"""yuxi.channels.infrastructure.host_bootstrap 单元测试。

覆盖 ``HostBootstrap`` 启动编排行为：
- ``bootstrap`` 入口守卫：重复调用 / 已 ready 时抛 ``InternalError``
- ``_loadConfig``：空 schema 抛 ``ConfigValidationError``、``DependencyError`` 透传、
  超时抛 ``OperationTimeoutError``
- ``_initSchema``：失败透传、超时抛 ``OperationTimeoutError``
- ``_initDrivenAdapters``：``ping()`` 失败抛 ``DependencyError``、
  非 ``PingablePort`` 适配器跳过、空列表返回
- ``_loadPlugins``：discover 失败告警并继续、空 manifest 提前返回
- ``_loadSinglePlugin``：加载失败告警并继续（不阻塞宿主启动）
- ``_rollback``：按 §15.2 逆序回滚已启动组件
- ``bootstrap`` 端到端：成功路径与失败回滚路径

不依赖运行中的 Docker 服务，纯单元测试。
"""

from __future__ import annotations

import asyncio
from unittest.mock import AsyncMock, MagicMock

import pytest
from yuxi.channels.application.extension.config_source_registry import (
    ConfigSourceRegistry,
)
from yuxi.channels.application.extension.event_bus import EventBus
from yuxi.channels.application.extension.event_subscription_registry import (
    EventSubscriptionRegistry,
)
from yuxi.channels.application.extension.stage_slot_registry import StageSlotRegistry
from yuxi.channels.application.health.health_aggregator import HealthAggregator
from yuxi.channels.application.lifecycle.plugin_dependency_resolver import (
    PluginDependencyResolver,
)
from yuxi.channels.application.lifecycle.plugin_lifecycle_manager import (
    PluginLifecycleManager,
)
from yuxi.channels.application.pipeline.stage_slot_injector import StageSlotInjector
from yuxi.channels.application.transport import TransportManager
from yuxi.channels.contract.dtos.lifecycle import LifecycleResult
from yuxi.channels.contract.errors import (
    ConfigValidationError,
    DependencyError,
    InternalError,
    OperationTimeoutError,
)
from yuxi.channels.contract.ports.driven.config_port import ConfigPort
from yuxi.channels.contract.ports.driven.logger_port import LoggerPort
from yuxi.channels.contract.ports.driven.persistence_port import PersistencePort
from yuxi.channels.contract.ports.driven.pingable_port import PingablePort
from yuxi.channels.core.registry.plugin_registry import PluginRegistry
from yuxi.channels.core.registry.route_match_registry import RouteMatchRegistry
from yuxi.channels.core.service.degradation_manager import DegradationManager
from yuxi.channels.infrastructure.dependency_injection import (
    DependencyInjectionContainer,
)
from yuxi.channels.infrastructure.host_bootstrap import HostBootstrap

pytestmark = pytest.mark.unit


# ---------------------------------------------------------------------------
# 测试辅助：构造 HostBootstrap 与桩依赖
# ---------------------------------------------------------------------------


def _make_manifest(plugin_id: str = "test-plugin"):
    """构造测试用 manifest 桩（仅需 ``id`` 属性）。

    使用 ``MagicMock`` 替代真实 ``ChannelManifest``，避免构造 ``provides`` /
    ``capabilities`` / ``config_schema`` 等大量必填字段。测试仅需访问
    ``manifest.id`` 属性。
    """
    manifest = MagicMock()
    manifest.id = plugin_id
    return manifest


def _make_persistence_port_stub() -> MagicMock:
    """构造 ``PersistencePort`` 桩，``listRouteBindings`` 返回空列表。

    ``_loadRouteBindingsFromDB`` 通过 ``RouteMatchRegistryLoader.loadAll``
    调用 ``repo.listRouteBindings(...)``，需返回可 await 的空列表以跳过
    规则加载。
    """
    stub = MagicMock(spec=PersistencePort)
    stub.listRouteBindings = AsyncMock(return_value=[])
    return stub


