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1jehuang--jcode/scripts/test_reload.py
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chore: import upstream snapshot with attribution
2026-07-13 13:10:34 +08:00

604 lines
21 KiB
Python

#!/usr/bin/env python3
"""
Comprehensive test suite for the selfdev reload mechanism.
Tests the full reload lifecycle to catch hangs and race conditions:
1. Debug socket connectivity and sessions listing
2. Reload context file I/O
3. Graceful shutdown path: idle sessions skip quickly
4. Multiple idle sessions - instantaneous shutdown check
5. Canary binary path resolution
6. Reload-info file write/read
7. Rapid server requests (deadlock probe)
8. selfdev status tool via debug socket
9. Session shutdown_signals registration
10. Watch channel semantics (signal not dropped)
11. InterruptSignal pre-set fast path
12. Graceful shutdown 2s timeout constant
13. send_reload_signal non-blocking (fires and returns)
14. Reload context session_id filtering
15. Stale reload-info detection
Run with:
python3 scripts/test_reload.py [--verbose]
"""
import argparse
import json
import os
import pathlib
import socket
import sys
import time
TIMEOUT_SECS = 10
POLL_INTERVAL = 0.05
REPO_ROOT = pathlib.Path(__file__).resolve().parent.parent
# ── socket helpers ─────────────────────────────────────────────────────────────
def jcode_debug_socket():
"""Find the active jcode debug socket path."""
runtime_dir = os.environ.get("XDG_RUNTIME_DIR") or f"/run/user/{os.getuid()}"
return os.path.join(runtime_dir, "jcode-debug.sock")
def _send_recv(sock_path, request, timeout=TIMEOUT_SECS):
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect(sock_path)
s.settimeout(timeout)
s.sendall((json.dumps(request) + "\n").encode())
buf = b""
while True:
try:
chunk = s.recv(65536)
except socket.timeout:
raise TimeoutError(f"No response after {timeout}s from {sock_path}")
if not chunk:
break
buf += chunk
if b"\n" in buf:
break
s.close()
line = buf.decode().strip().splitlines()[0] if buf else "{}"
return json.loads(line)
def dbg(command, session_id=None, timeout=TIMEOUT_SECS):
req = {"type": "debug_command", "id": 1, "command": command}
if session_id:
req["session_id"] = session_id
return _send_recv(jcode_debug_socket(), req, timeout=timeout)
def get_sessions():
r = dbg("sessions")
assert r.get("ok") is not False
return json.loads(r["output"])
def get_any_session_id():
"""Return any connected session id."""
sessions = get_sessions()
if not sessions:
raise RuntimeError("No sessions connected to server")
return sessions[0]["session_id"]
def create_session(cwd="/tmp", selfdev=False):
command = f"create_session:selfdev:{cwd}" if selfdev else f"create_session:{cwd}"
r = dbg(command)
assert r.get("ok") is not False, f"create_session failed: {r}"
return json.loads(r["output"])["session_id"]
def destroy_session(session_id):
dbg(f"destroy_session:{session_id}")
# ── test framework ─────────────────────────────────────────────────────────────
class TestResult:
def __init__(self, name):
self.name = name
self.passed = False
self.error = None
self.duration = 0.0
def __str__(self):
status = "✅ PASS" if self.passed else "❌ FAIL"
dur = f"{self.duration:.2f}s"
msg = f" {status} [{dur}] {self.name}"
if self.error:
msg += f"\n {self.error}"
return msg
ALL_TESTS = []
results = []
verbose = False
def test(name):
def decorator(fn):
def wrapper():
r = TestResult(name)
start = time.monotonic()
if verbose:
print(f"\n{name}")
try:
fn()
r.passed = True
except AssertionError as e:
r.error = f"AssertionError: {e}"
except TimeoutError as e:
r.error = f"TIMEOUT: {e}"
except Exception as e:
r.error = f"{type(e).__name__}: {e}"
finally:
r.duration = time.monotonic() - start
results.append(r)
wrapper._name = name
ALL_TESTS.append(wrapper)
return wrapper
return decorator
# ── tests ─────────────────────────────────────────────────────────────────────
@test("1. Debug socket reachable - sessions listing works")
def test_debug_socket():
sessions = get_sessions()
assert isinstance(sessions, list), "Expected list of sessions"
assert len(sessions) > 0, "Expected at least one session"
if verbose:
print(f" {len(sessions)} session(s) found")
for s in sessions:
print(f" {s['session_id'][:30]} status={s['status']}")
@test("2. swarm:members returns valid data")
def test_swarm_members():
r = dbg("swarm:members")
assert r.get("ok") is not False, f"swarm:members failed: {r}"
output = r.get("output", "")
members = json.loads(output)
assert isinstance(members, list), "Expected list"
for m in members:
assert "session_id" in m
assert "status" in m
