diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index 9feee202..00000000
--- a/.coveragerc
+++ /dev/null
@@ -1,5 +0,0 @@
-[report]
-exclude_lines =
-    pragma: no cover
-    if TYPE_CHECKING:
-    @abstractmethod
diff --git a/aiogram/dispatcher/webhook/aiohttp_server.py b/aiogram/dispatcher/webhook/aiohttp_server.py
index 9394664a..fefcf2b4 100644
--- a/aiogram/dispatcher/webhook/aiohttp_server.py
+++ b/aiogram/dispatcher/webhook/aiohttp_server.py
@@ -26,10 +26,10 @@ def setup_application(app: Application, dispatcher: Dispatcher, /, **kwargs: Any
         **kwargs,
     }
 
-    async def on_startup(*a: Any, **kw: Any) -> None:
+    async def on_startup(*a: Any, **kw: Any) -> None:  # pragma: no cover
         await dispatcher.emit_startup(**workflow_data)
 
-    async def on_shutdown(*a: Any, **kw: Any) -> None:
+    async def on_shutdown(*a: Any, **kw: Any) -> None:  # pragma: no cover
         await dispatcher.emit_shutdown(**workflow_data)
 
     app.on_startup.append(on_startup)
diff --git a/pyproject.toml b/pyproject.toml
index edb8df95..cf6e8959 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,6 +77,7 @@ pytest-lazy-fixture = "^0.6.3"
 pytest-mock = "^3.6.0"
 pytest-mypy = "^0.8.1"
 pytest-cov = "^2.11.1"
+pytest-aiohttp = "^0.3.0"
 aresponses = "^2.1.4"
 asynctest = "^0.13.0"
 toml = "^0.10.2"
diff --git a/tests/test_dispatcher/test_webhook/__init__.py b/tests/test_dispatcher/test_webhook/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/test_dispatcher/test_webhook/test_aiohtt_server.py b/tests/test_dispatcher/test_webhook/test_aiohtt_server.py
new file mode 100644
index 00000000..c75ed518
--- /dev/null
+++ b/tests/test_dispatcher/test_webhook/test_aiohtt_server.py
@@ -0,0 +1,37 @@
+from typing import Any
+
+import pytest
+from aiohttp.web_app import Application
+
+from aiogram import Dispatcher
+from aiogram.dispatcher.webhook.aiohttp_server import ip_filter_middleware, setup_application
+from aiogram.dispatcher.webhook.security import IPFilter
+from aiogram.methods import Request
+
+
+class TestAiohttpServer:
+    def test_setup_application(self):
+        app = Application()
+
+        dp = Dispatcher()
+        setup_application(app, dp)
+
+        assert len(app.router.routes()) == 0
+        assert len(app.on_startup) == 2
+        assert len(app.on_shutdown) == 1
+
+    async def test_middleware(self, aiohttp_client: Any):
+        app = Application()
+        app.middlewares.append(ip_filter_middleware(IPFilter.default()))
+
+        async def handler1(request: Request):
+            pass
+
+        async def handler2(request: Request):
+            pytest.fail()
+
+        app.router.add_route("POST", "/good", handler1)
+        app.router.add_route("POST", "/bad", handler2)
+        client = await aiohttp_client(app)
+        resp = await client.get("/bad")
+        assert resp
diff --git a/tests/test_dispatcher/test_webhook/test_security.py b/tests/test_dispatcher/test_webhook/test_security.py
new file mode 100644
index 00000000..6a9b84a0
--- /dev/null
+++ b/tests/test_dispatcher/test_webhook/test_security.py
@@ -0,0 +1,57 @@
+from ipaddress import IPv4Address, IPv4Network
+
+import pytest
+
+from aiogram.dispatcher.webhook.security import IPFilter
+
+
+class TestSecurity:
+    def test_empty_init(self):
+        ip_filter = IPFilter()
+        assert not ip_filter._allowed_ips
+
+    @pytest.mark.parametrize(
+        "ip,result",
+        [
+            ("127.0.0.1", True),
+            ("127.0.0.2", False),
+            (IPv4Address("127.0.0.1"), True),
+            (IPv4Address("127.0.0.2"), False),
+            (IPv4Address("192.168.0.32"), True),
+            ("192.168.0.33", False),
+            ("10.111.0.5", True),
+            ("10.111.0.100", True),
+            ("10.111.1.100", False),
+        ],
+    )
+    def test_check_ip(self, ip, result):
+        ip_filter = IPFilter(
+            ips=["127.0.0.1", IPv4Address("192.168.0.32"), IPv4Network("10.111.0.0/24")]
+        )
+        assert (ip in ip_filter) is result
+
+    def test_default(self):
+        ip_filter = IPFilter.default()
+        assert isinstance(ip_filter, IPFilter)
+        assert len(ip_filter._allowed_ips) == 5116
+        assert "91.108.4.50" in ip_filter
+        assert "149.154.160.20" in ip_filter
+
+    @pytest.mark.parametrize(
+        "ip,ip_range",
+        [
+            ["127.0.0.1", {IPv4Address("127.0.0.1")}],
+            ["91.108.4.0/22", set(IPv4Network("91.108.4.0/22").hosts())],
+            [IPv4Address("91.108.4.5"), {IPv4Address("91.108.4.5")}],
+            [IPv4Network("91.108.4.0/22"), set(IPv4Network("91.108.4.0/22").hosts())],
+            [42, set()],
+        ],
+    )
+    def test_allow_ip(self, ip, ip_range):
+        ip_filter = IPFilter()
+        if not ip_range:
+            with pytest.raises(ValueError):
+                ip_filter.allow_ip(ip)
+        else:
+            ip_filter.allow_ip(ip)
+            assert ip_filter._allowed_ips == ip_range