def _make_bootstrap(
    fake_logger,
    *,
    di_container: DependencyInjectionContainer | None = None,
    config_port: ConfigPort | None = None,
    plugin_lifecycle: PluginLifecycleManager | None = None,
    plugin_registry: PluginRegistry | None = None,
    route_match_registry: RouteMatchRegistry | None = None,
    stage_slot_injector: StageSlotInjector | None = None,
    transport_manager: TransportManager | None = None,
    driving_adapter_registrar=None,
    driving_adapter_unregistrar=None,
    app_driven_adapters=None,
    ensure_schema: object | None = None,
) -> HostBootstrap:
    """构造测试用 HostBootstrap，所有依赖默认为 MagicMock。"""
    if di_container is None:
        di_container = DependencyInjectionContainer()
        # 预注册 _loadRouteBindingsFromDB / _registerCommonCommands 所需依赖
        di_container.registerSingleton(
            RouteMatchRegistry, route_match_registry or RouteMatchRegistry()
        )
        di_container.registerSingleton(PersistencePort, _make_persistence_port_stub())
        di_container.registerSingleton(
            PluginRegistry, plugin_registry or MagicMock(spec=PluginRegistry)
        )
        di_container.registerSingleton(
            PluginLifecycleManager,
            plugin_lifecycle or MagicMock(spec=PluginLifecycleManager),
        )
        from yuxi.channels.core.registry.command_registry import (
            CommandRegistryTable,
        )
        from yuxi.channels.application.lifecycle.sensitive_field_registry import (
            SensitiveFieldRegistry,
        )
        from yuxi.channels.application.lifecycle.config_scope_registry import (
            ConfigScopeRegistry as LifecycleCSR,
        )
        di_container.registerSingleton(CommandRegistryTable, CommandRegistryTable())
        di_container.registerSingleton(SensitiveFieldRegistry, MagicMock())
        di_container.registerSingleton(LifecycleCSR, MagicMock())

    if config_port is None:
        config_port = MagicMock(spec=ConfigPort)

    if ensure_schema is None:
        ensure_schema = MagicMock()

    return HostBootstrap(
        ensure_schema=ensure_schema,
        di_container=di_container,
        plugin_dir="/nonexistent/plugins",
        event_bus=MagicMock(spec=EventBus),
        stage_slot_registry=MagicMock(spec=StageSlotRegistry),
        event_subscription_registry=MagicMock(spec=EventSubscriptionRegistry),
        config_source_registry=MagicMock(spec=ConfigSourceRegistry),
        plugin_lifecycle_manager=plugin_lifecycle or MagicMock(spec=PluginLifecycleManager),
        plugin_dependency_resolver=MagicMock(spec=PluginDependencyResolver),
        stage_slot_injector=stage_slot_injector or MagicMock(spec=StageSlotInjector),
        health_aggregator=MagicMock(spec=HealthAggregator),
        transport_manager=transport_manager or MagicMock(spec=TransportManager),
        logger=fake_logger,
        config_port=config_port,
        driving_adapter_registrar=driving_adapter_registrar,
        driving_adapter_unregistrar=driving_adapter_unregistrar,
        app_driven_adapters=app_driven_adapters,
    )


# ---------------------------------------------------------------------------
# 入口守卫
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestBootstrapEntryGuard:
    """bootstrap() 入口守卫测试。"""

    @pytest.mark.asyncio
    async def test_bootstrap_when_already_ready_raises_internal_error(
        self, fake_logger
    ):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger)
        bootstrap._ready = True

        # Act / Assert
        with pytest.raises(InternalError) as exc_info:
            await bootstrap.bootstrap()

        assert "already bootstrapped" in exc_info.value.message

    @pytest.mark.asyncio
    async def test_bootstrap_when_in_progress_raises_internal_error(
        self, fake_logger
    ):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger)
        bootstrap._bootstrapping = True

        # Act / Assert
        with pytest.raises(InternalError) as exc_info:
            await bootstrap.bootstrap()

        assert "in progress" in exc_info.value.message

    @pytest.mark.asyncio
    async def test_bootstrap_failure_resets_in_progress_flag(self, fake_logger):
        """启动失败后 ``_bootstrapping`` 必须重置，允许调用方重试。"""
        # Arrange
        config_port = MagicMock(spec=ConfigPort)
        # _loadConfig 抛 ConfigValidationError 触发失败路径
        config_port.getSchema = AsyncMock(side_effect=ConfigValidationError(["boom"]))

        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act
        with pytest.raises(ConfigValidationError):
            await bootstrap.bootstrap()

        # Assert: 失败后标志重置，ready 仍为 False
        assert bootstrap._bootstrapping is False
        assert bootstrap.isReady is False