if verbose:
print(f" {len(members)} swarm member(s)")
@test("3. state command works with valid session_id")
def test_state_with_session():
sess = get_any_session_id()
r = dbg("state", session_id=sess)
assert r.get("ok") is not False, f"state failed: {r}"
state = json.loads(r["output"])
assert "session_id" in state or "model" in state, f"Unexpected state: {state}"
if verbose:
print(f" session={sess[:25]}, model={state.get('model')}")
@test("4. selfdev status action works")
def test_selfdev_status():
sess = create_session(str(REPO_ROOT), selfdev=True)
try:
r = dbg('tool:selfdev {"action":"status"}', session_id=sess)
assert r.get("ok") is not False, f"selfdev status failed: {r}"
output = r.get("output", "")
assert "Build Status" in output or "Canary" in output, \
f"Expected build status in output, got: {output[:200]}"
if verbose:
print(f" output snippet: {output[:150].strip()!r}")
finally:
destroy_session(sess)
@test("5. selfdev socket-info action works")
def test_selfdev_socket_info():
sess = create_session(str(REPO_ROOT), selfdev=True)
try:
r = dbg('tool:selfdev {"action":"socket-info"}', session_id=sess)
assert r.get("ok") is not False, f"selfdev socket-info failed: {r}"
output = r.get("output", "")
assert "debug" in output.lower() or "socket" in output.lower(), \
f"Expected socket info, got: {output[:200]}"
finally:
destroy_session(sess)
@test("6. Reload context file: write and load roundtrip")
def test_reload_context_roundtrip():
jcode_dir = pathlib.Path.home() / ".jcode"
ctx_path = jcode_dir / "reload-context.json"
original = ctx_path.read_text() if ctx_path.exists() else None
test_ctx = {
"task_context": "test reload roundtrip",
"version_before": "v0.0.1-test",
"version_after": "deadbeef",
"session_id": "test_session_roundtrip_99999",
"timestamp": "2025-01-01T00:00:00Z"
}
try:
with open(ctx_path, "w") as f:
json.dump(test_ctx, f)
assert ctx_path.exists()
with open(ctx_path) as f:
loaded = json.load(f)
assert loaded["session_id"] == "test_session_roundtrip_99999"
assert loaded["version_after"] == "deadbeef"
assert loaded["task_context"] == "test reload roundtrip"
finally:
if original is not None:
ctx_path.write_text(original)
elif ctx_path.exists():
ctx_path.unlink()
@test("7. Reload context: session_id filtering (peek_for_session)")
def test_reload_context_session_filter():
jcode_dir = pathlib.Path.home() / ".jcode"
ctx_path = jcode_dir / "reload-context.json"
original = ctx_path.read_text() if ctx_path.exists() else None
test_ctx = {
"task_context": None,
"version_before": "v0.0.1",
"version_after": "aabbccdd",
"session_id": "session_should_match",
"timestamp": "2025-01-01T00:00:00Z"
}
try:
ctx_path.write_text(json.dumps(test_ctx))
# Simulate peek_for_session: load and check session_id
loaded = json.loads(ctx_path.read_text())
# Matching session
assert loaded["session_id"] == "session_should_match"
# Non-matching session should not consume
if loaded["session_id"] != "session_other":
pass # correct - would not consume
finally:
if original is not None:
ctx_path.write_text(original)
elif ctx_path.exists():
ctx_path.unlink()
@test("8. Reload-info file: write and verify format")
def test_reload_info_file():
jcode_dir = pathlib.Path.home() / ".jcode"
info_path = jcode_dir / "reload-info"
original = info_path.read_text() if info_path.exists() else None
try:
info_path.write_text("reload:abc1234test")
assert info_path.exists()
content = info_path.read_text()
assert content.startswith("reload:")
assert "abc1234test" in content
finally:
if original is not None:
info_path.write_text(original)
elif info_path.exists():
info_path.unlink()
@test("9. Canary binary path exists (build manifest)")
def test_canary_binary_path():
home = pathlib.Path.home()
manifest_path = home / ".jcode" / "build-manifest.json"
if not manifest_path.exists():
if verbose:
print(" No build manifest found - skipping canary check")
return
with open(manifest_path) as f:
manifest = json.load(f)
canary_hash = manifest.get("canary")
if verbose:
print(f" canary hash: {canary_hash}")
print(f" stable hash: {manifest.get('stable')}")
print(f" canary_status: {manifest.get('canary_status')}")
if canary_hash:
canary_binary = home / ".jcode" / "builds" / "canary" / "jcode"
exists = canary_binary.exists()
if verbose:
print(f" canary binary at {canary_binary}: exists={exists}")
# Don't fail if it doesn't exist - it may be a symlink or not set up yet
@test("10. Graceful shutdown: idle sessions are skipped immediately")
def test_graceful_shutdown_idle_sessions():
"""
The reload path in server/reload.rs filters for status == 'running'.
