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# Copyright 2017-2020 Palantir Technologies, Inc.
# Copyright 2021- Python Language Server Contributors.
import os
import sys
import time
import pytest
from flaky import flaky
from pylsp_jsonrpc.exceptions import JsonRpcMethodNotFound
from test.test_utils import ClientServerPair, send_initialize_request
RUNNING_IN_CI = bool(os.environ.get("CI"))
CALL_TIMEOUT_IN_SECONDS = 10
@pytest.fixture
def client_exited_server() -> None:
"""A fixture that sets up a client/server pair that support checking parent process aliveness
and assert the server has already exited
"""
client_server_pair_obj = ClientServerPair(True, True)
yield client_server_pair_obj
assert client_server_pair_obj.server_process.is_alive() is False
@flaky(max_runs=10, min_passes=1)
@pytest.mark.skipif(sys.platform == "darwin", reason="Too flaky on Mac")
def test_initialize(client_server_pair) -> None:
client, _ = client_server_pair
response = client._endpoint.request(
"initialize",
{"rootPath": os.path.dirname(__file__), "initializationOptions": {}},
).result(timeout=CALL_TIMEOUT_IN_SECONDS)
assert "capabilities" in response
@flaky(max_runs=10, min_passes=1)
@pytest.mark.skipif(
not sys.platform.startswith("Linux"), reason="Skipped on win and flaky on mac"
)
def test_exit_with_parent_process_died(
client_exited_server,
) -> None:
# language server should have already exited before responding
lsp_server, mock_process = (
client_exited_server.client,
client_exited_server.server_process,
)
# with pytest.raises(Exception):
lsp_server._endpoint.request(
"initialize",
{
"processId": mock_process.pid,
"rootPath": os.path.dirname(__file__),
"initializationOptions": {},
},
).result(timeout=CALL_TIMEOUT_IN_SECONDS)
mock_process.terminate()
time.sleep(CALL_TIMEOUT_IN_SECONDS)
assert not client_exited_server.client_thread.is_alive()
@flaky(max_runs=10, min_passes=1)
@pytest.mark.skipif(sys.platform.startswith("linux"), reason="Fails on linux")
def test_not_exit_without_check_parent_process_flag(
client_server_pair,
) -> None:
client, _ = client_server_pair
response = send_initialize_request(client)
assert "capabilities" in response
@flaky(max_runs=10, min_passes=1)
@pytest.mark.skipif(RUNNING_IN_CI, reason="This test is hanging on CI")
def test_missing_message(client_server_pair) -> None:
client, _ = client_server_pair
with pytest.raises(JsonRpcMethodNotFound):
client._endpoint.request("unknown_method").result(
timeout=CALL_TIMEOUT_IN_SECONDS
)
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