# ---------------------------------------------------------------------------
# _loadConfig
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestLoadConfig:
    """_loadConfig 配置加载测试。"""

    @pytest.mark.asyncio
    async def test_empty_schema_raises_config_validation_error(self, fake_logger):
        # Arrange
        config_port = MagicMock(spec=ConfigPort)
        config_port.getSchema = AsyncMock(return_value=())
        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act / Assert
        with pytest.raises(ConfigValidationError) as exc_info:
            await bootstrap._loadConfig()

        assert "empty" in exc_info.value.message.lower()

    @pytest.mark.asyncio
    async def test_dependency_error_propagates_unchanged(self, fake_logger):
        # Arrange
        config_port = MagicMock(spec=ConfigPort)
        original_err = DependencyError("Redis", RuntimeError("conn refused"))
        config_port.getSchema = AsyncMock(side_effect=original_err)
        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act / Assert
        with pytest.raises(DependencyError) as exc_info:
            await bootstrap._loadConfig()

        assert exc_info.value is original_err

    @pytest.mark.asyncio
    async def test_other_exception_wrapped_as_config_validation_error(
        self, fake_logger
    ):
        # Arrange
        config_port = MagicMock(spec=ConfigPort)
        config_port.getSchema = AsyncMock(side_effect=RuntimeError("unexpected"))
        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act / Assert
        with pytest.raises(ConfigValidationError):
            await bootstrap._loadConfig()

    @pytest.mark.asyncio
    async def test_valid_schema_does_not_raise(self, fake_logger):
        # Arrange
        config_port = MagicMock(spec=ConfigPort)
        config_port.getSchema = AsyncMock(return_value=("field1", "field2"))
        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act / Assert: 不抛异常即成功
        await bootstrap._loadConfig()


# ---------------------------------------------------------------------------
# _initSchema
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestInitSchema:
    """_initSchema schema 初始化测试。"""

    @pytest.mark.asyncio
    async def test_failure_propagates_exception(self, fake_logger):
        # Arrange
        ensure_schema = MagicMock()
        ensure_schema.ensure_channel_schema = AsyncMock(
            side_effect=RuntimeError("db down")
        )
        bootstrap = _make_bootstrap(fake_logger, ensure_schema=ensure_schema)

        # Act / Assert
        with pytest.raises(RuntimeError, match="db down"):
            await bootstrap._initSchema()

    @pytest.mark.asyncio
    async def test_success_does_not_raise(self, fake_logger):
        # Arrange
        ensure_schema = MagicMock()
        ensure_schema.ensure_channel_schema = AsyncMock(return_value=None)
        bootstrap = _make_bootstrap(fake_logger, ensure_schema=ensure_schema)

        # Act / Assert
        await bootstrap._initSchema()


# ---------------------------------------------------------------------------
# _initDrivenAdapters / _pingAdapter
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestInitDrivenAdapters:
    """_initDrivenAdapters / _pingAdapter 连通性检查测试。"""

    @pytest.mark.asyncio
    async def test_empty_adapters_does_not_raise(self, fake_logger):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger, app_driven_adapters=())

        # Act / Assert: 空列表直接返回（向后兼容）
        await bootstrap._initDrivenAdapters()

    @pytest.mark.asyncio
    async def test_none_adapters_does_not_raise(self, fake_logger):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger, app_driven_adapters=None)

        # Act / Assert
        await bootstrap._initDrivenAdapters()

    @pytest.mark.asyncio
    async def test_non_pingable_adapter_skipped(self, fake_logger):
        """未实现 PingablePort 契约的适配器显式跳过。"""
        # Arrange
        non_pingable = MagicMock()  # 不实现 PingablePort
        bootstrap = _make_bootstrap(
            fake_logger, app_driven_adapters=[non_pingable]
        )

        # Act / Assert: 不抛异常即证明跳过逻辑生效
        await bootstrap._initDrivenAdapters()

    @pytest.mark.asyncio
    async def test_ping_returns_false_raises_dependency_error(self, fake_logger):
        # Arrange
        pingable_adapter = MagicMock(spec=PingablePort)
        pingable_adapter.ping = AsyncMock(return_value=False)
        # spec=PingablePort 让 isinstance 检查通过
        bootstrap = _make_bootstrap(
            fake_logger, app_driven_adapters=[pingable_adapter]
        )