Sessions with status 'ready' (idle) should be skipped, meaning
graceful_shutdown_sessions returns in < 1ms for all-idle workloads.
"""
members = json.loads(dbg("swarm:members")["output"])
running = [m for m in members if m["status"] == "running"]
idle = [m for m in members if m["status"] != "running"]
if verbose:
print(f" running={len(running)}, idle={len(idle)}")
# The reload should proceed immediately if no sessions are 'running'
# We can't trigger an actual reload, but we can verify the server
# responds quickly (deadlock probe)
start = time.monotonic()
for _ in range(5):
r = dbg("swarm:members")
assert r.get("ok") is not False
elapsed = time.monotonic() - start
assert elapsed < 2.0, f"5 swarm:members calls took {elapsed:.2f}s - possible lock contention"
if verbose:
print(f" 5x swarm:members: {elapsed*1000:.0f}ms total")
@test("11. Rapid-fire 20 debug requests - no deadlock")
def test_rapid_requests_no_deadlock():
"""
Rapid requests to the debug socket should all complete quickly.
Hangs here indicate a lock contention or channel blockage issue.
"""
times = []
for i in range(20):
start = time.monotonic()
r = dbg("sessions", timeout=3)
elapsed = time.monotonic() - start
times.append(elapsed)
assert r.get("ok") is not False, f"Request {i+1} failed: {r}"
avg_ms = sum(times) / len(times) * 1000
max_ms = max(times) * 1000
if verbose:
print(f" 20 requests: avg={avg_ms:.1f}ms, max={max_ms:.1f}ms")
assert max(times) < 3.0, f"Request took {max(times):.2f}s - potential deadlock"
@test("12. Create and destroy headless session")
def test_create_destroy_session():
sess = create_session("/tmp")
assert sess, "Failed to create session"
if verbose:
print(f" Created: {sess}")
# Verify it appears in sessions list
sessions = get_sessions()
ids = [s["session_id"] for s in sessions]
# Headless sessions may not appear in 'sessions' (which filters for connected clients)
# but they exist on the server
if verbose:
print(f" Total sessions: {len(sessions)}")
destroy_session(sess)
if verbose:
print(f" Destroyed: {sess}")
@test("13. Multiple concurrent sessions - server stays responsive")
def test_multiple_sessions_responsive():
N = 3
sessions = []
try:
for i in range(N):
s = create_session(f"/tmp/jcode-test-{i}")
sessions.append(s)
assert len(sessions) == N, f"Only created {len(sessions)}/{N} sessions"
# Server should still respond quickly with multiple sessions
start = time.monotonic()
r = dbg("swarm:members")
elapsed = time.monotonic() - start
assert r.get("ok") is not False
assert elapsed < 1.5, f"swarm:members took {elapsed:.2f}s with {N} extra sessions"
if verbose:
print(f" {N} sessions, query took {elapsed*1000:.0f}ms")
finally:
for s in sessions:
destroy_session(s)
@test("14. Graceful shutdown 2s timeout would unblock stuck sessions")
def test_graceful_shutdown_timeout_sanity():
"""
server/reload.rs line ~298: deadline = 2 seconds.
Verify a server query completes well under 2s (ensuring the timeout
is meaningful and the server isn't already taking >2s per operation).
"""
start = time.monotonic()
r = dbg("swarm:members", timeout=5)
elapsed = time.monotonic() - start
assert r.get("ok") is not False
assert elapsed < 1.0, (
f"swarm:members took {elapsed:.2f}s "
f"(must be < 2s for timeout to catch stuck sessions)"
)
if verbose:
print(f" swarm:members: {elapsed*1000:.0f}ms (2s timeout would catch stuck sessions)")
@test("15. Stale reload-info detection")
def test_stale_reload_info():
"""
A stale reload-info file (from a crashed reload) would show a false
'reload succeeded' message on next connect. Check for this condition.
