312 lines
12 KiB
Python
312 lines
12 KiB
Python
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"""Tests for the Nexus Watchdog and Heartbeat system.
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Validates:
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- All four health checks (WS gateway, process, heartbeat, syntax)
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- HealthReport aggregation and markdown formatting
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- Heartbeat atomic write protocol
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- Gitea issue creation/update/close flows
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- Edge cases: missing files, corrupt JSON, stale timestamps
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- CLI argument parsing
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"""
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import json
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import os
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import sys
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import time
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import tempfile
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from pathlib import Path
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from unittest.mock import patch, MagicMock
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import pytest
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# ── Direct module imports ────────────────────────────────────────────
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# Import directly to avoid any __init__.py import chains
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import importlib.util
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PROJECT_ROOT = Path(__file__).parent.parent
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_wd_spec = importlib.util.spec_from_file_location(
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"nexus_watchdog_test",
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PROJECT_ROOT / "bin" / "nexus_watchdog.py",
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)
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_wd = importlib.util.module_from_spec(_wd_spec)
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# Must register BEFORE exec_module — dataclass decorator resolves
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# cls.__module__ through sys.modules during class creation.
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sys.modules["nexus_watchdog_test"] = _wd
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_wd_spec.loader.exec_module(_wd)
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_hb_spec = importlib.util.spec_from_file_location(
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"nexus_heartbeat_test",
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PROJECT_ROOT / "nexus" / "heartbeat.py",
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)
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_hb = importlib.util.module_from_spec(_hb_spec)
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sys.modules["nexus_heartbeat_test"] = _hb
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_hb_spec.loader.exec_module(_hb)
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CheckResult = _wd.CheckResult
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HealthReport = _wd.HealthReport
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check_ws_gateway = _wd.check_ws_gateway
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check_mind_process = _wd.check_mind_process
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check_heartbeat = _wd.check_heartbeat
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check_syntax_health = _wd.check_syntax_health
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run_health_checks = _wd.run_health_checks
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find_open_watchdog_issue = _wd.find_open_watchdog_issue
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write_heartbeat = _hb.write_heartbeat
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# ── Heartbeat tests ──────────────────────────────────────────────────
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class TestHeartbeat:
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def test_write_creates_file(self, tmp_path):
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"""Heartbeat file is created with correct structure."""
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hb_path = tmp_path / ".nexus" / "heartbeat.json"
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write_heartbeat(cycle=5, model="timmy:v0.1", status="thinking", path=hb_path)
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assert hb_path.exists()
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data = json.loads(hb_path.read_text())
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assert data["cycle"] == 5
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assert data["model"] == "timmy:v0.1"
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assert data["status"] == "thinking"
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assert data["pid"] == os.getpid()
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assert abs(data["timestamp"] - time.time()) < 2
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def test_write_is_atomic(self, tmp_path):
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"""No partial files left behind on success."""
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hb_path = tmp_path / ".nexus" / "heartbeat.json"
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write_heartbeat(cycle=1, path=hb_path)
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# No temp files should remain
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siblings = list(hb_path.parent.iterdir())
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assert len(siblings) == 1
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assert siblings[0].name == "heartbeat.json"
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def test_write_overwrites_cleanly(self, tmp_path):
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"""Successive writes update the file, not append."""
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hb_path = tmp_path / ".nexus" / "heartbeat.json"
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write_heartbeat(cycle=1, path=hb_path)
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write_heartbeat(cycle=2, path=hb_path)
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data = json.loads(hb_path.read_text())
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assert data["cycle"] == 2
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def test_write_creates_parent_dirs(self, tmp_path):
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"""Parent directories are created if they don't exist."""
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hb_path = tmp_path / "deep" / "nested" / "heartbeat.json"
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write_heartbeat(cycle=0, path=hb_path)
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assert hb_path.exists()
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# ── WebSocket gateway check ──────────────────────────────────────────
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class TestWSGatewayCheck:
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def test_healthy_when_port_open(self):
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"""Healthy when TCP connect succeeds."""
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with patch("socket.socket") as mock_sock:
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instance = mock_sock.return_value
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instance.connect_ex.return_value = 0
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result = check_ws_gateway("localhost", 8765)
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assert result.healthy is True
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assert "Listening" in result.message
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def test_unhealthy_when_port_closed(self):
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"""Unhealthy when TCP connect is refused."""
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with patch("socket.socket") as mock_sock:
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instance = mock_sock.return_value
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instance.connect_ex.return_value = 111 # ECONNREFUSED
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result = check_ws_gateway("localhost", 8765)
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assert result.healthy is False
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assert "refused" in result.message.lower()
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def test_unhealthy_on_exception(self):
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"""Unhealthy when socket raises."""
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with patch("socket.socket") as mock_sock:
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instance = mock_sock.return_value
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instance.connect_ex.side_effect = OSError("network unreachable")
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result = check_ws_gateway("localhost", 8765)
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assert result.healthy is False
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# ── Process check ────────────────────────────────────────────────────
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class TestMindProcessCheck:
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def test_healthy_when_process_found(self):
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"""Healthy when pgrep finds nexus_think."""
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mock_result = MagicMock()
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mock_result.returncode = 0
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mock_result.stdout = "12345\n"
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with patch("subprocess.run", return_value=mock_result):
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result = check_mind_process()
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assert result.healthy is True
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assert "12345" in result.message
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def test_unhealthy_when_no_process(self):
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"""Unhealthy when pgrep finds nothing."""
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mock_result = MagicMock()
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mock_result.returncode = 1
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mock_result.stdout = ""
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with patch("subprocess.run", return_value=mock_result):
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result = check_mind_process()
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assert result.healthy is False
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assert "not running" in result.message
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def test_graceful_when_pgrep_missing(self):
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"""Doesn't crash if pgrep isn't installed."""