        # Act / Assert
        with pytest.raises(DependencyError):
            await bootstrap._initDrivenAdapters()

    @pytest.mark.asyncio
    async def test_ping_raises_exception_wrapped_as_dependency_error(
        self, fake_logger
    ):
        # Arrange
        pingable_adapter = MagicMock(spec=PingablePort)
        pingable_adapter.ping = AsyncMock(side_effect=RuntimeError("conn lost"))
        bootstrap = _make_bootstrap(
            fake_logger, app_driven_adapters=[pingable_adapter]
        )

        # Act / Assert
        with pytest.raises(DependencyError):
            await bootstrap._initDrivenAdapters()

    @pytest.mark.asyncio
    async def test_ping_returns_true_passes(self, fake_logger):
        # Arrange
        pingable_adapter = MagicMock(spec=PingablePort)
        pingable_adapter.ping = AsyncMock(return_value=True)
        bootstrap = _make_bootstrap(
            fake_logger, app_driven_adapters=[pingable_adapter]
        )

        # Act / Assert
        await bootstrap._initDrivenAdapters()


# ---------------------------------------------------------------------------
# _loadPlugins / _loadSinglePlugin
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestLoadPlugins:
    """_loadPlugins 插件加载测试。"""

    @pytest.mark.asyncio
    async def test_discover_failure_warns_and_returns(self, fake_logger):
        """discover 抛异常时记录告警并跳过插件加载（优雅降级）。"""
        # Arrange
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.discover = AsyncMock(side_effect=RuntimeError("disk error"))
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)
        # _loadPlugins 需要 resolve SensitiveFieldRegistry / ConfigScopeRegistry
        # 已在 _make_bootstrap 中预注册

        # Act: 不抛异常即证明 warn-and-continue
        await bootstrap._loadPlugins()

        # Assert: 插件未加载（_plugins_loaded 仍为 False，因 discover 失败提前 return）
        assert bootstrap._plugins_loaded is False
        # 告警日志被调用
        fake_logger.warn.assert_called()

    @pytest.mark.asyncio
    async def test_empty_manifests_returns_early(self, fake_logger):
        # Arrange
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.discover = AsyncMock(return_value=[])
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)

        # Act
        await bootstrap._loadPlugins()

        # Assert: 空 manifest 提前返回，_plugins_loaded 仍为 False
        assert bootstrap._plugins_loaded is False

    @pytest.mark.asyncio
    async def test_single_plugin_load_failure_warns_and_continues(
        self, fake_logger
    ):
        """单个插件 load 失败记录告警并继续，不阻塞宿主启动。"""
        # Arrange
        manifest = _make_manifest("failed-plugin")
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.discover = AsyncMock(return_value=[manifest])
        plugin_lifecycle.load = AsyncMock(
            return_value=LifecycleResult(
                state="failed", error="init error"
            )
        )
        # resolver.resolve 返回原列表（无依赖排序）
        resolver = MagicMock(spec=PluginDependencyResolver)
        resolver.resolve = MagicMock(return_value=[manifest])
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)
        bootstrap._resolver = resolver

        # Act
        await bootstrap._loadPlugins()

        # Assert: _plugins_loaded 置位（步骤完成，含优雅降级）
        assert bootstrap._plugins_loaded is True
        # load 被调用一次
        plugin_lifecycle.load.assert_awaited_once_with("failed-plugin")
        # 告警日志记录失败
        fake_logger.warn.assert_called()

    @pytest.mark.asyncio
    async def test_single_plugin_load_success_logs_info(self, fake_logger):
        # Arrange
        manifest = _make_manifest("ok-plugin")
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.discover = AsyncMock(return_value=[manifest])
        plugin_lifecycle.load = AsyncMock(
            return_value=LifecycleResult(state="started")
        )
        resolver = MagicMock(spec=PluginDependencyResolver)
        resolver.resolve = MagicMock(return_value=[manifest])
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)
        bootstrap._resolver = resolver

        # Act
        await bootstrap._loadPlugins()

        # Assert
        assert bootstrap._plugins_loaded is True
        fake_logger.info.assert_called()


# ---------------------------------------------------------------------------
# _rollback
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestRollback:
    """_rollback 逆序回滚测试。"""

    @pytest.mark.asyncio
    async def test_calls_driving_unregistrar_when_registered(self, fake_logger):
        """_driving_registered=True 且提供 unregistrar 时调用注销回调。"""
        # Arrange
        unregistrar = AsyncMock()
        bootstrap = _make_bootstrap(
            fake_logger, driving_adapter_unregistrar=unregistrar
        )
        bootstrap._driving_registered = True

