diff --git a/tests/test_sse.py b/tests/test_sse.py
new file mode 100644
index 0000000..1530397
--- /dev/null
+++ b/tests/test_sse.py
@@ -0,0 +1,259 @@
+"""F17 SSE + Hook 单元测试
+
+按 test-plan-v2.6.md §F17：
+- T1: SSE 事件推送（P0）
+- T2: Hook 注册/触发（P0）
+- T3: 回调 Hook（P0）
+- T4: 错误处理（P1）
+"""
+
+import asyncio
+import json
+import pytest
+from unittest.mock import AsyncMock, MagicMock
+
+from src.daemon.sse import (
+    Hook,
+    HookManager,
+    HookType,
+    SSEBroker,
+    SSEEvent,
+    SSEEventType,
+)
+
+
+# ---------------------------------------------------------------------------
+# SSE
+# ---------------------------------------------------------------------------
+
+class TestSSEEvent:
+    def test_to_sse_format(self):
+        event = SSEEvent("task_created", {"task_id": "t1"})
+        sse = event.to_sse()
+        assert sse.startswith("id: ")
+        assert "event: task_created" in sse
+        assert '"task_id": "t1"' in sse
+        assert sse.endswith("\n\n")
+
+    def test_custom_event_id(self):
+        event = SSEEvent("test", {}, event_id="my-id")
+        assert event.id == "my-id"
+        assert "id: my-id" in event.to_sse()
+
+
+class TestSSEBroker:
+    def test_subscribe_returns_queue(self):
+        broker = SSEBroker()
+        cid, queue = broker.subscribe()
+        assert cid
+        assert isinstance(queue, asyncio.Queue)
+
+    def test_publish_to_subscriber(self):
+        broker = SSEBroker()
+        cid, queue = broker.subscribe()
+
+        delivered = asyncio.run(broker.publish("task_created", {"id": "t1"}))
+        assert delivered == 1
+
+        event = queue.get_nowait()
+        assert event.event_type == "task_created"
+        assert event.data["id"] == "t1"
+
+    def test_unsubscribe(self):
+        broker = SSEBroker()
+        cid, _ = broker.subscribe()
+        assert broker.subscriber_count == 1
+
+        broker.unsubscribe(cid)
+        assert broker.subscriber_count == 0
+
+    def test_publish_no_subscribers(self):
+        broker = SSEBroker()
+        delivered = asyncio.run(broker.publish("test", {}))
+        assert delivered == 0
+
+    def test_history_kept(self):
+        broker = SSEBroker()
+        asyncio.run(broker.publish("e1", {"a": 1}))
+        asyncio.run(broker.publish("e2", {"b": 2}))
+
+        assert len(broker.history) == 2
+        assert broker.history[0].event_type == "e1"
+
+    def test_history_replays_to_new_subscriber(self):
+        broker = SSEBroker()
+        asyncio.run(broker.publish("e1", {"x": 1}))
+
+        cid, queue = broker.subscribe()
+        event = queue.get_nowait()
+        assert event.event_type == "e1"
+
+    def test_history_max(self):
+        broker = SSEBroker()
+        broker._max_history = 3
+        for i in range(5):
+            asyncio.run(broker.publish(f"e{i}", {}))
+        assert len(broker.history) == 3
+
+    def test_publish_sync(self):
+        broker = SSEBroker()
+        cid, queue = broker.subscribe()
+        delivered = broker.publish_sync("tick", {"n": 1})
+        assert delivered == 1
+        event = queue.get_nowait()
+        assert event.data["n"] == 1
+
+    def test_multiple_subscribers(self):
+        broker = SSEBroker()
+        c1, q1 = broker.subscribe()
+        c2, q2 = broker.subscribe()
+
+        asyncio.run(broker.publish("test", {"v": 42}))
+        assert q1.get_nowait().data["v"] == 42
+        assert q2.get_nowait().data["v"] == 42
+
+
+# ---------------------------------------------------------------------------
+# Hook
+# ---------------------------------------------------------------------------
+
+class TestHookManager:
+    def test_register_and_get(self):
+        hm = HookManager()
+        hook = Hook("h1", "task_created", HookType.WEBHOOK.value,
+                     {"url": "http://example.com"})
+        hm.register(hook)
+        assert hm.get("h1") is not None
+        assert hm.hook_count == 1
+
+    def test_unregister(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "*", HookType.CALLBACK.value, {}))
+        assert hm.unregister("h1") is True
+        assert hm.hook_count == 0
+
