generated from coulomb/repo-seed
Bernd Worsch
a7eaf59ced
Full TDD implementation of the `bridge` CLI tool covering all phases from BRIDGE-WP-0001: project scaffolding, config loading, state management, audit logging, health checks, tunnel lifecycle manager, and all CLI commands (up/down/restart/status/logs). 77 tests, all green. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
110 lines
3.7 KiB
Python
110 lines
3.7 KiB
Python
"""Tests for TunnelManager."""
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import os
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import signal
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import time
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from pathlib import Path
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from unittest.mock import MagicMock, patch, call
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import pytest
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from bridge.models import BridgeState, ReconnectPolicy, TunnelConfig
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from bridge.manager import TunnelManager, build_ssh_command
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@pytest.fixture
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def tunnel_cfg():
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return TunnelConfig(
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name="test-tunnel",
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host="host.local",
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remote_port=18000,
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local_port=8000,
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ssh_user="ubuntu",
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ssh_key="~/.ssh/id_ops",
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actor="operator.bernd",
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reconnect=ReconnectPolicy(max_attempts=3, backoff_initial=1, backoff_max=5),
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)
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@pytest.fixture
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def state_dir(tmp_path):
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return tmp_path / "bridge"
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class TestBuildSshCommand:
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def test_basic_command(self, tunnel_cfg):
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cmd = build_ssh_command(tunnel_cfg)
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assert cmd[0] == "ssh"
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assert "-N" in cmd
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assert "-R" in cmd
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assert "18000:127.0.0.1:8000" in cmd
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assert "-i" in cmd
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assert "ubuntu@host.local" in cmd
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def test_server_alive_options(self, tunnel_cfg):
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cmd = build_ssh_command(tunnel_cfg)
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assert "-o" in cmd
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assert "ServerAliveInterval=10" in cmd
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assert "ExitOnForwardFailure=yes" in cmd
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def test_ssh_key_expanded(self, tunnel_cfg):
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cmd = build_ssh_command(tunnel_cfg)
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key_idx = cmd.index("-i") + 1
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assert not cmd[key_idx].startswith("~")
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class TestTunnelManager:
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def test_get_state_initial(self, tunnel_cfg, state_dir):
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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assert mgr.get_state() == BridgeState.STOPPED
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def test_stop_when_not_running_is_noop(self, tunnel_cfg, state_dir):
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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# Should not raise
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mgr.stop()
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assert mgr.get_state() == BridgeState.STOPPED
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def test_stop_kills_pid(self, tunnel_cfg, state_dir):
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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# Write a fake PID of our own process to simulate running
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mgr._state.write_pid(tunnel_cfg.name, os.getpid())
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mgr._state.write_state(tunnel_cfg.name, BridgeState.CONNECTED)
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with patch("os.kill") as mock_kill:
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mgr.stop()
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# Should have sent SIGTERM
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mock_kill.assert_any_call(os.getpid(), signal.SIGTERM)
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assert mgr.get_state() == BridgeState.STOPPED
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def test_backoff_calculation(self, tunnel_cfg, state_dir):
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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# First backoff = initial
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assert mgr._next_backoff(0) == 1
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# Doubles each time up to max
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assert mgr._next_backoff(1) == 2
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assert mgr._next_backoff(2) == 4
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assert mgr._next_backoff(3) == 5 # capped at max
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def test_start_daemonizes(self, tunnel_cfg, state_dir):
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"""Verify start() forks without hanging."""
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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# We can't actually fork in tests; verify state transitions via mock
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with patch("subprocess.Popen") as mock_popen, \
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patch("os.fork", return_value=1234) as mock_fork, \
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patch("os.setsid"), \
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patch("os._exit"):
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mock_proc = MagicMock()
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mock_proc.pid = 9999
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mock_popen.return_value = mock_proc
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# When fork returns non-zero we're the parent — just check PID written
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mgr.start()
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# After start the state should be STARTING (set before fork)
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# and PID file should exist (written in parent branch)
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def test_is_running_false_initially(self, tunnel_cfg, state_dir):
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mgr = TunnelManager(tunnel_cfg, state_dir=state_dir)
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assert not mgr.is_running()
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