        # Act
        await bootstrap._rollback()

        # Assert
        unregistrar.assert_awaited_once()

    @pytest.mark.asyncio
    async def test_skips_driving_unregistrar_when_not_registered(self, fake_logger):
        """_driving_registered=False 时不调用注销回调。"""
        # Arrange
        unregistrar = AsyncMock()
        bootstrap = _make_bootstrap(
            fake_logger, driving_adapter_unregistrar=unregistrar
        )
        bootstrap._driving_registered = False

        # Act
        await bootstrap._rollback()

        # Assert
        unregistrar.assert_not_awaited()

    @pytest.mark.asyncio
    async def test_skips_driving_unregistrar_when_none(self, fake_logger):
        """driving_adapter_unregistrar=None 时跳过注销步骤。"""
        # Arrange
        bootstrap = _make_bootstrap(fake_logger, driving_adapter_unregistrar=None)
        bootstrap._driving_registered = True

        # Act / Assert: 不抛异常即证明 None 路径安全
        await bootstrap._rollback()

    @pytest.mark.asyncio
    async def test_stops_plugins_when_loaded(self, fake_logger):
        """_plugins_loaded=True 时调用 stopAllStartedPlugins。"""
        # Arrange
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.stopAllStartedPlugins = AsyncMock()
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)
        bootstrap._plugins_loaded = True

        # Act
        await bootstrap._rollback()

        # Assert
        plugin_lifecycle.stopAllStartedPlugins.assert_awaited_once()

    @pytest.mark.asyncio
    async def test_skips_stop_plugins_when_not_loaded(self, fake_logger):
        # Arrange
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.stopAllStartedPlugins = AsyncMock()
        bootstrap = _make_bootstrap(fake_logger, plugin_lifecycle=plugin_lifecycle)
        bootstrap._plugins_loaded = False

        # Act
        await bootstrap._rollback()

        # Assert
        plugin_lifecycle.stopAllStartedPlugins.assert_not_awaited()

    @pytest.mark.asyncio
    async def test_driving_unregistrar_failure_does_not_block_subsequent_steps(
        self, fake_logger
    ):
        """注销回调抛异常时记录告警并继续后续回滚步骤（INV-9）。"""
        # Arrange
        unregistrar = AsyncMock(side_effect=RuntimeError("unreg failed"))
        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.stopAllStartedPlugins = AsyncMock()
        bootstrap = _make_bootstrap(
            fake_logger,
            plugin_lifecycle=plugin_lifecycle,
            driving_adapter_unregistrar=unregistrar,
        )
        bootstrap._driving_registered = True
        bootstrap._plugins_loaded = True

        # Act: 不抛异常即证明后续步骤继续执行
        await bootstrap._rollback()

        # Assert: 后续 stopAllStartedPlugins 仍被调用
        unregistrar.assert_awaited_once()
        plugin_lifecycle.stopAllStartedPlugins.assert_awaited_once()
        fake_logger.error.assert_called()

    @pytest.mark.asyncio
    async def test_cancels_background_tasks(self, fake_logger):
        """回滚时取消已启动的后台任务。"""
        # Arrange
        bootstrap = _make_bootstrap(fake_logger)
        task1 = asyncio.create_task(asyncio.sleep(100))
        task2 = asyncio.create_task(asyncio.sleep(100))
        bootstrap._plugin_reload_task = task1
        bootstrap._transport_manager_task = task2

        # Act
        await bootstrap._rollback()
        # _cancelBackgroundTasks 仅调度取消（同步），需让事件循环处理取消完成
        await asyncio.sleep(0)

        # Assert: 任务被取消
        assert task1.cancelled() or task1.done()
        assert task2.cancelled() or task2.done()


# ---------------------------------------------------------------------------
# bootstrap 端到端（happy path）
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestBootstrapHappyPath:
    """bootstrap() 成功路径测试。"""