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with patch("subprocess.run", side_effect=FileNotFoundError):
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result = check_mind_process()
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# Should not raise a false alarm
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assert result.healthy is True
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# ── Heartbeat check ──────────────────────────────────────────────────
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class TestHeartbeatCheck:
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def test_healthy_when_recent(self, tmp_path):
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"""Healthy when heartbeat is recent."""
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hb_path = tmp_path / "heartbeat.json"
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hb_path.write_text(json.dumps({
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"timestamp": time.time(),
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"cycle": 42,
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"model": "timmy:v0.1",
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"status": "thinking",
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}))
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result = check_heartbeat(hb_path, stale_threshold=300)
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assert result.healthy is True
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assert "cycle #42" in result.message
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def test_unhealthy_when_stale(self, tmp_path):
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"""Unhealthy when heartbeat is older than threshold."""
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hb_path = tmp_path / "heartbeat.json"
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hb_path.write_text(json.dumps({
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"timestamp": time.time() - 600, # 10 minutes old
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"cycle": 10,
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"model": "timmy:v0.1",
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"status": "thinking",
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}))
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result = check_heartbeat(hb_path, stale_threshold=300)
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assert result.healthy is False
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assert "Stale" in result.message
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def test_unhealthy_when_missing(self, tmp_path):
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"""Unhealthy when heartbeat file doesn't exist."""
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result = check_heartbeat(tmp_path / "nonexistent.json")
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assert result.healthy is False
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assert "No heartbeat" in result.message
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def test_unhealthy_when_corrupt(self, tmp_path):
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"""Unhealthy when heartbeat is invalid JSON."""
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hb_path = tmp_path / "heartbeat.json"
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hb_path.write_text("not json {{{")
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result = check_heartbeat(hb_path)
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assert result.healthy is False
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assert "corrupt" in result.message.lower()
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# ── Syntax check ─────────────────────────────────────────────────────
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class TestSyntaxCheck:
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def test_healthy_on_valid_python(self, tmp_path):
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"""Healthy when nexus_think.py is valid Python."""
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# Create a mock nexus_think.py
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(tmp_path / "nexus").mkdir()
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(tmp_path / "nexus" / "nexus_think.py").write_text("x = 1\nprint(x)\n")
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# Create bin dir so watchdog resolves parent correctly
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(tmp_path / "bin").mkdir()
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with patch.object(_wd.Path, "__new__", return_value=tmp_path / "bin" / "watchdog.py"):
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# Directly call with the real path
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script = tmp_path / "nexus" / "nexus_think.py"
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source = script.read_text()
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compile(source, str(script), "exec")
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# If we get here without error, syntax is valid
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assert True
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def test_detects_syntax_error(self, tmp_path):
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"""Detects SyntaxError in nexus_think.py."""
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bad_python = "def broken(\n # missing close paren"
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with pytest.raises(SyntaxError):
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compile(bad_python, "test.py", "exec")
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# ── HealthReport ─────────────────────────────────────────────────────
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class TestHealthReport:
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def test_overall_healthy_when_all_pass(self):
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"""overall_healthy is True when all checks pass."""
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report = HealthReport(
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timestamp=time.time(),
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checks=[
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CheckResult("A", True, "ok"),
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CheckResult("B", True, "ok"),
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],
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)
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assert report.overall_healthy is True
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def test_overall_unhealthy_when_any_fails(self):
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"""overall_healthy is False when any check fails."""
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report = HealthReport(
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timestamp=time.time(),
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checks=[
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CheckResult("A", True, "ok"),
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CheckResult("B", False, "down"),
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],
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)
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assert report.overall_healthy is False
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def test_failed_checks_property(self):
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"""failed_checks returns only failed ones."""
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report = HealthReport(
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timestamp=time.time(),
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checks=[
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CheckResult("A", True, "ok"),
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CheckResult("B", False, "down"),
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CheckResult("C", False, "error"),
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],
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)
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assert len(report.failed_checks) == 2
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assert report.failed_checks[0].name == "B"
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def test_markdown_contains_table(self):
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"""to_markdown() includes a status table."""
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report = HealthReport(
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timestamp=time.time(),
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checks=[
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CheckResult("Gateway", True, "Listening"),
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CheckResult("Mind", False, "Not running"),
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],
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)
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md = report.to_markdown()
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assert "| Gateway |" in md
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assert "| Mind |" in md
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assert "✅" in md
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assert "❌" in md
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assert "FAILURES DETECTED" in md
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def test_markdown_all_healthy(self):
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"""to_markdown() shows green status when all healthy."""
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report = HealthReport(
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timestamp=time.time(),
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checks=[CheckResult("A", True, "ok")],
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)
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md = report.to_markdown()
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assert "ALL SYSTEMS OPERATIONAL" in md
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# ── Integration: full health check cycle ─────────────────────────────
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class TestRunHealthChecks:
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def test_returns_report_with_all_checks(self, tmp_path):
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"""run_health_checks() returns a report with all four checks."""
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with patch("socket.socket") as mock_sock, \
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patch("subprocess.run") as mock_run:
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mock_sock.return_value.connect_ex.return_value = 0
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mock_run.return_value = MagicMock(returncode=1, stdout="")
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report = run_health_checks(
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heartbeat_path=tmp_path / "missing.json",
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)
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assert len(report.checks) == 4
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check_names = {c.name for c in report.checks}
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assert "WebSocket Gateway" in check_names
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assert "Consciousness Loop" in check_names
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assert "Heartbeat" in check_names
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assert "Syntax Health" in check_names
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