Files
py-libp2p/tests/interop/nim_libp2p/conftest.py
2025-08-31 06:47:15 +00:00

120 lines
3.6 KiB
Python

import fcntl
import logging
from pathlib import Path
import shutil
import subprocess
import time
import pytest
logger = logging.getLogger(__name__)
def check_nim_available():
"""Check if nim compiler is available."""
return shutil.which("nim") is not None and shutil.which("nimble") is not None
def check_nim_binary_built():
"""Check if nim echo server binary is built."""
current_dir = Path(__file__).parent
binary_path = current_dir / "nim_echo_server"
return binary_path.exists() and binary_path.stat().st_size > 0
def run_nim_setup_with_lock():
"""Run nim setup with file locking to prevent parallel execution."""
current_dir = Path(__file__).parent
lock_file = current_dir / ".setup_lock"
setup_script = current_dir / "scripts" / "setup_nim_echo.sh"
if not setup_script.exists():
raise RuntimeError(f"Setup script not found: {setup_script}")
# Try to acquire lock
try:
with open(lock_file, "w") as f:
# Non-blocking lock attempt
fcntl.flock(f.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB)
# Double-check binary doesn't exist (another worker might have built it)
if check_nim_binary_built():
logger.info("Binary already exists, skipping setup")
return
logger.info("Acquired setup lock, running nim-libp2p setup...")
# Make setup script executable and run it
setup_script.chmod(0o755)
result = subprocess.run(
[str(setup_script)],
cwd=current_dir,
capture_output=True,
text=True,
timeout=300, # 5 minute timeout
)
if result.returncode != 0:
raise RuntimeError(
f"Setup failed (exit {result.returncode}):\n"
f"stdout: {result.stdout}\n"
f"stderr: {result.stderr}"
)
# Verify binary was built
if not check_nim_binary_built():
raise RuntimeError("nim_echo_server binary not found after setup")
logger.info("nim-libp2p setup completed successfully")
except BlockingIOError:
# Another worker is running setup, wait for it to complete
logger.info("Another worker is running setup, waiting...")
# Wait for setup to complete (check every 2 seconds, max 5 minutes)
for _ in range(150): # 150 * 2 = 300 seconds = 5 minutes
if check_nim_binary_built():
logger.info("Setup completed by another worker")
return
time.sleep(2)
raise TimeoutError("Timed out waiting for setup to complete")
finally:
# Clean up lock file
try:
lock_file.unlink(missing_ok=True)
except Exception:
pass
@pytest.fixture(scope="function") # Changed to function scope
def nim_echo_binary():
"""Get nim echo server binary path."""
current_dir = Path(__file__).parent
binary_path = current_dir / "nim_echo_server"
if not binary_path.exists():
pytest.skip(
"nim_echo_server binary not found. "
"Run setup script: ./scripts/setup_nim_echo.sh"
)
return binary_path
@pytest.fixture
async def nim_server(nim_echo_binary):
"""Start and stop nim echo server for tests."""
# Import here to avoid circular imports
# pyrefly: ignore
from test_echo_interop import NimEchoServer
server = NimEchoServer(nim_echo_binary)
try:
peer_id, listen_addr = await server.start()
yield server, peer_id, listen_addr
finally:
await server.stop()