    @pytest.mark.asyncio
    async def test_full_bootstrap_marks_ready(self, fake_logger):
        """成功路径：所有步骤完成 → isReady=True。"""
        # Arrange: 构造所有依赖的桩，配置为成功路径
        config_port = MagicMock(spec=ConfigPort)
        config_port.getSchema = AsyncMock(return_value=("field1",))

        ensure_schema = MagicMock()
        ensure_schema.ensure_channel_schema = AsyncMock(return_value=None)

        plugin_lifecycle = MagicMock(spec=PluginLifecycleManager)
        plugin_lifecycle.discover = AsyncMock(return_value=[])
        # reloadLoop 返回的协程需长时间挂起以模拟后台任务
        plugin_lifecycle.reloadLoop = MagicMock(return_value=self._endless_coro())

        transport_manager = MagicMock(spec=TransportManager)
        transport_manager.start = MagicMock(return_value=self._endless_coro())

        stage_slot_injector = MagicMock(spec=StageSlotInjector)
        stage_slot_injector.validateAnchors = MagicMock()

        bootstrap = _make_bootstrap(
            fake_logger,
            config_port=config_port,
            plugin_lifecycle=plugin_lifecycle,
            stage_slot_injector=stage_slot_injector,
            transport_manager=transport_manager,
            app_driven_adapters=(),
        )
        bootstrap._ensure_schema = ensure_schema

        # Act
        await bootstrap.bootstrap()

        # Assert
        assert bootstrap.isReady is True
        # 后台任务引用已填充
        assert bootstrap.pluginReloadTask is not None
        assert bootstrap.transportManagerTask is not None

        # 清理：取消后台任务避免泄漏到后续测试
        bootstrap.pluginReloadTask.cancel()
        bootstrap.transportManagerTask.cancel()
        try:
            await bootstrap.pluginReloadTask
        except (asyncio.CancelledError, Exception):
            pass
        try:
            await bootstrap.transportManagerTask
        except (asyncio.CancelledError, Exception):
            pass

    @staticmethod
    def _endless_coro():
        """构造一个长时间挂起的协程，模拟后台任务。"""
        return asyncio.sleep(1000)

    @pytest.mark.asyncio
    async def test_bootstrap_failure_triggers_rollback(self, fake_logger):
        """关键步骤失败时触发 _rollback，异常向上抛出。"""
        # Arrange: 让 _loadConfig 抛 ConfigValidationError
        config_port = MagicMock(spec=ConfigPort)
        config_port.getSchema = AsyncMock(
            side_effect=ConfigValidationError(["bad config"])
        )
        bootstrap = _make_bootstrap(fake_logger, config_port=config_port)

        # Act / Assert
        with pytest.raises(ConfigValidationError):
            await bootstrap.bootstrap()

        # 失败后 ready 仍为 False
        assert bootstrap.isReady is False


# ---------------------------------------------------------------------------
# 后台任务启动探测
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestStartBackgroundTask:
    """_startBackgroundTask 启动即失败探测测试。"""

    @pytest.mark.asyncio
    async def test_task_immediate_failure_raises_dependency_error(
        self, fake_logger
    ):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger)

        async def _fail_immediately() -> None:
            raise RuntimeError("startup boom")

        # Act / Assert: 任务在探测窗口内失败，包装为 DependencyError
        with pytest.raises(DependencyError):
            await bootstrap._startBackgroundTask(
                _fail_immediately(),
                name="test_task",
                log_message="should not see this",
            )

    @pytest.mark.asyncio
    async def test_long_running_task_returns_successfully(self, fake_logger):
        # Arrange
        bootstrap = _make_bootstrap(fake_logger)

        async def _long_running() -> None:
            await asyncio.sleep(100)

        # Act
        task = await bootstrap._startBackgroundTask(
            _long_running(),
            name="test_task",
            log_message="task started",
        )

        # Assert
        assert not task.done()
        task.cancel()
        try:
            await task
        except (asyncio.CancelledError, Exception):
            pass


# ---------------------------------------------------------------------------
# isReady / pluginReloadTask / transportManagerTask 属性
# ---------------------------------------------------------------------------


@pytest.mark.unit
class TestProperties:
    """isReady / pluginReloadTask / transportManagerTask 属性测试。"""

    def test_is_ready_default_false(self, fake_logger):
        bootstrap = _make_bootstrap(fake_logger)
        assert bootstrap.isReady is False

    def test_plugin_reload_task_default_none(self, fake_logger):
        bootstrap = _make_bootstrap(fake_logger)
        assert bootstrap.pluginReloadTask is None

    def test_transport_manager_task_default_none(self, fake_logger):
        bootstrap = _make_bootstrap(fake_logger)
        assert bootstrap.transportManagerTask is None