(29), '$') |
| |
| def test_write_small_amount_of_data(self) -> None: |
| self.set_content(30, 'junk') |
| |
| for _ in range(ITERATIONS): |
| self.manager.write(30, b'file transfer') |
| self.assertEqual(self.get_content(30), 'file transfer') |
| |
| def test_write_large_amount_of_data(self) -> None: |
| self.set_content(31, 'junk') |
| |
| for _ in range(ITERATIONS): |
| self.manager.write(31, b'*' * 512) |
| self.assertEqual(self.get_content(31), '*' * 512) |
| |
| def test_write_very_large_amount_of_data(self) -> None: |
| self.set_content(31, 'junk') |
| |
| for _ in range(ITERATIONS): |
| # Larger than the transfer service's configured pending_bytes. |
| self.manager.write(31, b'*' * 4096) |
| self.assertEqual(self.get_content(31), '*' * 4096) |
| |
| def test_write_string(self) -> None: |
| self.set_content(32, 'junk') |
| |
| for _ in range(ITERATIONS): |
| # Write a string instead of bytes. |
| self.manager.write(32, 'hello world') |
| self.assertEqual(self.get_content(32), 'hello world') |
| |
| |
| def _main(test_server_command: List[str], port: int, unittest_args: List[str], |
| directory: str) -> None: |
| TransferServiceIntegrationTest.test_server_command = tuple( |
| test_server_command) |
| TransferServiceIntegrationTest.port = port |
| TransferServiceIntegrationTest.directory = Path(directory) |
| |
| unittest.main(argv=unittest_args) |
| |
| |
| if __name__ == '__main__': |
| with tempfile.TemporaryDirectory(prefix='transfer_test_') as tempdir: |
| _main(**vars(testing.parse_test_server_args()), directory=tempdir) |