+    def test_list_hooks_by_event(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "task_created", HookType.WEBHOOK.value, {}))
+        hm.register(Hook("h2", "task_updated", HookType.WEBHOOK.value, {}))
+
+        created = hm.list_hooks(event_type="task_created")
+        assert len(created) == 1
+        assert created[0].hook_id == "h1"
+
+    def test_fire_matching_hook(self):
+        results = []
+
+        async def callback(data):
+            results.append(data)
+            return "ok"
+
+        hm = HookManager()
+        hm.register(Hook("h1", "task_created", HookType.CALLBACK.value,
+                          {"callback": callback}))
+
+        fire_results = asyncio.run(hm.fire("task_created", {"task_id": "t1"}))
+        assert len(fire_results) == 1
+        assert fire_results[0]["status"] == "success"
+        assert len(results) == 1
+
+    def test_fire_wildcard_hook(self):
+        results = []
+
+        async def callback(data):
+            results.append(data)
+
+        hm = HookManager()
+        hm.register(Hook("h1", "*", HookType.CALLBACK.value,
+                          {"callback": callback}))
+
+        asyncio.run(hm.fire("any_event", {"x": 1}))
+        assert len(results) == 1
+
+    def test_fire_no_match(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "task_created", HookType.CALLBACK.value,
+                          {"callback": lambda d: None}))
+
+        results = asyncio.run(hm.fire("task_updated", {}))
+        assert len(results) == 0
+
+    def test_fire_disabled_hook(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "*", HookType.CALLBACK.value,
+                          {"callback": lambda d: d}, enabled=False))
+
+        results = asyncio.run(hm.fire("test", {}))
+        assert len(results) == 0
+
+    def test_sync_callback(self):
+        results = []
+
+        def sync_callback(data):
+            results.append(data)
+            return "sync_ok"
+
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.CALLBACK.value,
+                          {"callback": sync_callback}))
+
+        fire_results = asyncio.run(hm.fire("test", {"v": 1}))
+        assert fire_results[0]["status"] == "success"
+        assert results[0]["v"] == 1
+
+    def test_hook_fire_count(self):
+        async def cb(data):
+            pass
+
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.CALLBACK.value,
+                          {"callback": cb}))
+
+        asyncio.run(hm.fire("test", {}))
+        asyncio.run(hm.fire("test", {}))
+        assert hm.get("h1").fire_count == 2
+        assert hm.get("h1").last_fired is not None
+
+
+# ---------------------------------------------------------------------------
+# T4: 错误处理
+# ---------------------------------------------------------------------------
+
+class TestHookErrors:
+    def test_webhook_error_handled(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.WEBHOOK.value,
+                          {"url": "http://nonexistent.invalid/hook"}))
+
+        results = asyncio.run(hm.fire("test", {}))
+        assert len(results) == 1
+        assert results[0]["status"] == "error"
+
+    def test_script_error_handled(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.SCRIPT.value,
+                          {"script": "/nonexistent/script.sh"}))
+
+        results = asyncio.run(hm.fire("test", {}))
+        assert len(results) == 1
+        assert results[0]["status"] == "error"
+
+    def test_callback_error_handled(self):
+        def bad_callback(data):
+            raise RuntimeError("callback error")
+
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.CALLBACK.value,
+                          {"callback": bad_callback}))
+
+        results = asyncio.run(hm.fire("test", {}))
+        assert results[0]["status"] == "error"
+        assert "callback error" in results[0]["error"]
+
+    def test_no_callable_callback(self):
+        hm = HookManager()
+        hm.register(Hook("h1", "test", HookType.CALLBACK.value,
+                          {"callback": None}))
+
+        results = asyncio.run(hm.fire("test", {}))
+        assert results[0]["status"] == "error"