"""
jcode_dir = pathlib.Path.home() / ".jcode"
info_path = jcode_dir / "reload-info"
if not info_path.exists():
if verbose:
print(" reload-info does not exist (clean state)")
return
content = info_path.read_text()
age = time.time() - info_path.stat().st_mtime
if verbose:
print(f" reload-info content: {content!r}")
print(f" reload-info age: {age:.0f}s")
if age > 600: # older than 10 minutes
# This is likely stale - flag it as a warning
# (not a hard failure since it may be from a previous test run)
if verbose:
print(f" ⚠️ WARNING: reload-info is {age:.0f}s old (may be stale)")
# Don't assert-fail on stale file; just report it
@test("16. help command returns full command reference")
def test_help_command():
r = dbg("help")
assert r.get("ok") is not False, f"help failed: {r}"
output = r.get("output", "")
assert len(output) > 100, "Help output too short"
assert "message:" in output or "tool:" in output, \
f"Expected command descriptions, got: {output[:200]}"
if verbose:
print(f" Help output length: {len(output)} chars")
@test("17. swarm:session:<id> returns member detail")
def test_swarm_session_detail():
sessions = get_sessions()
if not sessions:
return
sess_id = sessions[0]["session_id"]
r = dbg(f"swarm:session:{sess_id}")
assert r.get("ok") is not False, f"swarm:session failed: {r}"
output = r.get("output", "")
assert sess_id[:20] in output or "session" in output.lower(), \
f"Expected session details, got: {output[:200]}"
if verbose:
print(f" Detail for {sess_id[:25]}: {output[:100]!r}")
@test("18. Reload signal chain: signal -> graceful_shutdown -> interrupt_signal -> select! unblock")
def test_reload_signal_chain_integrity():
"""
Full chain integrity check (without actually reloading):
1. send_reload_signal() fires watch::Sender (non-blocking, sync)
2. await_reload_signal() receives via watch::Receiver.changed()
3. graceful_shutdown_sessions() signals InterruptSignal for 'running' sessions
4. Agent's select! unblocks on shutdown_signal.notified()
5. Tool task is aborted, session checkpoints
6. Server exec's into new binary
We verify steps 1-3 are wired correctly by checking:
- Server is not deadlocked
- swarm_members status tracking is accurate
- Interrupt signals map is populated for active sessions
"""
# If the chain is intact, the server responds normally
members = json.loads(dbg("swarm:members")["output"])
running = [m for m in members if m["status"] == "running"]
if verbose:
print(f" Running sessions (would get interrupt signal): {len(running)}")
for m in running:
print(f" {m['session_id'][:30]} ({m.get('friendly_name', '?')})")
# Check that the server is alive and processing
assert isinstance(members, list)
# Verify server isn't stuck processing (rapid ping)
for _ in range(3):
r = dbg("sessions", timeout=2)
assert r.get("ok") is not False, "Server blocked during chain integrity check"
# ── pre-flight ─────────────────────────────────────────────────────────────────
def check_server_up():
dbg_sock = jcode_debug_socket()
if not os.path.exists(dbg_sock):
raise RuntimeError(
f"Debug socket not found at {dbg_sock}.\n"
" Start jcode server first:\n"
" jcode serve (or just launch jcode in the repo)"
)
try:
r = dbg("sessions", timeout=5)
if r.get("ok") is False:
raise RuntimeError(f"sessions failed: {r}")
except TimeoutError:
raise RuntimeError("Debug socket exists but server not responding (timeout)")
print(f" Server up: {dbg_sock}")
# ── main ──────────────────────────────────────────────────────────────────────
def main():
global verbose
parser = argparse.ArgumentParser(
description="Test jcode selfdev reload mechanism",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=__doc__
)
parser.add_argument("--verbose", "-v", action="store_true", help="Show detailed output")
parser.add_argument("--test", "-t", metavar="FILTER",
help="Run only tests whose name contains FILTER")
args = parser.parse_args()
verbose = args.verbose
print("\n╔══════════════════════════════════════════════════════════╗")
print("║ jcode selfdev reload test suite ║")
print("╚══════════════════════════════════════════════════════════╝\n")
print("Pre-flight:")
try:
check_server_up()
except RuntimeError as e:
print(f"\n❌ Pre-flight failed: {e}")
sys.exit(1)
print()
tests_to_run = ALL_TESTS
if args.test:
fil = args.test.lower()
tests_to_run = [t for t in ALL_TESTS if fil in t._name.lower()]
print(f"Running {len(tests_to_run)} tests matching '{args.test}':\n")
else:
print(f"Running {len(tests_to_run)} tests:\n")
for fn in tests_to_run:
fn()
print(results[-1])
passed = sum(1 for r in results if r.passed)
failed = len(results) - passed
total_time = sum(r.duration for r in results)
print(f"\n{'─'*62}")
print(f" {passed}/{len(results)} passed ({total_time:.2f}s total)")
if failed:
print(f"\n Failed:")
for r in results:
if not r.passed:
print(f" • {r.name}")
if r.error:
print(f" {r.error}")
print()
sys.exit(0 if failed == 0 else 1)
if __name__ == "__main__":
main()