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############################################################################
# Copyright(c) Open Law Library. All rights reserved. #
# See ThirdPartyNotices.txt in the project root for additional notices. #
# #
# 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 #
# #
# http: // 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. #
############################################################################
import asyncio
import pathlib
import sys
from typing import Union
import pytest
from pygls import IS_PYODIDE
from pygls.client import JsonRPCClient
from pygls.exceptions import JsonRpcException, PyglsError
SERVERS = pathlib.Path(__file__).parent / "servers"
@pytest.mark.asyncio
@pytest.mark.skipif(IS_PYODIDE, reason="Subprocesses are not available on pyodide.")
async def test_client_detect_server_exit():
"""Ensure that the client detects when the server process exits."""
class TestClient(JsonRPCClient):
server_exit_called = False
async def server_exit(self, server: asyncio.subprocess.Process):
self.server_exit_called = True
assert server.returncode == 0
client = TestClient()
await client.start_io(sys.executable, "-c", "print('Hello, World!')")
await asyncio.sleep(1)
await client.stop()
message = "Expected the `server_exit` method to have been called."
assert client.server_exit_called, message
@pytest.mark.asyncio
@pytest.mark.skipif(IS_PYODIDE, reason="Subprocesses are not available on pyodide.")
async def test_client_detect_invalid_json():
"""Ensure that the client can detect the case where the server returns invalid
json."""
class TestClient(JsonRPCClient):
report_error_called = False
future = None
def report_server_error(
self, error: Exception, source: Union[PyglsError, JsonRpcException]
):
self.report_error_called = True
self.future.cancel()
self._server.kill()
self._stop_event.set()
assert "Unterminated string" in str(error)
client = TestClient()
await client.start_io(sys.executable, str(SERVERS / "invalid_json.py"))
future = client.protocol.send_request_async("method/name", {})
client.future = future
try:
await future
except asyncio.CancelledError:
pass # Ignore the exception generated by cancelling the future
finally:
await client.stop()
assert_message = "Expected `report_server_error` to have been called"
assert client.report_error_called, assert_message
@pytest.mark.asyncio
@pytest.mark.skipif(IS_PYODIDE, reason="Subprocesses are not available on pyodide.")
async def test_client_large_responses():
"""Ensure that the client can correctly handle large responses from a server."""
client = JsonRPCClient()
await client.start_io(sys.executable, str(SERVERS / "large_response.py"))
result = await client.protocol.send_request_async("get/numbers", {}, msg_id=1)
assert len(result.numbers) == 100_000
await client.stop()
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