diff --git a/server.db b/server.db
new file mode 100644
index 0000000..7fc2400
Binary files /dev/null and b/server.db differ
diff --git a/src/server_test.py b/src/server_test.py
index 9d317bc..9aab8e2 100644
--- a/src/server_test.py
+++ b/src/server_test.py
@@ -1,27 +1,141 @@
-import unittest
-import sqlite3
+import sys
 import os
-from server import init_db
+
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../src")))
+
+import sqlite3
+import pytest
+from fastapi.testclient import TestClient
+from server import app, validate_ip
+
+# 创建 TestClient 实例
+client = TestClient(app)
 
 
-class TestServer(unittest.TestCase):
-    def test_init_creates_table(self):
-        # 执行初始化函数
-        init_db()
-
-        conn = sqlite3.connect("server.db")
-        cursor = conn.cursor()
-        # 检查表是否被正确创建
-        cursor.execute(
-            "SELECT name FROM sqlite_master WHERE type='table' AND name='nodes'"
+# 准备测试数据库数据
+def setup_db():
+    # 创建数据库并插入测试数据
+    with sqlite3.connect("server.db") as db:
+        db.execute(
+            """
+        CREATE TABLE IF NOT EXISTS nodes (
+            id INTEGER PRIMARY KEY, 
+            ip TEXT NOT NULL, 
+            last_heartbeat INTEGER NOT NULL
         )
-        tables = cursor.fetchall()
-
-        self.assertTrue(any("nodes" in table for table in tables))
-        # 关闭数据库连接
-        conn.close()
-        os.remove("server.db")
+        """
+        )
+        db.execute(
+            "INSERT INTO nodes (ip, last_heartbeat) VALUES ('192.168.0.1', 1234567890)"
+        )
+        db.execute(
+            "INSERT INTO nodes (ip, last_heartbeat) VALUES ('192.168.0.2', 1234567890)"
+        )
+        db.commit()
 
 
-if __name__ == "__main__":
-    unittest.main()
+# 清空数据库
+def clear_db():
+    with sqlite3.connect("server.db") as db:
+        db.execute("DROP TABLE IF EXISTS nodes")  # 删除旧表
+        db.commit()
+
+
+# 测试 IP 验证功能
+def test_validate_ip():
+    assert validate_ip("192.168.0.1") is True
+    assert validate_ip("256.256.256.256") is False
+    assert validate_ip("::1") is True
+    assert validate_ip("invalid_ip") is False
+
+
+# 测试首页路由
+def test_home():
+    response = client.get("/")
+    assert response.status_code == 200
+    assert response.json() == {"message": "Hello, World!"}
+
+
+# 测试 show_nodes 路由
+def test_show_nodes():
+    setup_db()
+
+    response = client.get("/server/show_nodes")
+    assert response.status_code == 200
+
+    data = response.json()
+    assert len(data) == 2
+    assert data[0][1] == "192.168.0.1"
+    assert data[1][1] == "192.168.0.2"
+
+
+# 测试 get_node 路由
+def test_get_node():
+    # 确保数据库和表的存在
+    setup_db()
+
+    valid_ip = "192.168.0.3"
+    invalid_ip = "256.256.256.256"
+
+    # 测试有效的 IP 地址
+    response = client.get(f"/server/get_node?ip={valid_ip}")
+    assert response.status_code == 200
+
+    # 测试无效的 IP 地址
+    response = client.get(f"/server/get_node?ip={invalid_ip}")
+    assert response.status_code == 400
+
+
+# 测试 delete_node 路由
+def test_delete_node():
+    setup_db()
+
+    valid_ip = "192.168.0.1"
+    invalid_ip = "192.168.0.255"
+
+    response = client.get(f"/server/delete_node?ip={valid_ip}")
+    assert response.status_code == 200
+    assert "Node with IP 192.168.0.1 deleted successfully." in response.text
+
+    response = client.get(f"/server/delete_node?ip={invalid_ip}")
+    assert response.status_code == 404
+
+
+# 测试 heartbeat 路由
+def test_receive_heartbeat():
+    setup_db()
+
+    valid_ip = "192.168.0.2"
+    invalid_ip = "256.256.256.256"
+
+    response = client.get(f"/server/heartbeat?ip={valid_ip}")
+    assert response.status_code == 200
+    assert response.json() == {"status": "received"}
+
+    response = client.get(f"/server/heartbeat?ip={invalid_ip}")
+    assert response.status_code == 400
+    assert response.json() == {"message": "invalid ip format"}
+
+
+# 测试 send_nodes_list 路由
+def test_send_nodes_list():
+    setup_db()
+
+    response = client.get("/server/send_nodes_list?count=1")
+    assert response.status_code == 200
+    data = response.json()
+    assert len(data) == 1
+    assert data[0] == "192.168.0.1"
+
+    response = client.get("/server/send_nodes_list?count=2")
+    assert response.status_code == 200
+    data = response.json()
+    assert len(data) == 2
+
+
+# 运行完测试后清理数据库
+@pytest.fixture(autouse=True)
+def run_around_tests():
+    clear_db()
+    yield
+    clear_db()